Surface Mount Transient Voltage Suppressors (TVS)
SM8S Series
Description
The SM8S series is designed specifically to protect sensitive
electronic equipment from voltage transients induced by lightning
and other transient voltage events.
10 To 43 V
6600W
Features
u
u
u
u
u
u
u
u
u
u
Junction passivation optimized design passivated anisotropic
rectifier technology
T
J
=175°C capability suitable for high reliability and automotive
requirement
Available in uni-directional polarity only
Low leakage current
Low forward voltage drop
High surge capability
Meets ISO7637-2 surge specification (varied by test condition)
Meets MSL level 1,
245
°C
AEC-Q101 qualified
Compliant to RoHS Directive 2002/95/EC and in accordance
to WEEE 2002/96/EC
Uni-direction
per J-STD-020,
LF maximum peak of
Cathode
Anode
DO-218AB
Functional Diagram
Primary Characteristics
VWM
P
PPM
(10/1000µs)
P
PPM
(10 /10000μs)
P
D
I
FSM
T
J
max.
10V to 43V
6600W
5200W
8W
700A
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 (T
A
=25℃ unless otherwise noted)
Parameter
with 10/1000µs waveform
Peak Pulse Power Dissipation
with 10/10000µs waveform
Power Dissipation on Infinite Heat Sink at T
A
=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
P
D
I
PPM(1)
I
FSM
T
J
, T
STG
R
θJC
P
PPM
5200
8.0
See Next Table
700
- 55 to + 175
0.90
Watt
Amps
Amps
°C
°C
/Watt
Symbol
Value
6600
Unit
Watts
Notes:
1. Non-repetitive current pulse derated above T
A
=25°C
SOCAY Electronics Co., Ltd.
Revision February 21, 2014
www.socay.com
1/4
@ SOCAY Electronics Co., Ltd. 2014
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SM8S Series
10 To 43 V
6600W
Electrical Characteristics (T
A
=25℃ unless otherwise noted)
Stand-Off
Voltage
V
MW
(V)
10.0
10.0
11.0
11.0
12.0
12.0
13.0
13.0
14.0
14.0
15.0
15.0
16.0
16.0
17.0
17.0
18.0
18.0
20.0
20.0
22.0
22.0
24.0
24.0
26.0
26.0
28.0
28.0
30.0
30.0
33.0
33.0
36.0
36.0
40.0
40.0
43.0
43.0
Breakdown
Voltage
V
BR
(V)
MIN.
11.1
11.1
12.2
12.2
13.3
13.3
14.4
14.4
15.6
15.6
16.7
16.7
17.8
17.8
18.9
18.9
20.0
20.0
22.2
22.2
24.4
24.4
26.7
26.7
28.9
28.9
31.1
31.1
33.3
33.3
36.7
36.7
40.0
40.0
44.4
44.4
47.8
47.8
MAX.
13.6
12.3
14.9
13.5
16.3
14.7
17.6
15.9
19.1
17.2
20.4
18.5
21.8
19.7
23.1
20.9
24.4
22.1
27.1
24.5
29.8
26.9
32.6
29.5
35.3
31.9
38.0
34.4
40.7
36.8
44.9
40.6
48.9
44.2
54.3
49.1
58.4
52.8
Test
Current
I
T
(mA)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Maximum
Reverse
Leakage
at V
WM
I
D
(µA)
15
15
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
Maximum
Reverse
at V
WM
T
J
=175°C
ID(µA)
250
250
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
Maximum Peak
Pulse Current
at 10/1000µs
Waveform
(A)
351
388
328
363
300
332
277
307
256
284
245
270
229
254
216
239
205
226
184
204
168
186
153
170
142
157
132
145
123
136
112
124
103
114
92.4
102
86
95.1
Maximum
Clamping
Voltage
at I
PPM
V
C
(V)
18.8
17.0
20.1
18.2
22.0
19.9
23.8
21.5
25.8
23.2
26.9
24.4
28.8
26.0
30.5
27.6
32.2
29.2
35.8
32.4
39.4
35.5
43.0
38.9
46.6
42.1
50.1
45.4
53.5
48.4
59.0
53.3
64.3
58.1
71.4
64.5
76.7
69.4
Part Number
SM8S10
SM8S10A
SM8S11
SM8S11A
SM8S12
SM8S12A
SM8S13
SM8S13A
SM8S14
SM8S14A
SM8S15
SM8S15A
SM8S16
SM8S16A
SM8S17
SM8S17A
SM8S18
SM8S18A
SM8S20
SM8S20A
SM8S22
SM8S22A
SM8S24
SM8S24A
SM8S26
SM8S26A
SM8S28
SM8S28A
SM8S30
SM8S30A
SM8S33
SM8S33A
SM8S36
SM8S36A
SM8S40
SM8S40A
SM8S43
SM8S43A
Note:
For all types maximum V
F
= 1.8V at I
F
= 100A measured on 8.3 ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per
minute maximum.
SOCAY Electronics Co., Ltd.
Revision February 21, 2014
www.socay.com
2/4
@ SOCAY Electronics Co., Ltd. 2014
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SM8S Series
10 To 43 V
6600W
Ratings and Characteristic Curves (T
A
=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
SOCAY Electronics Co., Ltd.
Revision February 21, 2014
www.socay.com
3/4
@ SOCAY Electronics Co., Ltd. 2014
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Transient Voltage Suppressors (TVS)
SM8S Series
Mechanical Data
Case
Polarity
Terminal
DO-218AB Molding compound meets UL 94 V-0 flammability
rating Base P/N HE3 - RoHS compliant, AEC-Q101 qualified
Heat sink is anode
Matte tin plated leads, solderable per J-STD-002 and JESD
22-B102
HE3 suffix meets JESD 201 class 2 whisker test
10 To 43 V
6600W
Part Numbering
Part Marking
SM8S
×××
A
Socay Logo
5% V
BR
VOLTAGE TOLERANCE
V
R
VOLTAGE
SERIES
Series
SM8S
XXX
V
R
Voltage
Packaging
Part Number
SM8SXXXA
Component Package
DO-218AB
Quantity
500
Packaging Option
13" diameter plastic tape and reel,
anode towards the sprocket hole
Package Outline Dimensions
Unit: inches (millimeters)
SOCAY Electronics Co., Ltd.
Revision February 21, 2014
www.socay.com
4/4
@ SOCAY Electronics Co., Ltd. 2014
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
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