KBU401G T0G

Overview

The KBU401G T0G is a glass passivated bridge rectifier manufactured by Taiwan Semiconductor Corporation. It provides a maximum repetitive peak reverse voltage of 50 V and a maximum average forward rectified current of 4 A. The device features a typical instantaneous forward voltage of 1.0 V at 2 A and 1.1 V at 4 A, with a peak forward surge current capability of 150 A for an 8.3 ms half-sine wave. Electrical characteristics include a maximum DC reverse current of 5 μA at 25°C and 500 μA at 125°C. The component operates within a junction temperature range of -55 to +150°C and utilizes a through-hole mounting configuration.

Feature Summary

• Glass passivated junction construction
• High case dielectric strength
• Halogen-free molding compound
• UL recognized

Applications

• Printed circuit board assembly
• Resistive or inductive load rectification
• General purpose power supply circuits

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packing details. The 'T0' suffix indicates tube packaging, while the 'G' suffix denotes the use of green halogen-free compound. Confirm RoHS compliance status and WEEE directive adherence prior to procurement. Ensure the selected variant matches the required voltage rating and thermal management specifications for the intended application environment.

Selection Notes

Select this component based on the 50 V reverse voltage requirement and 4 A continuous current capacity. Evaluate thermal resistance values for heatsink requirements if operating near maximum ratings. Consider the 150 A surge current limit for transient protection needs. Verify package dimensions and mounting torque specifications to ensure mechanical compatibility with the target printed circuit board layout.

Part Context

This part belongs to the KBU40xG series from Taiwan Semiconductor, which includes variants ranging from 50 V to 1000 V reverse voltage. The series shares common mechanical data and feature sets, differentiated primarily by their voltage blocking capabilities. The KBU401G represents the lowest voltage option in this specific bridge rectifier lineup.

Replacement Considerations

Direct substitutes within the same series include KBU402G, KBU403G, KBU404G, KBU405G, KBU406G, and KBU407G, provided the higher voltage ratings are acceptable for the circuit design.