HSMS-281C-BLKG

RF Diode Overview

The HSMS-281C-BLKG is a surface mount RF Schottky barrier diode from the HSMS-281x series, manufactured by Broadcom Limited. It features a dual-series configuration housed in an SOT-323 package with three leads. The device operates with a maximum breakdown voltage of 20 V and a forward current rating of 1 mA. Key electrical specifications include a typical forward voltage of 400 mV at 1 mA, reverse leakage current of 200 nA at 20 V, and junction capacitance of 1.2 pF at 0 V. Dynamic resistance is typically 15 Ω at 5 mA. The component supports a junction temperature range up to 150°C and is designed for low flicker noise applications.

RF Diode Feature Summary

• Low flicker (1/f) noise performance suitable for sensitive analog and digital circuits
• High degree of matching between paired or quad devices due to adjacent wafer site manufacturing
• Surface mount design available in single, dual, and quad configurations

RF Diode Applications

• Analog signal processing circuits requiring low noise characteristics
• Digital switching applications utilizing surface mount technology
• RF detection and mixing circuits within the HSMS-281x family specifications

RF Diode Procurement Notes

Verify the specific ordering suffix and lead-free status when sourcing replacements, as the datasheet indicates 'G' suffixes denote lead-free options. Confirm package orientation and marking codes against the official pinout diagrams to ensure correct placement during assembly. Check for any product change notices regarding packaging or material composition updates.

RF Diode Selection Notes

Select this component when low flicker noise is critical compared to the HSMS-282x series. Choose the dual-series configuration specifically if circuit topology requires two diodes connected in series within a single compact SOT-323 footprint. Ensure the 20 V breakdown voltage meets the peak inverse voltage requirements of the target application.

RF Diode Part Context

This part belongs to the HSMS-281x family of surface mount RF Schottky barrier diodes. The series offers various configurations including single, dual, and quad versions in packages like SOT-23, SOT-143, SOT-323, and SOT-363. The HSMS-281x family is distinguished by its lower flicker noise profile compared to other families in the lineup.

RF Diode Replacement Considerations

HSMS-2812-BLKG serves as a functional equivalent within the same series offering identical series configuration and electrical parameters in the same package.