HSMP-4890-BLKG

RF Diode Overview

The HSMP-4890-BLKG is a surface mount RF PIN switch diode from the Broadcom HSMP-489x series, designed for ultra-low parasitic inductance applications. It features a dual anode configuration housed in an SOT-23 package with a lead code of GA. The device supports a peak inverse voltage (VBR) of 100 V and a maximum forward current of 1 A. Electrical specifications include a typical total capacitance of 0.33 pF at 1 MHz and a maximum series resistance of 2.5 Ohms at 5 mA forward bias. The component operates within a temperature range of -65°C to +150°C.

RF Diode Feature Summary

• Ultra-low parasitic inductance optimized for high-frequency operation above 500 MHz
• Dual anode configuration providing flexibility for balanced circuit designs
• Low capacitance and low resistance characteristics suitable for efficient switching

RF Diode Applications

• High frequency transmit/receive switches
• Co-planar waveguide shunt connections
• Microstrip series or shunt connections

RF Diode Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type. The BLKG suffix indicates bulk packaging containing 100 pieces per antistatic bag. Confirm availability status as distribution channels may vary. Ensure compliance with RoHS standards and lead-free assembly requirements during procurement.

RF Diode Selection Notes

Select this component when ultra-low inductance is critical for frequencies between 500 MHz and 3 GHz. The dual anode configuration allows for specific circuit topologies requiring matched pairs. Verify that the 100 V breakdown voltage meets the system's reverse bias requirements. Consider the SOT-23 footprint dimensions for PCB layout compatibility.

RF Diode Part Context

This part belongs to the HSMP-489x series, which is specifically engineered for high-frequency applications where conventional PIN diodes are limited by parasitic inductance. The series complements the HSMP-389x family by offering enhanced performance in the 500 MHz to 3 GHz range through reduced lead inductance and optimized internal connections.

RF Diode Replacement Considerations

The HSMP-389T is a single low-inductance alternative within the same datasheet. For dual configurations, the HSMP-389U offers a series-shunt pair topology. Verify pinout compatibility and electrical parameters before substitution.