Surface Mount Transient Voltage Suppressors
Revision In June 5, 2018
1 / 5
@ SOCAY Electronics Corp., Ltd. 2018
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
SM8E Series
SOCAY Electronics Corp., Ltd. www.socay.com
PRIMARY CHARACTERISTICS
V
R
20V to 43V
P
PPM
（
10/1000
）
μs
8000W
P
PPM
（10/10000）μs
6000W
P
D
8.5W
I
FSM
750A
T
Jmax
175℃
Polarity
Uni-directional
Package
DO-218AB
Junction passivation optimized design passivated anisotropic
rectifier technology
T
J
=175℃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 ISO16750-2 surge specification(varied by
testcondition)
Meets MSL-1, per J-STD-020, LF maximum peak of 245℃
AEC-Q101 qualified
Compliant to RoHS directive 2002/95/EC and in accordance
to WEEE 2002/96/EC
Use in sensitive electronics protection against voltage transients
induced by inductive load switching and lighting, especially for
automotive load dump protection application
Plastic pa
Case:DO-218B
Molding compound meets UL 94V-0 flammability rating
Base P/NHE3-RoHS-compliant, AEC-Q101 qualified
Terminals:Matte tin plated leads, solderable per J-STD-002 and
JESD22-B102
Parameter
Symbol
Value
Unit
Peak pulse power dissipation on 10/1000μs waveform
P
PPM
8000
Watts
Peak pulse power dissipation on 10/10000μs waveform
6000
Watts
Power dissipation on infinite heat sink at T
C
=25℃
P
D
8.5
Watts
Peak pulse current with 10/1000μs waveform
I
PPM
(1)
See next table
Amps
Peak forward surge current, 8.3ms single half sine-wave
I
FSM
750
Amps
Operating junction and storage temperature range
T
J
,T
STG
-55 to+175
℃
Typical thermal resistance, junction to case
R
θJC
0.9
℃/W
Note
(1) Non-repetitive current pulse derated above T
A
=25℃
Features
Typlcal Applicatioms
Mechanical Data
Maximum Ratings（T
C
=25℃，RH=45%-75%，unless otherwise noted）
Surface Mount Transient Voltage Suppressors
Revision In June 5, 2018
2 / 5
@ SOCAY Electronics Corp., Ltd. 2018
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
SM8E Series
SOCAY Electronics Corp., Ltd. www.socay.com
Part Number
V
R
I
T
I
R
@V
R
V
BR
@I
T
VC@I
PP
I
PP
Uni-polar
V
mA
μA@25°C
μA@175°C
Min(V)
Max (V)
V
A
SM8E20A
20.0
5
5
150
22.2
24.5
32.4
247
SM8E22A
22.0
5
5
150
24.4
26.9
35.5
225
SM8E24A
24.0
5
5
150
26.7
29.5
38.9
205
SM8E26A
26.0
5
5
150
28.9
31.9
42.1
190
SM8E28A
28.0
5
5
150
31.1
34.4
45.4
176
SM8E30A
30.0
5
5
150
33.3
36.8
48.4
165
SM8E32A
32.0
5
5
150
35.5
39.4
51.4
156
SM8E33A
33.0
5
5
150
36.7
40.6
53.3
150
SM8E36A
36.0
5
5
150
40.0
44.2
58.1
138
SM8E40A
40.0
5
5
150
44.4
49.1
64.5
124
SM8E43A
43.0
5
5
150
47.8
52.8
69.4
115
Note:
1.For all types maximum V
F
=1.8V at I
F
=100A measured on 8.3ms single half sine-wave or equivalent square wave,
duty cycle=4 pulses per minute maximum.
2.Surge waveform: 10/1000μS
V
R
:Stand-off voltage -- Maximum voltage that can be applied
V
BR
:Breakdown voltage
V
C
:Clamping voltage -- Peak voltage measured across the suppressor at a specified I
PP
I
R
:Reverse leakage current
I
T
: Test current
Electrical Characteristics
Ordering Information