1SMB59 Series
3W SURFACE MOUNT ZENER DIODES
»Features
Low profile package.
Low Zener impedance.
High reliability chips
Halogen free and RoHS compliant
Lead-free finish
SMB(DO-214AA)
»General Description
CASE: SMB(DO-214AA) Molded Plastic
Mounting Position: Any
Polarity: cathodeby color band
Terminal: Solder plated
» Maximum Ratings @T =25℃ unless otherwise noted
A
Parameter
Symbol
Value
Units
PD
3
W
Thermal Resistance Junction To Ambient Air
RθJA
100
°C/W
Thermal Resistance Junction To Leads
RθJL
25
°C/W
Storage Temperature Range
TSTG
Power Dissipation @TL=75°C
Max Forward Voltage @IF=200MA
VF
Operating Junction Temperature Range
TJ
Revision 2018
www.born-tw.com
-55 to 150
1.2
-55 to 150
°C
V
°C
1 /5
1SMB59 Series
»Electrical Characteristics @T =25℃ unless otherwise noted
A
Part
Zener voltage
VZ /V
Number
Test
Dynamic
Knee
Knee
Reverse
Reverse
Max.DC
current
impedance
current
impedance
current
voltage
current
IZT
ZZT
IZK
ZZK
IR(Max.)
VR
IZM
Vz(MIN)
Vz(MAX)
m A
Ω
m A
Ω
µAdc
V
m A
1SMB5913B
3.135
3.465
113.6
10
1
500
100
1
454
1SMB5914B
3.42
3.78
104.2
9
1
500
75
1
416
1SMB5915B
3.705
4.095
96.1
7.5
1
500
25
1
384
1SMB5916B
4.085
4.515
87.2
6
1
500
5
1
348
1SMB5917B
4.465
4.935
79.8
5
1
500
5
1.5
319
1SMB5918B
4.845
5.355
73.5
4
1
350
5
2
294
1SMB5919B
5.32
5.88
66.9
2
1
250
5
3
267
1SMB5920B
5.89
6.51
60.5
2
1
200
5
4
241
1SMB5921B
6.46
7.14
55.1
2.5
1
200
5
5.2
220
1SMB5922B
7.125
7.875
50
3
0.5
400
5
6
200
1SMB5923B
7.79
8.61
45.7
3.5
0.5
400
5
6.5
182
1SMB5924B
8.645
9.555
41.2
4
0.5
500
5
7
164
1SMB5925B
9.5
10.5
37.5
4.5
0.25
500
5
8
150
1SMB5926B
10.45
11.55
34.1
5.5
0.25
550
1
8.4
136
1SMB5927B
11.4
12.6
31.2
6.5
0.25
550
1
9.1
125
1SMB5928B
12.35
13.65
28.8
7
0.25
550
1
9.9
115
1SMB5929B
14.25
15.75
25
9
0.25
600
1
11.4
100
1SMB5930B
15.2
16.8
23.4
10
0.25
600
1
12.2
93
1SMB5931B
17.1
18.9
20.8
12
0.25
650
1
13.7
83
1SMB5932B
19
21
18.7
14
0.25
650
1
15.2
75
1SMB5933B
20.9
23.1
17
17.5
0.25
650
1
16.7
68
1SMB5934B
22.8
25.2
15.6
19
0.25
700
1
18.2
62
1SMB5935B
25.65
28.35
13.9
23
0.25
700
1
20.6
55
1SMB5936B
28.5
31.5
12.5
28
0.25
750
1
22.8
50
1SMB5937B
31.35
34.65
11.4
33
0.25
800
1
25.1
45
1SMB5938B
34.2
37.8
10.4
38
0.25
850
1
27.4
41
1SMB5939B
37.05
40.95
9.6
45
0.25
900
1
29.7
38
1SMB5940B
40.85
45.15
8.7
53
0.25
950
1
32.7
34
1SMB5941B
44.65
49.35
8
67
0.25
1000
1
35.8
31
1SMB5942B
48.45
53.55
7.3
70
0.25
1100
1
38.8
29
1SMB5943B
53.2
58.8
6.7
86
0.25
1300
1
42.6
26
1SMB5944B
58.9
65.1
6
100
0.25
1500
1
47.1
24
Revision 2018
www.born-tw.com
2/5
1SMB59 Series
»Electrical Characteristics @T =25℃ unless otherwise noted
A
Part
Zener voltage
VZ /V
Number
Test
Dynamic
Knee
Knee
Reverse
Reverse
Max.DC
current
impedance
current
impedance
current
voltage
current
IZT
ZZT
IZK
ZZK
IR(Max.)
VR
IZM
Vz(MIN)
Vz(MAX)
m A
Ω
m A
Ω
µAdc
V
m A
1SMB5945B
64.6
71.4
5.5
120
0.25
1700
1
51.7
22
1SMB5946B
71.25
78.8
5
140
0.25
2000
1
56
20
1SMB5947B
77.9
86.1
4.6
160
0.25
2500
1
62.2
18
1SMB5948B
86.45
95.6
4.1
200
0.25
3000
1
69.2
16
1SMB5949B
95
105
3.7
250
0.25
3100
1
76
15
1SMB5950B
104.5
115.5
3.4
300
0.25
4000
1
83.6
13
1SMB5951B
114
126
3.1
380
0.25
4500
1
91.2
12
1SMB5952B
123.5
136.5
2.9
450
0.25
5000
1
98.8
11
1SMB5953B
142.5
157.5
2.5
600
0.25
6000
1
114
10
1SMB5954B
152
168
2.3
700
0.25
6500
1
121.6
9
1SMB5955B
171
189
2.1
900
0.25
7000
1
136.8
8
1SMB5956B
190
210
1.9
1200
0.25
8000
1
152
7
Revision 2018
www.born-tw.com
3 /5
1SMB59 Series
»Typical Performance Characteristics((TJ = 25 °C, unless otherwise noted))
Figure 1 Steady State Power Derating
Revision 2018
www.born-tw.com
4 /5
1SMB59 Series
»Package Information
SMB
B
D
A
C
F
H
L
G
Z
X
Y
SMB
Dimension
Revision 2018
Inches
Millimeters
MIN
NOM
MAX
MIN
NOM
MAX
A
0.134
0.144
0.155
3.4
3.67
3.94
B
0.205
0.213
0.22
5.21
5.4
5.59
C
0.075
0.079
0.083
1.9
2
2.1
D
0.169
0.185
4.3
4.7
F
0.006
0.012
0.152
0.305
G
H
L
X
Y
Z
0.085
0.03
0.008
0.096
0.06
2.15
0.76
0.203
2.45
1.52
0.091
0.11
0.079
0.079
www.born-tw.com
2.3
2.8
2
2
5 /5
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