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The Vishay Siliconix Si4931DY-T1-E3 is a dual P-channel MOSFET in an SO-8 package. It features a -12 V drain-source voltage and a maximum continuous drain current of -8.9 A at 25 °C. The on-state resistance is 0.018 Ω at VGS = -4.5 V, with a gate threshold voltage ranging from -0.4 V to -1.0 V. Total gate charge is typically 34.5 nC, and the device supports a junction temperature range of -55 °C to +150 °C.
Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm RoHS compliance status through authorized distributors or direct manufacturer channels. Ensure ordering suffixes match exact lead-free requirements for your specific assembly processes.
Evaluate thermal management requirements based on the specified junction-to-ambient resistance values. Verify that the gate drive voltage meets the minimum threshold for optimal on-state resistance performance. Consider the maximum pulsed drain current limits when designing circuits subject to transient load conditions.
This component belongs to the Si4931DY series manufactured by Vishay Siliconix. It utilizes TrenchFET technology within an SO-8 surface-mount package. The product line focuses on providing efficient power switching solutions with advanced cell density characteristics.
Si4931DY-T1-GE3 serves as a verified alternative variant offering identical electrical characteristics while ensuring halogen-free compliance according to IEC standards.