HSMP-381B-TR1G

RF Diode Overview

The HSMP-381B-TR1G is a surface mount RF PIN diode from the Broadcom HSMP-381x series, designed for low distortion attenuator applications. It features a single diode configuration in an SOT-323 package with lead code B. Key electrical specifications include a minimum breakdown voltage (VBR) of 100 V and a maximum total capacitance (CT) of 0.35 pF at 50 V reverse bias. The device exhibits a typical series resistance (RS) of 53 Ohms at 1 mA forward current and a carrier lifetime of 1500 ns. It operates within a temperature range of -65°C to +150°C and supports a maximum forward current pulse of 1 A.

RF Diode Feature Summary

• Optimized for low distortion attenuation in microwave frequency operations
• Features ultra-low parasitic inductance suitable for high-frequency circuits
• Lead-free construction compliant with environmental standards

RF Diode Applications

• Low distortion RF attenuators
• Microwave frequency switching circuits
• High-frequency signal routing systems

RF Diode Procurement Notes

Verify the specific ordering suffix to confirm packaging format. The TR1G suffix indicates tape and reel packaging containing 3000 devices per 7-inch reel. Confirm RoHS compliance status through official documentation as manufacturing processes may evolve. Ensure the component matches the required SOT-323 footprint for automated placement.

RF Diode Selection Notes

Select this component when low distortion performance is critical for attenuator designs. The single diode configuration requires external circuitry for balanced or push-pull topologies. Verify that the 100 V breakdown voltage meets the peak inverse voltage requirements of the target application. Consider the 0.35 pF capacitance limit for high-frequency signal integrity.

RF Diode Part Context

This part belongs to the HSMP-381x family of surface mount PIN diodes manufactured by Broadcom Limited. The series includes various configurations such as series, common anode, and common cathode variants. The HSMP-381B specifically denotes the single diode version with lead code B, distinguishing it from dual or multi-diode packages in the same product line.

RF Diode Replacement Considerations

Direct substitutes within the HSMP-381x series include HSMP-381C (Series), HSMP-381E (Common Anode), and HSMP-381F (Common Cathode). These parts share similar electrical characteristics but differ in internal lead configuration. Verify pinout compatibility before substitution.