UNSEMI SM8S12

Surface Mount Transient Voltage Suppressors (TVS)
SM8S Series
10 To 43 V
6600W
Description
The SM8S series is designed specifically to protect sensitive
electronic equipment from voltage transients induced by lightning
and other transient voltage events.
Features
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Junction passivation optimized design passivated anisotropic
rectifier technology
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TJ=175°C capability suitable for high reliability and automotive
requirement
DO-218AB
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Available in uni-directional polarity only
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Low leakage current
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Low forward voltage drop
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High surge capability
Functional Diagram
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Meets ISO7637-2 surge specification (varied by test condition)
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Meets MSL level 1,
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AEC-Q101 qualified
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Compliant to RoHS Directive 2002/95/EC and in accordance
per J-STD-020,
LF maximum peak of
Cathode
Anode
245 °C
Uni-direction
to WEEE 2002/96/EC
Primary Characteristics
VWM
10V to 43V
PPPM (10/1000µs)
6600W
PPPM (10 /10000μs)
5200W
PD
8W
IFSM
700A
TJ max.
175°C
Applications
Use in sensitive electronics protection against voltage transients
induced by inductive load switching and lighting, especially for
automotive load dump protection application.
Maximum Ratings and Thermal Characteristics (TA=25℃ unless otherwise noted)
Parameter
Symbol
with 10/1000µs waveform
Value
Unit
6600
Peak Pulse Power Dissipation
PPPM
with 10/10000µs waveform
Watts
5200
Power Dissipation on Infinite Heat Sink at TA=25°C (Fig.1)
Peak Pulse Current with a 10/1000µs waveform
Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3)
Operating junction and Storage Temperature Range
Typical thermal resistance, junction to case
PD
8.0
Watt
IPPM(1)
See Next Table
Amps
IFSM
700
Amps
TJ , TSTG
- 55 to + 175
°C
R θJC
0.90
°C /Watt
Notes:
1. Non-repetitive current pulse derated above TA=25°C
UN Semiconductor Co., Ltd.
Revision October 18, 2013
www.unsemi.com.tw
1/4
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SM8S Series
10 To 43 V
6600W
Electrical Characteristics (TA=25℃ unless otherwise noted)
Part Number
Breakdown
Voltage
VBR (V)
Stand-Off
Voltage
VMW
(V)
MIN.
MAX.
Test
Current
IT
(mA)
Maximum
Reverse
Leakage
at VWM
ID(µA)
Maximum
Reverse
at VWM
TJ=175°C
ID(µA)
Maximum Peak
Pulse Current
at 10/1000µs
Waveform
(A)
Maximum
Clamping
Voltage
at IPPM
VC (V)
SM8S10
10.0
11.1
13.6
5.0
15
250
351
18.8
SM8S10A
10.0
11.1
12.3
5.0
15
250
388
17.0
SM8S11
11.0
12.2
14.9
5.0
10
150
328
20.1
SM8S11A
11.0
12.2
13.5
5.0
10
150
363
18.2
SM8S12
12.0
13.3
16.3
5.0
10
150
300
22.0
SM8S12A
12.0
13.3
14.7
5.0
10
150
332
19.9
SM8S13
13.0
14.4
17.6
5.0
10
150
277
23.8
SM8S13A
13.0
14.4
15.9
5.0
10
150
307
21.5
SM8S14
14.0
15.6
19.1
5.0
10
150
256
25.8
SM8S14A
14.0
15.6
17.2
5.0
10
150
284
23.2
SM8S15
15.0
16.7
20.4
5.0
10
150
245
26.9
SM8S15A
15.0
16.7
18.5
5.0
10
150
270
24.4
SM8S16
16.0
17.8
21.8
5.0
10
150
229
28.8
SM8S16A
16.0
17.8
19.7
5.0
10
150
254
26.0
SM8S17
17.0
18.9
23.1
5.0
10
150
216
30.5
SM8S17A
17.0
18.9
20.9
5.0
10
150
239
27.6
SM8S18
18.0
20.0
24.4
5.0
10
150
205
32.2
SM8S18A
18.0
20.0
22.1
5.0
10
150
226
29.2
SM8S20
20.0
22.2
27.1
5.0
10
150
184
35.8
SM8S20A
20.0
22.2
24.5
5.0
10
150
204
32.4
SM8S22
22.0
24.4
29.8
5.0
10
150
168
39.4
SM8S22A
22.0
24.4
26.9
5.0
10
150
186
35.5
SM8S24
24.0
26.7
32.6
5.0
10
150
153
43.0
SM8S24A
24.0
26.7
29.5
5.0
10
150
170
38.9
SM8S26
26.0
28.9
35.3
5.0
10
150
142
46.6
SM8S26A
26.0
28.9
31.9
5.0
10
150
157
42.1
SM8S28
28.0
31.1
38.0
5.0
10
150
132
50.1
SM8S28A
28.0
31.1
34.4
5.0
10
150
145
45.4
SM8S30
30.0
33.3
40.7
5.0
10
150
123
53.5
SM8S30A
30.0
33.3
36.8
5.0
10
150
136
48.4
SM8S33
33.0
36.7
44.9
5.0
10
150
112
59.0
SM8S33A
33.0
36.7
40.6
5.0
10
150
124
53.3
SM8S36
36.0
40.0
48.9
5.0
10
150
103
64.3
SM8S36A
36.0
40.0
44.2
5.0
10
150
114
58.1
SM8S40
40.0
44.4
54.3
5.0
10
150
92.4
71.4
SM8S40A
40.0
44.4
49.1
5.0
10
150
102
64.5
SM8S43
43.0
47.8
58.4
5.0
10
150
86
76.7
SM8S43A
43.0
47.8
52.8
5.0
10
150
95.1
69.4
Note:
For all types maximum VF = 1.8V at IF = 100A measured on 8.3 ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per
minute maximum.
UN Semiconductor Co., Ltd.
Revision October 18, 2013
www.unsemi.com.tw
2/4
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SM8S Series
10 To 43 V
6600W
Ratings and Characteristic Curves (TA=25°C unless otherwise noted)
Figure 1 – Power Derating Curve
Figure 2 - Load Dump Power Characteristics
(10 ms Exponential Waveform)
Figure 3 - Pulse Waveform
Figure 4 – Reverse Power Capability
Figure 5 - Typical Transient Thermal Impedance
Figure 6 - Typical Junction Capacitance
UN Semiconductor Co., Ltd.
Revision October 18, 2013
www.unsemi.com.tw
3/4
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SM8S Series
10 To 43 V
6600W
Mechanical Data
Case
DO-218AB Molding compound meets UL 94 V-0 flammability
rating Base P/N HE3 - RoHS compliant, AEC-Q101 qualified
Polarity
Heat sink is anode
Terminal
Matte tin plated leads, solderable per J-STD-002 and JESD
22-B102
HE3 suffix meets JESD 201 class 2 whisker test
Part Numbering
SM8S×××A
5% VBR VOLTAGE TOLERANCE
VR VOLTAGE
SERIES
Ordering Information (Example)
Preferred P/N
Unit Weight (g)
Preferred Package Code
Base Quantity
Delivery Mode
2.605
2D
750
13" diameter plastic tape and reel,
anode towards the sprocket hole
(1)
SM8S10AHE3/2D
Note:
(1) AEC-Q101 qualified
Package Outline Dimensions Unit: inches (millimeters)
UN Semiconductor Co., Ltd.
Revision October 18, 2013
www.unsemi.com.tw
4/4
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.