SM8S10 Datasheet, PDF (2/4 Pages) Vishay Siliconix – Surface Mount Automotive Transient Voltage Suppressors

Z ibo Seno Electronic Engineering Co., Ltd.
SM8 S10 - SM8 S40A ^HF
RATINGS AND CHARACTERISTICS CURVES
(TA = 25 °C unless otherwise noted)
8.0
6000
6.0
4.0
2.0
0
0
50
100
150
200
Case Temperature (°C)
Figure 1. Power Derating Curve
150
t_r = 10 µs
T_J = 25 °C
Pulse Width (t_d)
is defined as the Point
Peak Value
where the Peak Current
100
I_PPM
decays to 50 % of I_PPM
Half Value - I_PP
I_PPM
2
50
5000
4000
3000
2000
1000
0
25
50
75
100
125
150
175
Case Temperature (°C)
Figure 2. Load Dump Power Characteristics
(10 ms Exponential Waveform)
10 000
t_d
0
0
10
20
30
40
t - Time (ms)
Figure 3. Pulse Waveform
100
R _{θ JA}
10
R _{θ JC}
1
0.1
0.01
0.01
0.1
1
10
100
t - Pulse Width (s)
Figure 5. Typical Transient Thermal Impedance
1000
10
100
Pulse Width (ms) - ½ I_PP Exponential Waveform
Figure 4. Reverse Power Capability
100 000
T_J = 25 °C
f = 1.0 MHz
V_sig = 50 mVp-p
10 000
Measured at Zero Bias
Measured at Stand-off
Voltage V_WM
1000
10 15 20 25 30 35 40 45
V_WM - Reverse Stand-Off Voltage (V)
Figure 6. Typical Junction Capacitance
P_PPM
V_RWM
V_BR
V_C
I_R
V_F
Peak Pulse Power Dissipation - Max power dissipation
Reverse Stand-off Voltage - Maximum voltage that can be applied to TVS without operation
Breakdown Voltage – Maximum voltage that flows though the TVS at a specified current (I_T)
Clamping Voltage – Peak voltage measured across the TVS at a specified I_PPM (peak impulse current)
Reverse Leakage Current – Current measured at V_R
Forward Voltage Drop for Uni-directional
SM8 S10 - SM8 S40A
2 of 4
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