HSMS-2850-TR2G

RF Diode Overview

The HSMS-2850-TR2G is a surface mount zero bias Schottky detector diode from the HSMS-285x series, manufactured by Broadcom Limited. It is designed for small signal applications with input power below -20 dBm at frequencies under 1.5 GHz. The device features a SOT-323 package and operates within a temperature range of -65°C to +150°C. 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. It offers high detection sensitivity up to 50 mV/µW at 915 MHz and low flicker noise of -162 dBV/Hz at 100 Hz.

RF Diode Feature Summary

• Optimized for small signal detection in RF/ID and RF Tag applications without primary DC bias
• Provides matched diodes for consistent performance through adjacent wafer site mounting
• Features low flicker noise and high detection sensitivity for improved receiver performance

RF Diode Applications

• RF/ID (Radio Frequency Identification) systems
• RF Tag applications lacking primary DC bias power
• Small signal crystal video receivers operating below 1.5 GHz

RF Diode Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm package marking codes and lead configurations match design requirements. Check for RoHS compliance status and ensure handling precautions for electrostatic sensitive devices are observed during assembly and storage processes.

RF Diode Selection Notes

Select this component for designs requiring zero bias detection at frequencies below 1.5 GHz with input powers under -20 dBm. For higher input power levels or frequencies above 4.0 GHz, consider alternative series such as HSMS-282x or HSMS-286x. Ensure impedance matching networks account for the specific RF impedance characteristics provided in the datasheet.

RF Diode Part Context

The HSMS-2850-TR2G belongs to the HSMS-285x family of surface mount zero bias Schottky detector diodes. This series includes various package options like SOT-23, SOT-143, SOT-323, and SOT-363, offering flexibility for different board space constraints while maintaining high detection sensitivity and low noise performance for RFID and tag applications.

RF Diode Replacement Considerations

For applications exceeding -20 dBm input power below 4.0 GHz, use the HSMS-282x series. For frequencies above 4.0 GHz, utilize the HSMS-286x series. These alternatives are recommended as the HSMS-285x series is not suitable for higher power level detector applications.