HSMP-389T-TR1

RF Diode Overview

The HSMP-389T-TR1 is a surface mount RF PIN switch diode from the Broadcom HSMP-389x series, housed in an SOT-23 package. It features a low inductance single-diode configuration optimized for switching applications requiring low resistance at low current and low capacitance. The device has a peak inverse voltage of 100 V, a maximum series resistance of 2.5 Ω, and a total capacitance of 0.30 pF. Typical parameters include a carrier lifetime of 200 ns and a series resistance of 3.8 Ω at 1 mA forward bias.

RF Diode Feature Summary

• Low inductance design suitable for high-frequency switching
• Single diode configuration for flexible circuit integration
• Lead-free construction compliant with environmental standards

RF Diode Applications

• Low inductance shunt mounted switches
• High frequency transmit/receive switching
• RF signal routing in communication systems

RF Diode Procurement Notes

Verify the specific ordering suffix to confirm packaging format. The -TR1 suffix indicates tape and reel packaging containing 3000 devices per 7-inch reel. Confirm that the component meets lead-free assembly requirements and matches the required SOT-23 footprint dimensions for your PCB layout.

RF Diode Selection Notes

Select this component when low parasitic inductance is critical for high-frequency performance above 500 MHz. Ensure the application operates within the 100 V peak inverse voltage limit and requires a single diode topology. Verify that the SOT-23 package size fits the available board space and that the thermal resistance characteristics are adequate for the expected power dissipation levels.

RF Diode Part Context

This part belongs to the HSMP-389x series of surface mount RF PIN switch diodes manufactured by Broadcom Limited. The series offers various configurations including single, dual, and unconnected pairs/trios to support different switching topologies. The HSMP-389T specifically denotes the low inductance single variant designed for enhanced high-frequency operation compared to standard series diodes.

RF Diode Replacement Considerations

Direct substitutes within the same series include HSMP-389B (single), HSMP-389C (series), and HSMP-389E (common anode). For low inductance requirements, consider the HSMP-489x series which features ultra-low parasitic inductance. Verify pinout compatibility and electrical specifications before substitution.

RF Diode FAQ

What is the typical carrier lifetime for the HSMP-389T?

The typical carrier lifetime is 200 ns.

What is the maximum series resistance specified for this diode?

The maximum series resistance is 2.5 Ω.

Is the HSMP-389T lead-free?

Yes, the component is lead-free.