SI1553DL-T1

Overview

The Vishay Siliconix SI1553DL-T1 is a complementary MOSFET pair in a SOT-363 (SC-70-6) package. The N-channel device features a 20 V drain-source voltage and an on-resistance of 0.385 Ω at VGS = 4.5 V, with a continuous drain current of ±0.70 A. The P-channel counterpart provides a -20 V rating and an on-resistance of 0.995 Ω at VGS = -4.5 V. Both transistors utilize TrenchFET technology for optimized performance.

Feature Summary

• Complementary N-channel and P-channel configuration within a single surface-mount package
• TrenchFET power MOSFET technology for enhanced switching efficiency
• Halogen-free construction compliant with IEC 61249-2-21 standards

Applications

• Low-voltage load switch applications
• Battery protection circuits
• Power management systems requiring compact complementary pairs

Procurement Notes

Verify the specific ordering suffix when purchasing. The base model SI1553DL-T1 requires suffixes such as -E3 or -GE3 to denote lead-free and halogen-free compliance. Confirm RoHS directive alignment and environmental specifications directly with authorized distributors before finalizing procurement orders.

Selection Notes

Select this component for designs requiring matched N-channel and P-channel switching in minimal space. Ensure gate drive voltages align with the specified thresholds for optimal RDS(on). Evaluate thermal dissipation requirements against the junction-to-ambient resistance ratings provided in the datasheet.

Part Context

This part belongs to the Vishay Siliconix Si1553 series of low-voltage complementary MOSFETs. It is designed for portable electronics and battery-powered devices where small footprint and efficient power handling are critical design constraints.

Replacement Considerations

Check for direct equivalents like the SI1553CDL-T1. Verify pinout compatibility and electrical parameters match before substituting.