SM8SF-Q Transient Voltage Suppressor Diode SeriesPerformance GraphsLoad Dump Power CharacteristicsPeak Pulse Power Derating Curve 6000 10000 5000 5000 4000 3000 2000 Load Dump Power (W) 1000 Reverse Surge Power (W) 025 50 75 100 125 150 175 10001 10 100 Case Temperature, Tc (°C) Pulse Width (ms) ISO 7637-2: Pulse 5a, Single Pulse: SM8SF-24A-QISO 7637-2: Pulse 5a, Single Pulse: SM8SF-33A-Q 0.0 0 0.5 1 td = 40 ms 1.0 2 1.5 3 td = 100 ms 2.0 (Ohms) 4 i (Ohms) i R R 2.5 5 td = 200 ms 3.0 6 td = 200 ms 3.5 7 t 4.0 d = 400 ms 8 79 81 83 85 87 89 91 93 95 97 99 100 150 155 160 165 170 175 180 185 190 195 200 Us (Volts) Us (Volts) Power Dissipation 8 6 4 2 Power Dissipation (W) Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal 0 disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/ 25 50 75 100 125 150 175 legal/disclaimer.pdf. Case Temperature, Tc (°C)