HBAT-540B-TR1G

RF Diode Overview

The HBAT-540B-TR1G is a single high-performance Schottky diode from the HBAT-540x series, designed for transient suppression and circuit protection. It is housed in an SOT-323 (SC-70) package with three leads. The device features a typical forward voltage of 800 mV at 100 mA and a breakdown voltage of 30 V. Key electrical parameters include a maximum DC forward current of 430 mA, a peak surge current of 1.0 A, and a total power dissipation of 825 mW. The junction-to-case thermal resistance is 150 °C/W, supporting operation up to a junction temperature of 150 °C.

RF Diode Feature Summary

• Ultra-low series resistance enables higher current handling capacity compared to standard Schottky diodes.
• Low capacitance minimizes waveshape loss and signal degradation during high-speed switching.
• Picosecond switching response allows effective protection against noise spikes with rise times as fast as 1 ns.

RF Diode Applications

• RF and computer designs requiring circuit protection
• High-speed switching applications
• Voltage clamping and transient suppression on data lines

RF Diode Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the part number suffix matches the required reel quantity and lead-free status. Check for recent product change notices regarding assembly sources or material updates before finalizing procurement orders.

RF Diode Selection Notes

Select this component when low series resistance is critical for managing high forward currents without excessive thermal runaway. The SOT-323 package offers superior thermal performance compared to SOT-23 variants. Ensure the application voltage remains below the 30 V breakdown rating and that the operating environment supports the specified junction temperature limits.

RF Diode Part Context

This component belongs to the HBAT-540x family of Schottky diodes manufactured by Broadcom Limited. The series includes single configurations like the HBAT-540B and series pairs such as the HBAT-540C. These devices are engineered specifically for clipping and clamping applications where preserving signal integrity and handling transient currents are primary design requirements.

RF Diode Replacement Considerations

Publicly confirmed substitute part numbers include BAT54SW,115 from Nexperia USA Inc., BAT54SWFILM from STMicroelectronics, and BAT54SWT1G from onsemi. Verify pinout compatibility and electrical parameter alignment before substitution.

RF Diode FAQ

What is the typical series resistance value for the HBAT-540B?

The typical series resistance (RS) for the HBAT-540x family, including the HBAT-540B, is 2.4 Ω.

How does the HBAT-540B handle thermal stress during high current operation?

The SOT-323 package utilizes a copper leadframe with a junction-to-case thermal resistance of 150 °C/W, allowing it to safely withstand steady-state forward currents of up to 330 mA at a lead temperature of 75 °C.

What is the maximum peak inverse voltage rating?

The maximum peak inverse voltage (PINV) for the HBAT-540B is 30 V.