HSMP-489B-TR1G

RF Diode Overview

The HSMP-489B-TR1G is a surface mount RF PIN switch diode from the HSMP-489x series, manufactured by Broadcom Limited. It features an ultra-low parasitic inductance design specifically engineered for high-frequency applications exceeding the limits of conventional PIN diodes. The device utilizes a Dual Anode configuration housed in an SOT-23 package. Key electrical specifications include a Peak Inverse Voltage (PIV) of 100 V, a maximum series resistance of 2.5 Ohms, and a total capacitance of 0.375 pF. The component operates within a junction temperature range of -65°C to +150°C and supports a forward current of 1 A.

RF Diode Feature Summary

• Ultra-low parasitic inductance architecture optimized for frequencies significantly higher than standard PIN diode capabilities.
• Dual Anode configuration providing flexibility for specific switching circuit topologies.
• Lead-free construction compliant with environmental standards.

RF Diode Applications

• High-frequency RF switching circuits
• Low inductance shunt mounted switches
• Microstrip series connection applications

RF Diode Procurement Notes

Verify the exact ordering suffix against official documentation to ensure correct packaging quantity and tape-and-reel specifications. Confirm RoHS compliance status through the manufacturer's latest release notes or datasheet revision history prior to procurement.

RF Diode Selection Notes

Select this component when circuit designs require minimal parasitic inductance at frequencies between 500 MHz and 3 GHz. Ensure the dual anode topology aligns with the intended biasing scheme and that the 100 V breakdown voltage meets the system's peak inverse voltage requirements.

RF Diode Part Context

This part belongs to the HSMP-489x series, which focuses on low inductance performance. It shares the same pinout and general characteristics as other variants in the HSMP-389x family but distinguishes itself through enhanced high-frequency behavior due to reduced lead inductance.

RF Diode Replacement Considerations

Direct substitutes within the same series include HSMP-489C, HSMP-489E, and HSMP-489F. Verify package compatibility and internal diode configuration before substitution.

RF Diode FAQ

What is the typical package inductance for the HSMP-489x series?

The typical package inductance is specified as 1.0 nH.

How should leads 1 and 2 be connected for microstrip series applications?

Both lead 1 and lead 2 should be connected together to fully utilize the low inductance characteristics in series applications.

What is the maximum soldering temperature allowed?

The maximum soldering temperature is 260°C for a duration of 5 seconds.