PTC thermistors as
limit temperature sensors
SMD, EIA case sizes 0402, 0603 and 0805,
superior series
Series/Type:
B59421, B59641, B59721
Date:
August 2019
© TDK Electronics AG 2019. Reproduction, publication and dissemination of this publication, enclosures hereto
and the information contained therein without TDK Electronics' prior express consent is prohibited.
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Applications
Over-temperature protection of power components
DC/DC converters
SMPS
Notebooks
Home appliances
Dimmers
Electronic ballasts
Automotive electronics
Secondary protection of battery packs
Features
Qualification based on AEC-Q200 rev. D
Suitable for reflow soldering
Suitable for flow soldering only for types with ordering code ending in A562
Fast and reliable response
RoHS-compatible
UL approval to UL1434
Certified in accordance with IEC 60738-1 and IEC 60730-1; Annex J15 and J17
Lead-free terminations (tinned) for EIA case sizes 0603 and 0805
Lead-free ceramics for EIA case sizes 0402 and 0805, except B59421A0135A062
Options
Other Tsense or resistance values on request
Delivery mode
Blister tape (EIA case size 0805) or cardboard tape (EIA case sizes 0402 and 0603),
180-mm reel with 8-mm tape, taping to IEC 60286-3
Packing unit: 10.000 pcs. for EIA case size 0402, 4.000 pcs. for EIA case sizes 0805 and
0603
General technical data
Max. operating voltage
Minimum operating temperature
Maximum operating temperature
Please read Cautions and warnings and
Important notes at the end of this document.
(V ≤ Vmax)
(V ≤ Vmax)
Page 2 of 35
Vmax
Top,min
Top,max
32
40
125 °C or Tsense,1 +25 °C
whichever is higher
V DC
°C
°C
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Electrical specifications and ordering codes
EIA case sizes 0402 and 0603
RR
(V ≤ Vmax)
Ω
∆RR
%
Tsense,1
(@ 4.7 kΩ)
°C
Tsense,2
(@ 47 kΩ)
°C
Ordering code
EIA case size 0402
470
±50
75 ±5
B59421A0075A062
470
±50
85 ±5
B59421A0085A062
470
±50
95 ±5
B59421A0095A062
470
±50
105 ±5
B59421A0105A062
470
±50
115 ±5
B59421A0115A062
470
±50
125 ±5
B59421A0125A062
470
±50
135 ±5
B59421A0135A062
EIA case size 0603
470
±50
75 ±5
90 ±7
B59641A0075A062
470
±50
85 ±5
100 ±7
B59641A0085A062
470
±50
95 ±5
110 ±7
B59641A0095A062
470
±50
95 ±5
B59641A0095A562
470
±50
105 ±5
120 ±7
B59641A0105A062
470
±50
105 ±5
B59641A0105A562
470
±50
115 ±5
130 ±7
B59641A0115A062
470
±50
125 ±5
140 ±7
B59641A0125A062
470
±50
135 ±5
150 ±7
B59641A0135A062
470
±50
145 ±5
B59641A0145A062
Note:
In order to limit self heating effects the electrical power during measurement should be below
2 mW for EIA case size 0402 and below 4 mW for EIA case size 0603.
Please read Cautions and warnings and
Important notes at the end of this document.
Page 3 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Electrical specifications and ordering codes
EIA case size 0805
RR
(V ≤ Vmax)
Ω
∆RR Tsense,1 R
R
(Tsense,1 5°C) (Tsense,1 +5°C)
%
°C
kΩ
kΩ
R
(Tsense,1 +15°C)
kΩ
Ordering code
EIA case size 0805
680
±50 70
≤ 5.7
≥ 5.7
≥ 401)
B59721A0070A062
680
±50 80
≤ 5.7
≥ 5.7
≥ 401)
B59721A0080A062
680
±50 90
≤ 5.5
≥ 13.3
≥ 40
B59721A0090A062
680
±50 90
≤ 5.5
≥ 13.3
≥ 40
B59721A0090A562
680
±50 100
≤ 5.5
≥ 13.3
≥ 40
B59721A0100A062
680
±50 100
≤ 5.5
≥ 13.3
≥ 40
B59721A0100A562
680
±50 110
≤ 5.5
≥ 13.3
≥ 40
B59721A0110A062
680
±50 120
≤ 5.5
≥ 13.3
≥ 40
B59721A0120A062
680
±50 130
≤ 5.5
≥ 13.3
≥ 40
B59721A0130A062
Note:
In order to limit self heating effects the electrical power during measurement should be below
6 mW for EIA case size 0805.
1) R (Tsense,1 +25 °C)
Please read Cautions and warnings and
Important notes at the end of this document.
Page 4 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Dimensional drawings in mm
EIA case size 0402
Solder pad
Recommended maximum dimensions (mm)
EIA case size 0603
Solder pad
Recommended maximum dimensions (mm)
EIA case size 0805
Solder pad
Recommended maximum dimensions (mm)
Please read Cautions and warnings and
Important notes at the end of this document.
Page 5 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Reliability data
Test
Electrical endurance,
cycling
Electrical endurance,
constant
Damp heat
Standard
IEC 60738-1
Rapid change
of temperature I
IEC 60738-1
Rapid change
of temperature II
AEC-Q200 /
IEC 60738-1,
item 4.17
IEC 60738-1
Vibration I
IEC 60738-1
IEC 60738-1
Vibration II
MIL-STD-202,
method 204
Shock
IEC 60738-1
Climatic sequence
IEC 60738-1
Bending test
IEC 60738-1
Please read Cautions and warnings and
Important notes at the end of this document.
Test conditions
Room temperature: Ismax , Vmax;
Number of cycles: 100
Storage at Vmax and Top,max (@ Vmax)
Test duration: 1000 h
Temperature of air: 40 °C
Relative humidity of air: 93%
Duration: 56 days
Test according to IEC 60068-2-78
TLCT = Top,min, TUCT = Top,max
Number of cycles: 5
Test duration: 30 min
Test according to IEC 60068-2-14, test Na
TLCT = 55 °C,
TUCT = 125 °C
Number of cycles: 1000
Frequency: 10 ... 2000 Hz
Displacement amplitude: 0.75 mm, resp.
Acceleration: 98 m/s2
Test duration: 3 × 2 h
Test according to IEC 60028-2-6, test Fc
Frequency: 10 ... 2000 Hz
Displacement amplitude: 0.75 mm, resp.
Acceleration: 50 m/s2
Test duration: 3 × 2 h
Test according to IEC 60028-2-6, test Fc
Pulse shape: half-sine
Acceleration: 400 m/s2
Pulse duration: 6 ms; 6 x 5000 pulses
Test according to IEC 60068-2-27, test Ea
∆R25/R25
< 20%
Dry heat: TUCT = 125 °C
Test duration: 16 h
Damp heat first cycle
Cold: TLCT = 40 °C
Test duration: 2 h
Damp heat 5 cycles
Tests performed according to
IEC 60068-2-30
Components reflow-soldered to test board
Maximum bendig: 2 mm
Test according to IEC 60068-2-21, test Ue
< 20%
Page 6 of 35
< 20%
< 20%
< 20%
< 25%
< 20%
< 20%
< 20%
< 20%
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Test
Shear test
Standard
Humidity
Superior series
Test conditions
Shearing of the component soldered on PCB
by a force of 5 N normal to components
longitudinal axis
T = 85 °C; H = 85% r.H.; t = 1000 h
V = 0.05 Vmax
AEC-Q200 /
MIL-STD-202,
method 103
Resistance to
AEC-Q200 /
Soldering bath: 260 °C; t = 20 s
soldering heat
IEC 60068-2-20,
test Tb
ESD
AEC-Q200-002 150 pF/ 330 Ω; 8 kV contact discharge,
10 pulses in each polarity
High temperature load
Soldered PTC to PCB @ 85 °C, load
maximum operating voltage for 1.5 h on and
0.5 h off. This cycle is repeated for
1000 ±12 h
Please read Cautions and warnings and
Important notes at the end of this document.
Page 7 of 35
∆R25/R25
No visible
damage
< 20%
< 20%
< 20%
< 20%
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0402
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
400
815
1.230
70
1.300
2.700
345
692
1.040
75
2.400
4.700
9.800
300
605
910
80
4.700
8.500
20.500
10
270
540
810
85
7.700
14.200
39.500
0
243
486
730
90
11.700
23.500
72.000
10
235
470
705
93
14.900
31.000
100.000
20
232
463
695
100
25.100
59.000
25
235
470
705
106
38.500
100.000
30
238
477
717
110
51.000
35
247
490
739
120
100.000
40
260
520
790
50
320
660
940
60
500
990
1.400
30
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 8 of 35
4.700
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0402
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
409
835
1.260
65
328
670
1.030
358
724
1.090
70
410
830
1.450
316
640
963
75
590
1.200
2.500
10
287
578
870
80
1.070
2.250
4.700
0
264
531
800
85
2.300
4.700
8.900
10
247
498
748
90
4.700
8.500
16.000
20
237
476
715
100
12.800
24.000
46.000
25
235
472
709
108
24.500
49.000
100.000
30
233
468
706
117
46.000
100.000
235
473
712
120
56.000
40
50
249
504
760
130
100.000
55
265
537
809
60
289
588
890
30
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 9 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0402
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
429
887
1.346
80
390
810
1.300
373
765
1.158
85
580
1.200
2.200
330
673
1.015
90
1.100
2.300
4.700
10
297
603
909
95
2.300
4.700
10.200
19.000
30
20
0
272
548
824
100
4.700
9.300
10
253
508
764
110
14.000
27.500
57.000
20
240
481
722
116
24.000
49.500
100.000
25
235
470
705
120
33.000
69.000
40
227
452
684
124
45.500
100.000
50
231
461
697
130
71.000
60
242
490
743
135
100.000
70
278
570
868
75
316
650
994
Please read Cautions and warnings and
Important notes at the end of this document.
Page 10 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0402
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
420
880
1.340
90
330
743
1.150
368
774
1.180
95
460
1.150
2.000
329
679
1.030
100
930
2.200
4.700
10
298
604
910
105
2.250
4.700
9.900
0
273
557
840
110
4.700
9.500
19.000
10
254
517
780
115
7.500
16.500
35.000
25
235
470
705
120
11.500
26.000
61.000
40
222
445
667
125
16.700
42.000
100.000
50
218
436
655
130
24.000
64.000
60
219
439
658
136
36.000
100.000
70
229
458
687
140
46.000
80
256
518
780
153
100.000
30
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 11 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0402
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
30
20
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
420
880
1.340
100
283
580
990
368
774
1.180
105
372
830
1.750
329
679
1.030
110
640
1.800
4.700
10
298
608
910
115
1.700
4.700
12.500
0
273
556
840
120
4.700
10.500
29.000
10
254
514
780
129
12.400
29.000
100.000
25
235
470
705
130
13.500
32.000
40
220
433
655
140
29.600
82.000
50
213
416
632
142
34.500
100.000
60
207
402
615
150
61.000
70
206
400
605
157
100.000
80
209
408
630
90
226
440
710
Please read Cautions and warnings and
Important notes at the end of this document.
Page 12 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0402
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
435
860
1.310
100
205
416
385
752
1.140
110
240
520
900
342
675
1.025
115
322
800
1.700
10
308
608
930
120
630
1.800
4.700
0
278
558
848
125
1.850
4.700
11.500
10
258
514
780
130
4.700
9.900
24.000
25
235
470
705
140
16.000
33.000
88.000
40
218
431
645
141
17.800
37.000
100.000
50
208
410
610
150
40.000
92.000
60
200
391
580
151
43.500
100.000
70
195
380
562
160
87.000
80
192
373
555
162
100.000
90
194
383
568
30
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 13 of 35
622
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0402
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
467
966
1.465
95
270
560
398
820
1.241
100
293
604
970
348
710
1.072
105
325
670
1.090
10
310
628
946
110
368
760
1.270
0
281
566
852
115
438
900
1.530
10
258
517
777
120
570
1.100
1.960
20
241
484
727
125
830
1.550
2.800
25
235
470
705
130
1.350
2.500
4.700
40
224
447
670
135
2.400
4.700
9.100
50
219
439
659
140
4.700
9.000
19.000
60
219
441
662
150
15.000
33.000
88.000
70
224
453
682
151
16.700
37.000
100.000
80
235
480
726
160
40.000
95.000
90
253
523
810
30
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 14 of 35
880
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0603
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
296
680
1.100
60
430
920
1.600
270
610
980
65
590
1.350
2.500
255
550
870
70
1.000
2.300
4.700
10
244
510
790
75
2.050
4.700
10.000
25.000
30
20
0
235
485
740
80
4.700
10.300
10
231
470
705
83
7.300
17.000
47.000
20
232
465
700
96
11.100
26.500
100.000
25
235
470
705
90
19.000
47.000
30
240
480
720
95
37.000
100.000
40
265
520
800
97
47.000
50
310
620
990
103
100.000
Please read Cautions and warnings and
Important notes at the end of this document.
Page 15 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0603
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
350
772
1.250
90
4.700
11.000
29.000
290
620
970
93
7.300
17.500
47.000
10
270
568
880
95
9.700
23.500
61.000
0
252
522
805
99
17.000
42.000
100.000
10
242
490
750
100
19.500
47.000
25
235
470
705
105
37.000
82.000
40
248
490
736
107
47.000
100.000
50
278
550
830
110
65.500
60
346
690
1.050
114
100.000
70
498
1.030
1.530
75
680
1.450
2.300
80
1.080
2.300
4.700
85
2.150
4.700
12.000
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 16 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0603
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
350
770
1.300
85
640
1.350
298
585
999
90
1.030
2.210
4.700
10
277
540
900
95
2.050
4.700
11.000
28.000
20
2.350
0
261
510
820
100
4.700
10.500
10
248
485
755
103
7.200
17.000
47.000
20
238
472
715
108
14.000
35.500
100.000
25
235
470
705
110
18.300
47.000
30
237
472
708
115
36.000
100.000
40
243
480
725
117
47.000
50
257
510
770
123
100.000
60
285
570
870
70
345
710
1.050
80
478
995
1.550
Please read Cautions and warnings and
Important notes at the end of this document.
Page 17 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0603
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
500
1.050
1.720
80
300
585
900
355
743
1.130
90
450
810
1.380
10
310
635
965
95
645
1.200
2.200
0
275
558
850
100
1.100
2.200
4.700
10
255
508
770
105
2.200
4.700
12.600
20
240
479
718
110
4.700
10.900
29.500
25
235
470
705
113
7.500
18.000
47.000
30
230
460
690
118
15.800
37.000
100.000
40
222
447
674
120
21.000
47.000
50
222
448
676
125
38.000
83.000
60
231
465
698
127
47.000
100.000
70
252
503
762
136
100.000
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 18 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0603
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
410
900
1.700
90
290
560
840
335
690
1.200
100
410
780
1.250
10
305
612
1.020
105
570
1.090
2.050
0
278
552
890
110
960
2.050
4.700
10
256
510
790
115
1.950
4.700
12.000
20
241
482
728
120
4.700
11.000
29.000
25
235
470
705
123
7.700
17.500
47.000
30
231
460
690
128
15.400
36.000
100.000
40
225
441
670
130
20.000
47.000
50
221
430
655
136
42.500
100.000
60
220
425
650
137
47.000
70
225
438
665
145
100.000
80
243
475
710
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 19 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0603
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
380
810
1.500
90
222
461
320
668
1.140
100
250
541
900
10
296
612
1.010
110
325
765
1.350
2.200
20
716
0
275
563
900
115
430
1.060
10
256
520
800
120
700
1.900
4.700
20
241
486
728
125
1.680
4.700
11.000
25
235
470
705
130
4.700
10.000
28.000
30
229
458
688
133
7.700
15.500
47.000
40
220
439
660
137
13.500
29.000
100.000
50
211
425
641
140
20.000
47.000
60
207
417
630
145
36.700
100.000
70
206
415
634
147
47.000
80
210
426
655
154
100.000
Please read Cautions and warnings and
Important notes at the end of this document.
Page 20 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0603
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
380
810
1.460
100
203
432
320
668
1.130
110
225
495
825
10
296
612
1.008
120
292
665
1.230
2.100
20
690
0
275
563
900
125
402
980
10
256
520
800
130
680
1.950
4.700
20
241
486
728
135
1.610
4.700
11.000
25
235
470
705
140
4.700
10.500
28.000
30
229
456
687
143
7.700
16.500
47.000
40
218
433
655
147
13.500
30.000
100.000
50
209
416
630
150
19.800
47.000
60
202
404
614
155
36.800
100.000
70
198
396
609
157
47.000
80
195
397
615
163
100.000
90
196
405
635
Please read Cautions and warnings and
Important notes at the end of this document.
Page 21 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0603
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
380
800
1.400
100
205
410
650
320
662
1.100
110
218
438
710
10
296
608
990
120
245
505
845
0
275
561
892
130
310
685
1.280
10
256
519
795
135
410
1.000
2.150
20
241
485
728
140
710
2.030
4.700
25
235
470
705
145
1.610
4.700
11.000
30
229
456
687
150
4.700
10.500
28.000
40
218
433
655
153
7.700
16.800
47.000
50
209
414
630
157
13.500
30.500
100.000
60
202
400
614
160
19.800
47.000
70
198
392
605
165
37.000
100.000
80
195
390
610
167
47.000
90
196
395
625
174
100.000
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 22 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0805
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
460
940
1.430
50
470
870
1.420
395
795
1.190
60
720
1.370
2.610
10
370
745
1.110
65
1.160
2.400
5.700
0
350
709
1.050
70
2.500
5.700
16.500
10
340
685
1.022
75
5.700
12.500
52.000
20
337
678
1.015
78
8.700
19.700
100.000
25
340
680
1.020
80
11.200
26.000
30
345
688
1.030
89
32.500
100.000
40
380
735
1.110
99
100.000
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 23 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0805
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
490
1.110
1.690
60
455
900
1.420
415
905
1.340
70
690
1.390
2.600
10
388
822
1.210
75
1.100
2.440
5.700
0
365
755
1.120
80
2.500
5.700
17.000
10
350
710
1.060
85
5.700
12.700
52.500
20
342
683
1.025
88
8.600
20.800
100.000
25
340
680
1.020
90
11.400
28.000
30
339
677
1.016
98
31.500
100.000
40
348
697
1.045
108
100.000
50
378
750
1.120
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 24 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0805
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
540
1.200
1.900
60
360
760
1.110
455
960
1.460
70
450
960
1.450
10
420
870
1.310
80
720
1.700
2.600
0
390
790
1.200
85
1.290
2.900
5.500
10
365
730
1.110
90
3.800
9.200
22.000
20
347
690
1.040
95
13.300
26.000
80.000
25
340
680
1.020
96
15.900
30.500
100.000
30
335
675
1.010
100
28.000
57.000
40
330
670
995
104
45.000
100.000
50
335
686
1.010
111
100.000
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 25 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0805
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
600
1.360
2.010
60
315
620
935
485
1.055
1.570
70
341
665
1.010
10
440
945
1.400
80
420
830
1.270
0
403
845
1.250
90
640
1.350
2.200
10
373
765
1.140
95
1.100
2.500
5.500
20
350
703
1.050
100
3.550
8.300
21.000
25
340
680
1.020
105
13.300
26.200
69.000
30
332
662
998
107
19.000
37.500
100.000
40
320
635
955
113
39.000
100.000
312
618
930
122
100.000
50
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 26 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0805
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
565
1.260
2.150
70
288
522
468
1.025
1.660
80
311
560
870
10
431
930
1.480
90
385
725
1.110
2.080
20
810
0
400
840
1.320
100
620
1.300
10
373
766
1.180
105
1.080
2.500
5.500
20
350
706
1.060
110
3.500
8.500
30.000
25
340
680
1.020
114
10.800
25.000
100.000
30
331
653
985
115
13.300
31.000
40
315
610
930
120
30.000
100.000
50
300
570
875
129
100.000
60
290
538
830
Please read Cautions and warnings and
Important notes at the end of this document.
Page 27 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0805
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
555
1.205
1.980
70
266
485
755
468
1.000
1.595
80
257
458
715
10
432
915
1.435
90
256
454
713
0
400
833
1.298
100
275
510
825
10
375
768
1.170
110
355
810
1.500
20
352
708
1.060
115
560
1.700
5.500
25
340
680
1.020
120
2.500
10.000
45.000
30
329
654
983
122
5.000
19.000
100.000
40
310
604
917
125
13.300
45.000
50
292
561
855
128
23.000
100.000
60
278
520
798
139
100.000
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 28 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Characteristics (typical) for case size 0805
PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage).
Rmin and Rmax values are typical values for reference only.
TPTC
°C
40
Rmin
Ω
Rtypical
Ω
Rmax
Ω
TPTC
°C
Rmin
Ω
Rtypical
Ω
Rmax
Ω
548
1.190
1.930
80
233
440
675
465
990
1.570
90
220
408
630
10
432
908
1.405
100
212
390
605
0
401
830
1.278
110
218
425
660
10
375
765
1.160
120
270
620
1.180
20
352
707
1.060
125
410
1.300
5.500
25
340
680
1.020
130
1.670
12.000
65.000
30
329
652
980
131
2.550
19.000
100.000
40
307
601
910
135
13.300
62.000
50
287
556
845
137
23.000
100.000
60
268
515
785
145
100.000
70
250
476
726
20
Please read Cautions and warnings and
Important notes at the end of this document.
Page 29 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Cautions and warnings
General
TDK Electronics thermistors are designed for specific applications and should not be used for
purposes not identified in our specifications, application notes and data books unless otherwise
agreed with TDK Electronics during the design-in-phase.
Ensure suitability of thermistor through reliability testing during the design-in phase. The thermistors should be evaluated taking into consideration worst-case conditions.
Storage
Store thermistors only in original packaging. Do not open the package prior to processing.
Storage conditions in original packaging: storage temperature 25 °C ... +45 °C, relative humidity ≤75% annual mean, maximum 95%, dew precipitation is inadmissible.
Avoid contamination of thermistors surface during storage, handling and processing.
Avoid storage of thermistor in harmful environment with effect on function on long-term operation (examples given under operation precautions).
Use thermistor within the following period after delivery:
Through-hole devices (housed and leaded PTCs): 24 months
Motor protection sensors, glass-encapsulated sensors and probe assemblies: 24 months
Telecom pair and quattro protectors (TPP, TQP): 24 months
Leadless PTC thermistors for pressure contacting: 12 months
Leadless PTC thermistors for soldering: 6 months
SMDs in EIA sizes 3225 and 4032, and for PTCs with metal tags: 24 months
SMDs in EIA sizes 1210 and smaller: 12 months
Handling
PTCs must not be dropped. Chip-offs must not be caused during handling of PTCs.
The ceramic and metallization of the components must not be touched with bare hands. Gloves
are recommended.
Avoid contamination of thermistor surface during handling.
Soldering (where applicable)
Use rosin-type flux or non-activated flux.
Insufficient preheating may cause ceramic cracks.
Rapid cooling by dipping in solvent is not recommended.
Complete removal of flux is recommended.
Standard PTC heaters are not suitable for soldering.
Please read Cautions and warnings and
Important notes at the end of this document.
Page 30 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Superior series
Mounting
Electrode must not be scratched before/during/after the mounting process.
Contacts and housing used for assembly with thermistor have to be clean before mounting. Especially grease or oil must be removed.
When PTC thermistors are encapsulated with sealing material, the precautions given in chapter
"Mounting instructions", "Sealing and potting" must be observed.
When the thermistor is mounted, there must not be any foreign body between the electrode of
the thermistor and the clamping contact.
The minimum force and pressure of the clamping contacts pressing against the PTC must be
10 N and 50 kPa, respectively. In case the assembly is exposed to mechanical shock and/ or
vibration this force should be higher in order to avoid movement of the PTC during operation.
During operation, the thermistor’s surface temperature can be very high. Ensure that adjacent
components are placed at a sufficient distance from the thermistor to allow for proper cooling at
the thermistors.
Ensure that adjacent materials are designed for operation at temperatures comparable to the
surface temperature of thermistor. Be sure that surrounding parts and materials can withstand
this temperature.
Avoid contamination of thermistor surface during processing.
Operation
Use thermistors only within the specified temperature operating range.
Use thermistors only within the specified voltage and current ranges.
Environmental conditions must not harm the thermistors. Use thermistors only in normal atmospheric conditions. Avoid use in deoxidizing gases (chlorine gas, hydrogen sulfide gas, ammonia gas, sulfuric acid gas etc), corrosive agents, humid or salty conditions. Contact with any
liquids and solvents should be prevented.
Be sure to provide an appropriate fail-safe function to prevent secondary product damage
caused by abnormal function (e.g. use VDR for limitation of overvoltage condition).
This listing does not claim to be complete, but merely reflects the experience of TDK Electronics.
Display of ordering codes for TDK Electronics products
The ordering code for one and the same product can be represented differently in data sheets,
data books, other publications, on the company website, or in order-related documents such as
shipping notes, order confirmations and product labels. The varying representations of the
ordering codes are due to different processes employed and do not affect the
specifications of the respective products. Detailed information can be found on the Internet
under www.tdk-electronics.tdk.com/orderingcodes.
Please read Cautions and warnings and
Important notes at the end of this document.
Page 31 of 35
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
Symbols and terms
Symbol
A
C
Cth
f
I
Imax
IR
Ires
IPTC
Ir
Ir,oil
Ir,air
IRMS
IS
ISmax
LCT
N
Nc
Nf
P
P25
Pel
Pdiss
RG
Rmin
RR
∆RR
RP
RPTC
Rref
RS
R25
R25,match
∆R25
Term
Area
Capacitance
Heat capacity
Frequency
Current
Maximum current
Rated current
Residual current
PTC current
Residual currrent
Residual currrent in oil (for level sensors)
Residual currrent in air (for level sensors)
Root-mean-square value of current
Switching current
Maximum switching current
Lower category temperature
Number (integer)
Operating cycles at Vmax, charging of capacitor
Switching cycles at Vmax, failure mode
Power
Maximum power at 25 °C
Electrical power
Dissipation power
Generator internal resistance
Minimum resistance
Rated resistance @ rated temperature TR
Tolerance of RR
Parallel resistance
PTC resistance
Reference resistance
Series resistance
Resistance at 25 °C
Resistance matching per reel/ packing unit at 25 °C
Tolerance of R25
Please read Cautions and warnings and
Important notes at the end of this document.
Page 32 of 35
Superior series
Sensors
Limit temperature sensors, EIA sizes 0402, 0603 and 0805
T
t
TA
ta
TC
tE
TR
Tsense
Top
TPTC
tR
Tref
TRmin
tS
Tsurf
UCT
V or Vel
Vc(max)
VF,max
VRMS
VBD
Vins
Vlink,max
Vmax
Vmax,dyn
Vmeas
Vmeas,max
VR
VPTC
α
∆
δth
τth
λ
Superior series
Temperature
Time
Ambient temperature
Thermal threshold time
Ferroelectric Curie temperature
Settling time (for level sensors)
Rated temperature @ 25 °C or otherwise specified in the data sheet
Sensing temperature
Operating temperature
PTC temperature
Response time
Reference temperature
Temperature at minimum resistance
Switching time
Surface temperature
Upper category temperature
Voltage (with subscript only for distinction from volume)
Maximum DC charge voltage of the surge generator
Maximum voltage applied at fault conditions in protection mode
Root-mean-square value of voltage
Breakdown voltage
Insulation test voltage
Maximum link voltage
Maximum operating voltage
Maximum dynamic (short-time) operating voltage
Measuring voltage
Maximum measuring voltage
Rated voltage
Voltage drop across a PTC thermistor
Temperature coefficient
Tolerance, change
Dissipation factor
Thermal cooling time constant
Failure rate
Lead spacing (in mm)
Please read Cautions and warnings and
Important notes at the end of this document.
Page 33 of 35
Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application.
As a rule, we are either unfamiliar with individual customer applications or less familiar with
them than the customers themselves. For these reasons, it is always ultimately incumbent on
the customer to check and decide whether a product with the properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or
failure before the end of their usual service life cannot be completely ruled out in the
current state of the art, even if they are operated as specified. In customer applications
requiring a very high level of operational safety and especially in customer applications in
which the malfunction or failure of an electronic component could endanger human life or
health (e.g. in accident prevention or lifesaving systems), it must therefore be ensured by
means of suitable design of the customer application or other action taken by the customer
(e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by
third parties in the event of malfunction or failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our Material Data Sheets on the Internet (www.tdk-electronics.tdk.com/material). Should you have
any more detailed questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order. We also
reserve the right to discontinue production and delivery of products. Consequently, we
cannot guarantee that all products named in this publication will always be available. The
aforementioned does not apply in the case of individual agreements deviating from the foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to our General
Terms and Conditions of Supply.
Page 34 of 35
Important notes
7. Our manufacturing sites serving the automotive business apply the IATF 16949
standard. The IATF certifications confirm our compliance with requirements regarding the
quality management system in the automotive industry. Referring to customer requirements
and customer specific requirements (“CSR”) TDK always has and will continue to have the
policy of respecting individual agreements. Even if IATF 16949 may appear to support the
acceptance of unilateral requirements, we hereby like to emphasize that only requirements
mutually agreed upon can and will be implemented in our Quality Management System.
For clarification purposes we like to point out that obligations from IATF 16949 shall only
become legally binding if individually agreed upon.
8. The trade names EPCOS, CeraCharge, CeraDiode, CeraLink, CeraPad, CeraPlas, CSMP,
CTVS, DeltaCap, DigiSiMic, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell, MKD,
MKK, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PowerHap, PQSine,
PQvar, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV,
ThermoFuse, WindCap are trademarks registered or pending in Europe and
in other countries. Further information will be found on the Internet at
www.tdk-electronics.tdk.com/trademarks.
Release 2018-10
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