HSMS-2855-TR2G

RF Diode Overview

The HSMS-2855-TR2G is a surface mount zero bias Schottky detector diode from the HSMS-285x series, manufactured by Broadcom Limited. It features an unconnected pair configuration within a SOT-23 package and 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 175 mV at 1.0 mA, a maximum reverse leakage current of 250 µA at 2 V, and a typical junction capacitance of 0.30 pF at -0.5 V to -1.0 V. The device operates within a temperature range of -65°C to +150°C and provides high detection sensitivity up to 50 mV/µW at 915 MHz.

RF Diode Feature Summary

• Optimized for low-cost, high-volume designs in small signal RF detection applications where primary DC bias is unavailable.
• Manufacturing process ensures matched diodes within the package for consistent performance and minimal parameter variation.
• Features low flicker noise characteristics (-162 dBV/Hz at 100 Hz) to maintain sensitivity in crystal video receivers.
• Available in tape and reel packaging options to support automated surface mount assembly processes.

RF Diode Applications

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

RF Diode Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type and quantity. Check for recent Product Change Notices (PCN) regarding manufacturing site or material updates. Ensure storage conditions comply with moisture sensitivity levels to prevent damage during reflow soldering.

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 accounts for the specific video impedance and junction capacitance values provided in the datasheet for optimal matching.

RF Diode Part Context

This part belongs to the HSMS-285x family of surface mount zero bias Schottky detector diodes. The series includes various configurations such as single diodes, series pairs, unconnected pairs, trios, and bridges, available in SOT-23, SOT-143, SOT-323, and SOT-363 packages. The HSMS-2855 specifically denotes an unconnected pair configuration in the SOT-23 form factor.

RF Diode Replacement Considerations

For higher power applications (> -20 dBm), use HSMS-282x (< 4.0 GHz) or HSMS-286x (> 4.0 GHz). Other HSMS-285x variants like HSMS-2850 (single) or HSMS-285C (series pair) may be used if the circuit topology supports different internal configurations.