HSMS-285C-TR2G

RF Diode Overview

The HSMS-285C-TR2G is a surface-mount zero bias Schottky detector diode from the HSMS-285x series, manufactured by Broadcom Limited. It features a Series Pair configuration within an SOT-323 package. The device is optimized for small signal applications with input power below -20 dBm at frequencies under 1.5 GHz. Key electrical specifications include a maximum forward voltage of 150 mV at 1.0 mA, a typical junction capacitance of 0.30 pF at -0.5 V to -1.0 V, and a peak inverse voltage rating of 2.0 V. It operates within a temperature range of -65°C to +150°C.

RF Diode Feature Summary

• Optimized for low-cost, high-volume designs in small signal detection applications where primary DC bias power is unavailable.
• Provides matched diodes within the package to ensure consistent performance and minimal parameter variation between devices.
• Features low flicker noise characteristics suitable for sensitive RF detection circuits operating below 1.5 GHz.

RF Diode Applications

• RFID (Radio Frequency Identification) tag receivers
• RF Tag detection circuits
• Small signal crystal video receivers

RF Diode Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status via official documentation. Check for End-of-Life notifications or Product Change Notices prior to final design approval. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to prevent package damage during assembly.

RF Diode Selection Notes

Select this component for applications requiring zero-bias detection at frequencies below 1.5 GHz with input powers less than -20 dBm. For higher power inputs exceeding -20 dBm, consider the HSMS-282x series for frequencies below 4.0 GHz or the HSMS-286x series for frequencies above 4.0 GHz. Ensure the circuit design accommodates the specific impedance matching requirements of the series pair configuration.

RF Diode Part Context

The HSMS-285C-TR2G belongs to the HSMS-285x family of surface mount zero bias Schottky detector diodes. This series is engineered specifically for RFID and RF tag applications that lack primary DC bias power. The 'C' suffix denotes a Series Pair configuration, while 'TR2G' indicates a tape and reel packaging format containing 10,000 units per reel.

RF Diode Replacement Considerations

For input power levels greater than -20 dBm, use the HSMS-282x series at frequencies below 4.0 GHz, and the HSMS-286x series at frequencies above 4.0 GHz. The HSMS-285x series is not recommended for these higher power level applications.