HSMS-285L-BLKG

RF Diode Overview

The HSMS-285L-BLKG is a surface mount zero bias Schottky detector diode from the HSMS-285x series, manufactured by Broadcom Limited. It features an unconnected trio configuration housed in a miniature SOT-363 package. Designed for small signal applications with input power below -20 dBm at frequencies under 1.5 GHz, it offers high detection sensitivity of up to 50 mV/µW at 915 MHz and low flicker noise of -162 dBV/Hz at 100 Hz. Electrical specifications include a maximum forward voltage of 150 mV, maximum reverse leakage current of 250 µA, and typical capacitance of 0.30 pF. The device operates within a temperature range of -65°C to +150°C.

RF Diode Feature Summary

• Optimized for small signal detection in RF/ID and RF Tag applications where primary DC bias is unavailable.
• Provides matched diodes within the package to ensure consistent performance and high degree of matching.
• Features low flicker noise characteristics suitable for sensitive crystal video receiver circuits.
• Utilizes lead-free manufacturing techniques with tape and reel options available.

RF Diode Applications

• RF/ID (Radio Frequency Identification) systems
• RF Tag applications
• Small signal detection circuits operating below 1.5 GHz

RF Diode Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific lot traceability requirements. Ensure handling procedures account for electrostatic sensitivity as indicated by ESD warnings in the datasheet. Review assembly profiles for lead-free reflow compatibility before integration.

RF Diode Selection Notes

Select this component for designs requiring zero bias detection in compact surface mount layouts. The SOT-363 package supports space-constrained PCBs while maintaining thermal conductivity. Ensure input signal levels remain below -20 dBm; higher power applications require the HSMS-282x or HSMS-286x series instead. Consider the unconnected trio configuration if multiple independent detector paths are needed.

RF Diode Part Context

This part belongs to the HSMS-285x family of zero bias Schottky detector diodes. The 'L' suffix denotes the unconnected trio configuration within the SOT-363 package. The 'BLKG' suffix indicates bulk packaging in antistatic bags. This series is distinct from mixer-focused variants and is specifically engineered for low-power rectification tasks.

RF Diode Replacement Considerations

For higher input power levels 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. Other configurations in the HSMS-285x family, such as HSMS-285C (Series Pair) or HSMS-285P (Bridge Quad), offer different internal topologies but share similar electrical characteristics.

RF Diode FAQ

What is the maximum recommended input power for the HSMS-285L-BLKG?

The HSMS-285L-BLKG is designed for small signal applications with input power levels below -20 dBm. Using it for higher power levels is not recommended.

How does the HSMS-285L-BLKG handle electrostatic discharge?

The device is sensitive to static discharge. Handling precautions should be taken, adhering to ESD Machine Model Class A and Human Body Model Class 0 guidelines.

What is the typical flicker noise performance of this diode?

The HSMS-285x series exhibits low flicker noise, typically -162 dBV/Hz at 100 Hz, which helps maintain sensitivity in low-frequency video applications.