KBP04M

Overview

The KBP04M is a single-phase bridge rectifier manufactured by onsemi, designed for through-hole mounting in SIP-4 packages. It features a peak reverse voltage of 400 V and an average forward rectified current of 1.5 A. The device exhibits a maximum forward voltage drop of 1.3 V at rated current and supports surge currents up to 50 A. Operating temperatures range from -55 °C to +165 °C, with a power dissipation rating of 3.5 W. Reverse leakage current is specified at 5 µA.

Feature Summary

• High temperature stability enabling operation up to 165 °C
• Robust surge current handling capability for transient protection
• Compact single inline package suitable for space-constrained designs

Applications

• General-purpose AC to DC power supply conversion
• Battery charging circuits requiring high thermal endurance
• Industrial control systems operating in elevated temperature environments

Procurement Notes

Verify the specific manufacturing date code and lot traceability upon receipt to ensure compliance with project quality standards. Confirm that the SIP-4 pin configuration matches the target PCB footprint design. Check for any physical damage to the leads or casing before soldering. Ensure storage conditions remain within specified limits to prevent degradation of the semiconductor junction prior to assembly.

Selection Notes

Select this component when a 400 V blocking voltage and 1.5 A continuous current are required in a through-hole format. The wide operating temperature range makes it suitable for harsh industrial environments. Compare the 1.3 V forward voltage drop against efficiency requirements relative to lower-voltage-drop alternatives. Ensure the 3.5 W power dissipation rating aligns with the thermal management strategy of the final enclosure design.

Part Context

The KBP04M belongs to onsemi's KBP series of single-phase bridge rectifiers. This series is characterized by silicon epitaxial planar construction and glass passivation. The components are designed for general-purpose rectification applications where reliability and thermal performance are critical. The SIP-4 package provides mechanical stability for automated insertion processes.

Replacement Considerations

Direct replacements must match the 400 V reverse voltage, 1.5 A current rating, and SIP-4 package outline. Verify pinout compatibility to avoid circuit board modifications. Consider thermal resistance characteristics if the replacement operates in a similar enclosed environment.