BYT01-400

Overview

The BYT01-400 is a high-efficiency ultrafast diode utilizing ST’s 400V planar technology. It features an axial DO-15 package and is designed for switching mode base drive and transistor circuits. Key electrical parameters include a repetitive peak reverse voltage of 400 V, an average forward current of 1 A at 80°C, and a maximum junction temperature of 150°C. The device exhibits low conduction losses with a forward voltage drop of up to 1.4 V at 100°C, and negligible switching losses characterized by a maximum reverse recovery time of 25 ns.

Feature Summary

• Ultrafast switching performance with minimal reverse recovery time
• Low forward voltage drop for reduced conduction losses
• High thermal stability with a maximum operating junction temperature of 150°C

Applications

• Switching mode base drive circuits
• Transistor circuits
• Free wheeling diodes in power supplies
• General power switching applications

Procurement Notes

Verify the specific ordering code against the required delivery mode, as the component is available in Ammopack or Tape & Reel configurations. Confirm that the DO-15 axial package dimensions align with the target PCB layout constraints. Ensure the design accounts for the specified thermal resistance values when calculating heat dissipation requirements under continuous operation conditions.

Selection Notes

Select this component for applications requiring fast recovery characteristics and robust thermal handling within a standard axial package. Evaluate the trade-off between the 1A average current rating and the surge capability based on the expected load profile. Consider the junction capacitance variations under reverse bias if the application involves high-frequency signal integrity requirements.

Part Context

This part belongs to the BYT01 series of ultrafast diodes manufactured by STMicroelectronics. The series utilizes planar technology to achieve high efficiency and reliability. The DO-15 package provides a standardized form factor suitable for through-hole mounting, ensuring compatibility with existing manufacturing processes for power electronics assemblies.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure any replacement maintains the 400V reverse voltage rating and comparable reverse recovery time specifications to preserve circuit timing and safety margins.