A1N4148WT-HF

Overview

The A1N4148WT-HF is a small signal switching diode manufactured by Comchip Technology, designed for surface mount applications in the SOD-523-2 package. It features a single configuration with a peak reverse voltage of 100 V and an average forward current rating of 150 mA. The device supports a maximum surge current of 2 A and dissipates up to 150 mW of power. Key electrical characteristics include a fast recovery time of 4 ns, a forward voltage of 1.25 V, and a reverse current of 1 uA. It operates within a temperature range of -55 C to +150 C and has a maximum diode capacitance of 2 pF.

Feature Summary

• Automotive-grade reliability certification for enhanced durability in vehicle electronics
• High-speed switching capability enabled by rapid 4 ns reverse recovery time
• Compact SMD form factor suitable for space-constrained printed circuit board layouts

Applications

• Automotive electronic systems requiring robust switching components
• General purpose high-speed switching circuits
• Clamping and protection applications in sensitive electronics

Procurement Notes

Verify that the specific part number suffix corresponds to automotive grade qualification requirements rather than standard commercial specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the sourcing channel provides valid traceability records for quality assurance purposes in regulated industries.

Selection Notes

Select this component when automotive reliability standards are mandatory for the target application environment. The SOD-523 package offers a smaller footprint compared to traditional axial leads while maintaining comparable electrical performance. Consider the 100 V reverse voltage rating for low-voltage signal processing tasks where fast response times are critical.

Part Context

This component belongs to the 1N4148 family of small signal switching diodes, adapted for modern surface mount technology. The 'A' prefix typically denotes automotive grade qualification within the manufacturer's portfolio. It serves as a direct surface mount alternative to through-hole variants like the DO-35 packaged 1N4148, offering similar electrical characteristics in a compact form factor.

Replacement Considerations

Direct substitutes include other automotive qualified SOD-523 switching diodes such as the BAV99 or BAS70 series if pin compatibility allows. Verify that replacement parts meet the same 100 V reverse voltage and 150 mA forward current ratings to ensure circuit integrity.