BA157G

Overview

The BA157G is a fast recovery plastic rectifier manufactured by Taiwan Semiconductor Corporation. It features a single silicon element with a maximum average forward rectified current of 1 A and a maximum repetitive peak reverse voltage of 400 V. The device utilizes a glass passivated junction for reliability and is housed in a DO-41 axial leaded package. It is designed for high-speed switching applications requiring low power loss.

Feature Summary

• Fast recovery characteristics suitable for high-frequency switching
• Glass passivated junction ensures long-term stability
• Low forward voltage drop for improved efficiency

Applications

• High frequency rectification circuits
• Free wheeling diodes in inductive loads
• Polarity protection in DC power supplies

Procurement Notes

Verify the specific manufacturer designation, as multiple vendors produce components under this generic part number. Confirm that the sourced unit matches the Taiwan Semiconductor specification sheet regarding electrical ratings and physical dimensions to ensure compatibility with the intended design requirements.

Selection Notes

Select this component when a 1 A current rating and 400 V reverse voltage are required in an axial package. Consider the fast recovery time if the application involves high-frequency operation or snubber circuits. Ensure the thermal management strategy supports the specified operating temperature range for reliable performance.

Part Context

This component belongs to the family of fast recovery rectifiers commonly used in consumer electronics and industrial power supplies. It serves as a standard replacement for general-purpose fast recovery diodes in legacy designs requiring axial mounting and moderate current handling capabilities within a compact form factor.