HSMP-4890-TR2G

RF Diode Overview

The HSMP-4890-TR2G 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 optimized for high-frequency applications ranging from 500 MHz to 3 GHz. The device utilizes a Dual Anode configuration housed in an SOT-363 package. Key electrical specifications include a breakdown voltage (VBR) of 100 V, a maximum series resistance (RS) of 2.5 Ω at 5 mA forward current, and a total capacitance (CT) of 0.375 pF measured at 1 MHz. The component supports a peak inverse voltage of 100 V and operates within a junction temperature range of -65°C to +150°C.

RF Diode Feature Summary

• Ultra-low parasitic inductance architecture designed for frequencies significantly higher than conventional PIN diodes.
• Dual Anode configuration providing flexibility for specific switching circuit topologies.
• Low capacitance and low resistance characteristics optimized for efficient RF signal switching.

RF Diode Applications

• High-frequency RF switching circuits operating between 500 MHz and 3 GHz.
• Microstrip series connection layouts requiring minimal lead inductance.
• Co-planar waveguide shunt connections for lower parasitic inductance and higher attenuation.

RF Diode Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for End-of-Life notifications or Product Change Notices prior to procurement. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to prevent damage during assembly.

RF Diode Selection Notes

Select this component when ultra-low inductance is critical for performance above 500 MHz. The Dual Anode configuration suits designs requiring specific biasing arrangements. Compare series resistance and capacitance values against system requirements to ensure adequate isolation and insertion loss performance at target frequencies.

RF Diode Part Context

This part belongs to the HSMP-489x series, which focuses on high-frequency performance through reduced parasitic inductance. It complements the HSMP-389x series, which offers various configurations like single, common anode, and common cathode options but lacks the specialized low-inductance design of the 489x line.

RF Diode Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative components based on matching electrical parameters such as breakdown voltage, series resistance, and capacitance, while ensuring compatible package dimensions and pin configurations.

RF Diode FAQ

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

The typical total inductance (LT) for the HSMP-489x series is 1.0 nH, measured at frequencies between 500 MHz and 3 GHz.

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

To maximize the low inductance advantage, both lead 1 and lead 2 should be connected together in microstrip series applications.

What is the maximum soldering temperature for this component?

The maximum soldering temperature is 260°C for 5 seconds, adhering to lead-free reflow profiles.