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The SI8901EDB-T2-E1 is a single N-channel enhancement mode MOSFET manufactured by Vishay Siliconix using TrenchFET technology. It features a MicroFoot-4 surface-mount package with dimensions of 0.8 x 0.8 mm. The device supports a drain-source voltage (Vds) of 20 V and a continuous drain current (Id) of 3.5 A at 25°C. Key electrical parameters include a maximum on-resistance (Rds(on)) of 55 mΩ at Vgs = 4.5 V, a gate charge (Qg) of 6 nC, and a threshold voltage (Vgs(th)) of 350 mV. It operates within a temperature range of -55°C to +150°C with a power dissipation rating of 900 mW.
Verify the specific ordering suffix against the manufacturer's latest datasheet to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer, as availability may vary by region and production lot.
Select this component when a compact N-channel MOSFET with 20V capability and low Rds(on) is required. Ensure the application voltage and current ratings remain within the specified limits. Consider thermal management requirements given the small package size and 900 mW power dissipation rating.
This part belongs to the SI8 series of TrenchFET MOSFETs from Vishay Siliconix, designed for high-density surface-mount applications. The MicroFoot-4 package provides a significant reduction in board area compared to traditional SOT-23 packages while maintaining comparable electrical performance for low-voltage switching tasks.
Check for direct pin-compatible alternatives such as the SI8824EDB-T2-E1 or SI8902EDB-T2-E1 from the same manufacturer family. Verify that any substitute matches the 20V Vds, N-channel configuration, and MicroFoot-4 package dimensions before implementation.