DATA SHEET
www.onsemi.com
3 Watt Plastic
Surface Mount
Zener Voltage Regulators
PLASTIC SURFACE MOUNT
ZENER VOLTAGE
REGULATOR DIODES
3.3−200 V, 3 W DC POWER
1SMB59xxBT3G Series,
SZ1SMB59xxT3G Series
This complete new line of 3 W Zener diodes offers the following
advantages.
SMB
CASE 403A
PLASTIC
Features
•
•
•
•
•
•
•
Zener Voltage Range − 3.3 V to 200 V
ESD Rating of Class 3 (> 16 kV) per Human Body Model
Flat Handling Surface for Accurate Placement
Package Design for Top Side or Bottom Circuit Board Mounting
AEC−Q101 Qualified and PPAP Capable − SZ1SMB59xxT3G
SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements
These are Pb−Free Devices*
Cathode
Anode
MARKING DIAGRAM
AYWW
9xxB G
G
Mechanical Characteristics:
CASE: Void-free, transfer-molded plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
LEADS: Modified L−Bend providing more contact area to bond pads
POLARITY: Cathode indicated by polarity band
FLAMMABILITY RATING: UL 94 V−0
MAXIMUM RATINGS
Rating
Maximum Steady State Power
Dissipation @ TL = 75°C
Measured at Zero Lead Length
Derate Above 75°C
Thermal Resistance from Junction−to−Lead
Maximum Steady State Power
Dissipation @ TA = 25°C (Note )
Derate Above 25°C
Thermal Resistance from
Junction−to−Ambient
Operating and Storage Temperature Range
Symbol
Value
Unit
A
Y
WW
9xxB
G
= Assembly Location
= Year
= Work Week
= Device Code (Refer to page 3)
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Package
Shipping†
1SMB59xxBT3G
SMB
(Pb−Free)
2,500 /
Tape & Reel
SMB
(Pb−Free)
2,500 /
Tape & Reel
Device
PD
3.0
W
RqJL
40
25
mW/°C
°C/W
SZ1SMB59xxBT3G
550
4.4
226
mW
mW/°C
°C/W
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
−65 to
+150
°C
PD
RqJA
TJ, Tstg
DEVICE MARKING INFORMATION
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
1. FR−4 board, using recommended footprint.
See specific marking information in the device marking
column of the Electrical Characteristics table on page 3 of
this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the onsemi Soldering and Mounting Techniques Reference Manual,
SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2016
August, 2021 − Rev. 10
1
Publication Order Number:
1SMB5913BT3/D
1SMB59xxBT3G Series, SZ1SMB59xxT3G Series
ELECTRICAL CHARACTERISTICS
(TL = 30°C unless otherwise noted,
VF = 1.5 V Max. @ IF = 200 mA(dc) for all types)
I
Parameter
Symbol
VZ
Reverse Zener Voltage @ IZT
IZT
Reverse Current
ZZT
Maximum Zener Impedance @ IZT
IZK
Reverse Current
ZZK
Maximum Zener Impedance @ IZK
IR
Reverse Leakage Current @ VR
VR
Reverse Voltage
IF
Forward Current
VF
Forward Voltage @ IF
IZM
Maximum DC Zener Current
IF
VZ VR
IR VF
IZT
Zener Voltage Regulator
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2
V
1SMB59xxBT3G Series, SZ1SMB59xxT3G Series
ELECTRICAL CHARACTERISTICS (TL = 30°C unless otherwise noted, VF = 1.5 V Max. @ IF = 200 mA(dc) for all types)
(Devices listed in bold, italic are onsemi Preferred devices.)
Zener Voltage (Note 3)
Device*
(Note 2)
VZ (Volts)
Zener Impedance (Note 4)
@ IZT
ZZT @ IZT
Leakage Current
ZZK @ IZK
IR @ VR
IZM
Device
Marking
Min
Nom
Max
mA
W
W
mA
mA
Volts
mA(dc)
1SMB5913BT3G
1SMB5914BT3G
1SMB5915BT3G
1SMB5916BT3G
913B
914B
915B
916B
3.13
3.42
3.70
4.08
3.3
3.6
3.9
4.3
3.47
3.78
4.10
4.52
113.6
104.2
96.1
87.2
10
9
7.5
6
500
500
500
500
1
1
1
1
100
75
25
5
1
1
1
1
454
416
384
348
1SMB5917BT3G
1SMB5918BT3G
1SMB5919BT3G
1SMB5920BT3G
917B
918B
919B
920B
4.46
4.84
5.32
5.89
4.7
5.1
5.6
6.2
4.94
5.36
5.88
6.51
79.8
73.5
66.9
60.5
5
4
2
2
500
350
250
200
1
1
1
1
5
5
5
5
1.5
2
3
4
319
294
267
241
1SMB5921BT3G
1SMB5922BT3G
1SMB5923BT3G
1SMB5924BT3G
921B
922B
923B
924B
6.46
7.12
7.79
8.64
6.8
7.5
8.2
9.1
7.14
7.88
8.61
9.56
55.1
50
45.7
41.2
2.5
3
3.5
4
200
400
400
500
1
0.5
0.5
0.5
5
5
5
5
5.2
6
6.5
7
220
200
182
164
1SMB5925BT3G
1SMB5926BT3G
1SMB5927BT3G
1SMB5928BT3G
925B
926B
927B
928B
9.5
10.45
11.4
12.35
10
11
12
13
10.5
11.55
12.6
13.65
37.5
34.1
31.2
28.8
4.5
5.5
6.5
7
500
550
550
550
0.25
0.25
0.25
0.25
5
1
1
1
8
8.4
9.1
9.9
150
136
125
115
1SMB5929BT3G
1SMB5930BT3G
1SMB5931BT3G
1SMB5932BT3G
929B
930B
931B
932B
14.25
15.2
17.1
19
15
16
18
20
15.75
16.8
18.9
21
25
23.4
20.8
18.7
9
10
12
14
600
600
650
650
0.25
0.25
0.25
0.25
1
1
1
1
11.4
12.2
13.7
15.2
100
93
83
75
1SMB5933BT3G
1SMB5934BT3G
1SMB5935BT3G
1SMB5936BT3G
933B
934B
935B
936B
20.9
22.8
25.65
28.5
22
24
27
30
23.1
25.2
28.35
31.5
17
15.6
13.9
12.5
17.5
19
23
28
650
700
700
750
0.25
0.25
0.25
0.25
1
1
1
1
16.7
18.2
20.6
22.8
68
62
55
50
1SMB5937BT3G
1SMB5938BT3G
1SMB5939BT3G
1SMB5940BT3G
937B
938B
939B
940B
31.35
34.2
37.05
40.85
33
36
39
43
34.65
37.8
40.95
45.15
11.4
10.4
9.6
8.7
33
38
45
53
800
850
900
950
0.25
0.25
0.25
0.25
1
1
1
1
25.1
27.4
29.7
32.7
45
41
38
34
1SMB5941BT3G
1SMB5942BT3G
1SMB5943BT3G
1SMB5944BT3G
941B
942B
943B
944B
44.65
48.45
53.2
58.9
47
51
56
62
49.35
53.55
58.8
65.1
8
7.3
6.7
6
67
70
86
100
1000
1100
1300
1500
0.25
0.25
0.25
0.25
1
1
1
1
35.8
38.8
42.6
47.1
31
29
26
24
1SMB5945BT3G
1SMB5946BT3G
1SMB5947BT3G
1SMB5948BT3G
945B
946B
947B
948B
64.6
71.25
77.9
86.45
68
75
82
91
71.4
78.75
86.1
95.55
5.5
5
4.6
4.1
120
140
160
200
1700
2000
2500
3000
0.25
0.25
0.25
0.25
1
1
1
1
51.7
56
62.2
69.2
22
20
18
16
1SMB5949BT3G
1SMB5951BT3G
1SMB5952BT3G
949B
951B
952B
95
114
123.5
100
120
130
105
126
136.5
3.7
3.1
2.9
250
380
450
3100
4500
5000
0.25
0.25
0.25
1
1
1
76
91.2
98.8
15
12
11
1SMB5953BT3G
1SMB5954BT3G
1SMB5955BT3G
1SMB5956BT3G
953B
954B
955B
956B
142.5
152
171
190
150
160
180
200
157.5
168
189
210
2.5
2.3
2.1
1.9
600
700
900
1200
6000
6500
7000
8000
0.25
0.25
0.25
0.25
1
1
1
1
114
121.6
136.8
152
10
9
8
7
2. TOLERANCE AND TYPE NUMBER DESIGNATION The type numbers listed indicate a tolerance of ±5%.
3. ZENER VOLTAGE (VZ) MEASUREMENT
Nominal Zener voltage is measured with the device junction in thermal equilibrium with ambient temperature at 25°C.
4. ZENER IMPEDANCE (ZZ) DERIVATION ZZT and ZZK are measured by dividing the ac voltage drop across the device by the ac current
applied. The specified limits are for IZ(ac) = 0.1 IZ(dc) with the ac frequency = 60 Hz.
*Include SZ-prefix devices where applicable.
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3
1SMB59xxBT3G Series, SZ1SMB59xxT3G Series
P D, MAXIMUM POWER DISSIPATION (WATTS)
6
PPK , PEAK SURGE POWER (WATTS)
1K
5
4
TL
3
2
1
TA
0
0
25
50
75
100
T, TEMPERATURE (°C)
125
RECTANGULAR
NONREPETITIVE
WAVEFORM
TJ=25°C PRIOR
TO INITIAL PULSE
500
300
200
100
50
30
20
10
0.1
150
0.2 0.3 0.5
10
8
VZ @ IZT
6
4
2
0
-2
-4
2
4
6
8
VZ, ZENER VOLTAGE (VOLTS)
10
12
VZ @ IZT
100
70
50
30
20
10
10
20
30
50
70
100
VZ, ZENER VOLTAGE (VOLTS)
200
Figure 4. Zener Voltage − 14 To 200 Volts
100
100
50
30
20
50
30
20
IZT, REVERSE CURRENT (mA)
IZT, REVERSE CURRENT (mA)
100
200
Figure 3. Zener Voltage − To 12 Volts
10
5
3
2
1
0.5
0.3
0.2
0.1
2 3
5
10 20 30 50
PW, PULSE WIDTH (ms)
Figure 2. Maximum Surge Power
θVZ , TEMPERATURE COEFFICIENT (mV/ °C)
θVZ , TEMPERATURE COEFFICIENT (mV/ °C)
Figure 1. Steady State Power Derating
1
10
5
3
2
1
0.5
0.3
0.2
0.1
0
1
2
3
4
5
6
7
VZ, ZENER VOLTAGE (VOLTS)
8
9
0
10
10
20
30
40
50
60
70
VZ, ZENER VOLTAGE (VOLTS)
80
Figure 6. VZ = 12 thru 82 Volts
Figure 5. VZ = 3.3 thru 10 Volts
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4
90
100
1SMB59xxBT3G Series, SZ1SMB59xxT3G Series
200
1k
IZ(dc) = 1mA
Z Z , DYNAMIC IMPEDANCE (OHMS)
Z Z , DYNAMIC IMPEDANCE (OHMS)
30
20
10mA
10
7
5
3
2
20mA
5
7
10
TJ = 25°C
iZ(rms) = 0.1 IZ(dc)
500
100
70
50
iZ(rms) = 0.1 IZ(dc)
20
30
50
VZ, ZENER VOLTAGE (VOLTS)
70
200
VZ =150V
100
91V
50
62V
20
10
5
22V
2
12V
1
0.5
100
1
2
Figure 7. Effect of Zener Voltage
5
10
20
50
100
IZ, ZENER TEST CURRENT (mA)
200
6.8V
500
Figure 8. Effect of Zener Current
Rating and Typical Characteristic Curves (TA = 25°C)
1000
10
MEASURED @
VZ/2
100
NONREPETITIVE, EXPONENTIAL
PULSE WAVEFORM, TJ = 25°C
Ppk , PEAK POWER (kW)
C, CAPACITANCE (pF)
MEASURED @
ZERO BIAS
1
0.1
TJ = 25°C
10
0.01
10
BREAKDOWN VOLTAGE (VOLTS)
100
0.01
Figure 9. Capacitance Curve
10
Figure 10. Typical Pulse Rating Curve
120
120
TA = 25°C
PW (ID) IS DEFINED AS THE
POINT WHERE THE PEAK CURRENT
DECAYS TO 50% OF Ipp.
100
PEAK VALUE
Ippm
80
60
0.9 IPEAK
HALF VALUE - Ipp/2
40
10/1000 ms WAVEFORM
AS DEFINED BY R.E.A.
20
8/20 ms WAVEFORM
AS DEFINED BY ANSI C62.1
AND IEC 801-5.
100
CURRENT (%)
≤ 10 ms
Ippm, PEAK PULSE
Ippm, PEAK PULSE CURRENT (%)
0.1
1
TP, PULSE WIDTH (ms)
80
60
0.5 IPEAK
40
20
td
T = 8 ms
0.1 IPEAK
0
0
1
2
3
t, TIME (ms)
4
0
5
0
0.02
T
20 ms
Figure 11. Pulse Waveform
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5
0.04
0.06
t, TIME (ms)
0.08
Figure 12. Pulse Waveform
0.1
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
SMB
CASE 403A−03
ISSUE J
SCALE 1:1
DATE 19 JUL 2012
SCALE 1:1
Polarity Band
Non−Polarity Band
HE
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION b SHALL BE MEASURED WITHIN DIMENSION L1.
E
b
DIM
A
A1
b
c
D
E
HE
L
L1
D
POLARITY INDICATOR
OPTIONAL AS NEEDED
A
L
L1
c
MIN
1.95
0.05
1.96
0.15
3.30
4.06
5.21
0.76
MILLIMETERS
NOM
MAX
2.30
2.47
0.10
0.20
2.03
2.20
0.23
0.31
3.56
3.95
4.32
4.60
5.44
5.60
1.02
1.60
0.51 REF
MIN
0.077
0.002
0.077
0.006
0.130
0.160
0.205
0.030
INCHES
NOM
0.091
0.004
0.080
0.009
0.140
0.170
0.214
0.040
0.020 REF
MAX
0.097
0.008
0.087
0.012
0.156
0.181
0.220
0.063
GENERIC
MARKING DIAGRAM*
A1
SOLDERING FOOTPRINT*
2.261
0.089
AYWW
XXXXXG
G
AYWW
XXXXXG
G
Polarity Band
Non−Polarity Band
XXXXX = Specific Device Code
A
= Assembly Location
Y
= Year
WW
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
2.743
0.108
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “ G”,
may or may not be present.
2.159
0.085
SCALE 8:1
mm Ǔ
ǒinches
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
DOCUMENT NUMBER:
DESCRIPTION:
98ASB42669B
SMB
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
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