FeaturesApplications n Maximum Peak Power Dissipation: n High peak power applications (up to rated 7000 watts limits) n Meets ISO7637-2 / ISO16750-2 Surge n High temperature applications (up to rated S 3 M specification (varies by test condition) limits) 3 8 8 C S 0 A n RoHS compliant* n Clamping diode 9 n AEC-Q101 compliant** n Load switching and lighting SM8SF-Q Transient Voltage Suppressor Diode SeriesGeneral Information The Model SM8SF-Q Series TVS diodes are designed to provide overvoltage protection for sensitive electronics, meeting ISO7637-2 and ISO16750-2 requirements (varies by test condition). The Model SM8SF-Q Series offers a choice of Working Peak Reverse Voltages from 24 V to 36 V and Breakdown Voltage up to 40 V. The SM8SF-Q is available in a compact DFN package of 8.1 mm x 10.5 mm, with a low profile of just 1.3 mm, facilitating layout in today’s compact PCB designs. Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted)ParameterSymbolValueUnit Maximum Peak Pulse Power Dissipation (10/1000 µs) PPK 7000 W Power Dissipation with Infinite Heatsink (Tc = 25 °C) PD 5 W Operating Temperature Range TJ -55 to +175 °C Storage Temperature Range TSTG -55 to +175 °C Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted)WorkingMaximumMaximumMaximumUnidirectional DeviceBidirectional DeviceBreakdown VoltagePeakReverseReverseReverseVBR (Volts)ReverseLeakageVoltageSurgeVoltage@ VRWM@ IRSMCurrentPart No.MarkingPart No.Marking Min. Max. @ IT(mA)VRWM (V)IR ( μ A)VRSM (V)IRSM (A) SM8SF24A-Q 24A SM8SF24CA-Q 24CA 26.7 29.5 5 24 10 38.9 180 SM8SF28A-Q 28A SM8SF28CA-Q 28CA 31.1 34.4 5 28 10 45.4 154 SM8SF30A-Q 30A SM8SF30CA-Q 30CA 33.3 36.8 5 30 10 48.4 145 SM8SF33A-Q 33A SM8SF33CA-Q 33CA 36.7 40.6 5 33 10 53.3 131 SM8SF36A-Q 36A SM8SF36CA-Q 36CA 40.0 44.2 5 36 10 58.1 120 Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com www.bourns.comWARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. **”Q” part number suffix for automotive and other applications requiring appropriate AEC-Q101 compliance. 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 disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.