HSMP-381F-TR1

RF Diode Overview

The HSMP-381F-TR1 is a PIN diode manufactured by Broadcom Limited, designed for high-frequency switching and attenuation applications. It features a common cathode configuration within an SOT-323 surface-mount package. Key electrical parameters include a maximum reverse voltage of 50 V and a typical carrier lifetime of 1.5 microseconds. The device supports a maximum forward current of 1 A and operates across a temperature range from -65 °C to +150 °C. It exhibits a maximum diode capacitance of 350 fF and a recovery time of 300 ns. The series resistance varies between 3 Ohms at maximum frequency and 53 Ohms at minimum frequency.

RF Diode Feature Summary

• Common cathode PIN diode architecture optimized for RF signal control
• Silicon technology construction supporting wide thermal operating ranges
• Surface-mount SOT-323 packaging for compact circuit integration

RF Diode Applications

• RF switch circuits
• Variable attenuator designs
• Phase shifter implementations

RF Diode Procurement Notes

Verify component authenticity through authorized distribution channels due to potential obsolescence status. Confirm RoHS compliance documentation matches specific manufacturing lots. Validate datasheet revisions against current engineering requirements before procurement finalization.

RF Diode Selection Notes

Select this component when common cathode topology is required for RF switching networks. Ensure the 50 V reverse voltage rating exceeds peak circuit voltages. Verify that the 350 fF capacitance meets insertion loss specifications for target frequency bands.

RF Diode Part Context

This part belongs to the HSMP-381 family of PIN diodes from Broadcom. Variants such as HSMP-381F-BLKG share similar electrical characteristics but differ in packaging format. The TR1 suffix typically indicates tape and reel packaging for automated assembly processes.

RF Diode Replacement Considerations

Direct substitutes include HSMP-381F-BLKG with identical electrical performance but bulk packaging. Cross-reference HSMP-381E-TR1G for common anode configurations requiring similar RF characteristics.