HSMP-3894-BLKG

RF Diode Overview

The HSMP-3894-BLKG is a surface mount RF PIN switch diode from the Broadcom HSMP-389x series, housed in an SOT-23 package. It features a common cathode configuration with a peak inverse voltage of 100 V and a maximum forward current of 1 A. The device exhibits a typical carrier lifetime of 200 ns, resulting in a total capacitance of 0.20 pF at 5 V reverse bias and 0.30 pF at 1 MHz test conditions. Series resistance is specified as 2.5 Ω at 5 mA forward current and typically 3.8 Ω at 1 mA. Operating temperatures range from -65 °C to +150 °C.

RF Diode Feature Summary

• Optimized for switching applications requiring low resistance at low currents and minimal capacitance.
• Features matched diodes within the series to ensure consistent performance across circuits.
• Designed with lead-free construction and enhanced thermal conductivity for higher power dissipation capabilities.

RF Diode Applications

• RF switching circuits requiring low parasitic capacitance
• Transmit/Receive switches in communication systems
• High isolation SPDT switch configurations

RF Diode Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type. The BLKG suffix indicates bulk packaging containing 100 pieces per antistatic bag. Confirm that the component meets RoHS compliance standards required for your assembly process before procurement.

RF Diode Selection Notes

Select this component when a common cathode PIN diode configuration is required for RF switching. Ensure the system operates at frequencies where the 200 ns carrier lifetime provides appropriate impedance characteristics. Verify that the 100 V breakdown voltage exceeds the maximum reverse voltage expected in the circuit design.

RF Diode Part Context

This part belongs to the HSMP-389x series of surface mount RF PIN switch diodes manufactured by Broadcom Limited. The series offers various internal configurations including single, series, and dual diode arrangements within standard surface mount packages like SOT-23 and SOT-323.

RF Diode Replacement Considerations

Consult the manufacturer datasheet for electrically equivalent parts within the HSMP-389x or HSMP-489x families. Verify pinout compatibility and electrical parameters such as capacitance and breakdown voltage before substituting with other manufacturers' components.

RF Diode FAQ

What is the internal configuration of the HSMP-3894?

The HSMP-3894 features a common cathode configuration, allowing multiple diodes to share a common ground reference point.

What is the typical carrier lifetime for this device?

The typical carrier lifetime is 200 ns, which influences the device's switching speed and frequency response characteristics.

What is the maximum operating junction temperature?

The maximum junction temperature is 150 °C, defining the upper thermal limit for reliable operation under load.