HSMS-2850-TR1G

RF Diode Overview

The HSMS-2850-TR1G is a surface mount zero bias Schottky detector diode from the HSMS-285x family, designed for small signal applications below 1.5 GHz with input power levels under -20 dBm. It features a single diode configuration in an SOT-23 package. Key electrical specifications include a typical forward voltage of 150 mV at 0.1 mA, maximum reverse leakage current of 250 µA at 2 V, and typical junction capacitance of 0.30 pF at -0.5 V to -1.0 V. RF performance metrics at 915 MHz include a typical tangential sensitivity of -57 dBm, voltage sensitivity of 40 mV/µW, and video resistance of 8.0 kΩ.

RF Diode Feature Summary

• Optimized for low-cost, high-volume designs requiring detection without primary DC bias power.
• Manufacturing techniques ensure matched diodes within packages for consistent performance.
• Provides high detection sensitivity suitable for RFID and RF Tag applications.

RF Diode Applications

• RFID (Radio Frequency Identification) systems
• RF Tag circuits
• Small signal RF detectors below 1.5 GHz

RF Diode Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the specific ordering suffix corresponds to the required tape and reel packaging format. Ensure compliance with RoHS directives and handle electrostatic sensitive devices according to specified ESD precautions during assembly.

RF Diode Selection Notes

Select this component for applications where input power remains below -20 dBm. For higher power levels above this threshold, consider the HSMS-282x series for frequencies below 4.0 GHz or the HSMS-286x series for frequencies above 4.0 GHz. The HSMS-285x series is not recommended for large signal designs.

RF Diode Part Context

This device belongs to the HSMS-285x family of zero bias Schottky detector diodes manufactured by Broadcom Limited (formerly Avago). The family includes various package configurations such as SOT-23, SOT-143, SOT-323, and SOT-363, offering solutions for different design constraints while maintaining low flicker noise and high thermal conductivity.

RF Diode Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official replacement guides or application notes for equivalent components if obsolescence occurs.

RF Diode FAQ

What is the maximum recommended input power for the HSMS-2850?

The HSMS-2850 is optimized for small signal applications with input power levels less than -20 dBm. It is not recommended for applications exceeding this power level.

How does the HSMS-2850 perform regarding flicker noise?

The device exhibits low flicker noise, typically -162 dBV/Hz at 100 Hz, which helps maintain sensitivity in crystal video receivers.

What is the typical video resistance at 915 MHz?

The typical video resistance (RV) for the HSMS-2850 at 915 MHz is 8.0 kΩ when tested with zero bias and a 100 kΩ load.