SM8S10 thru SM8S43A
Automotive Transient Voltage Suppressors
FEATURES
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, per J-STD-020, LF maximum
peak of 245 °C
Component in accordance to RoHS 2002/95/EC
Dimensions in
inches and (millimeters)
0.413(10.5) 0.342(8.7)
0.374(9.5) 0.327(8.3)
DO-218AB
0.628(16.0)
0.592(15.0)
0.539(13.7)
0.524(13.3)
0.116(3.0)
0.093(2.4)
0.366(9.3)
0.343(8.7)
0.406(10.3)
0.382(9.7)
MECHANICAL DATA
Case:
DO-218AB
Molding compound meets UL 94 V-0 flammability
rating
Base P/NHE3 - RoHS compliant, high reliability/
automotive grade (AEC Q101 qualified)
Terminals:
Matte tin plated leads, solderable per
J-STD-002 and JESD22-B102
HE3 suffix meets JESD 201 class 2 whisker test
Polarity:
Heatsink is anode
0.197(5.0)
0.185(4.7)
LEAD 1
0.138(3.5)
0.098(2.5)
0.016 (0.4) Min.
0.028(0.7)
0.020(0.5)
0.098(2.5)
0.059(1.5)
LEAD 2/METAL HEATSINK
MAXIMUM RATINGS
(T
C
= 25 °C unless otherwise noted)
PARAMETER
Peak pulse power dissipation
with 10/1000 µs waveform
with 10/10 000 µs waveform
SYMBOL
P
PPM
P
D
I
PPM
I
FSM
T
J
, T
STG
VALUE
6600
5200
8.0
see next table
700
- 55 to + 175
UNIT
W
W
A
A
°C
Power dissipation on infinite heatsink at T
C
= 25 °C (Fig. 1)
Peak pulse current with 10/1000 µs waveform
(1)
Peak forward surge current 8.3 ms single half sine-wave
Operating junction and storage temperature range
Note:
(1) Non-repetitive current pulse derated above T
A
= 25 °C
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SM8S10 thru SM8S43A
ELECTRICAL CHARACTERISTICS
(T
C
= 25 °C unless otherwise noted)
DEVICE TYPE
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
STAND-
OFF
VOLTAGE
V
WM
(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
40
43
43
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
LEAKAGE
AT V
WM
T
J
= 175 °C
I
D
(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
MAX. PEAK
PULSE
CURRENT
AT 10/1000 µs
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
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
= 1.8 V at I
F
= 100 A measured on 8.3 ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per
minute maximum
THERMAL CHARACTERISTICS
(T
C
= 25 °C unless otherwise noted)
PARAMETER
Typical thermal resistance, junction to case
SYMBOL
R
θJC
VALUE
0.90
UNIT
°C/W
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SM8S10 thru SM8S43A
ORDERING INFORMATION
(Example)
PREFERRED P/N
SM8S10AHE3/2D
(1)
Note:
(1) Automotive grade AEC-Q101 qualified
UNIT WEIGHT (g)
2.605
PREFERRED PACKAGE CODE
2D
BASE QUANTITY
750
DELIVERY MODE
13" diameter paper tape and reel,
anode towards the sprocket hole
RATINGS AND CHARACTERISTICS CURVES
(T
A
= 25 °C unless otherwise noted)
8.0
150
t
r
= 10
µs
T
J
= 25 °C
Pulse
Width
(t
d
)
is defined as the Point
where
the Peak Current
decays to 50 % of I
PPM
Input Peak Pulse Current %
Power Dissipation (W)
6.0
100
Peak
Value
I
PPM
4.0
Half
Value
- I
PP
I
PPM
2
50
2.0
t
d
0
0
50
100
150
200
0
0
10
20
30
40
Case Temperature (°C)
t - Time (ms)
Figure 1. Power Derating Curve
Figure 3. Pulse Waveform
6000
10 000
4000
3000
2000
1000
0
25
50
75
100
125
150
175
Reverse Surge Power (W)
1000
10
100
5000
Load Dump Power (W)
Case Temperature (°C)
Figure 2. Load Dump Power Characteristics
(10 ms Exponential Waveform)
Figure 4. Reverse Power Capability
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SM8S10 thru SM8S43A
100
100 000
Transient Thermal Impedance (°C/W)
R
θ
JA
10
1
R
θ
JC
C
J
- Junction Capacitance (pF)
T
J
= 25 °C
f = 1.0 MHz
V
sig
= 50 mVp-p
10 000
Measured at Zero Bias
0.1
Measured at Stand-off
Voltage V
WM
1000
10
15
20
25
30
35
40
45
0.01
0.01
0.1
1
10
100
t - Pulse
Width
(s)
V
WM
- Reverse Stand-Off
Voltage
(V)
Figure 5. Typical Transient Thermal Impedance
Figure 6. Typical Junction Capacitance
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