KBP4T10

Overview

The KBP4T10 is a 4A fast recovery bridge rectifier manufactured by Diodes Incorporated. It features a maximum repetitive peak reverse voltage (VRRM) of 1000V and a maximum DC blocking voltage (VDC) of 1000V. The device supports an average rectified output current (IF(AV)) of 4A without a heatsink at a case temperature of +125°C, or 1.9A with a heatsink under the same conditions. Peak forward surge current (IFSM) reaches 100A for an 8.3ms single half sine-wave pulse. Electrical characteristics include a maximum forward voltage (VF) of 1.3V at 4A, a maximum leakage current (IR) of 5µA at rated voltage and +25°C, and a typical reverse recovery time (trr) of 500ns. The junction capacitance is typically 40pF.

Feature Summary

• Glass passivated die construction ensures reliable low-cost performance.
• Rated to withstand 1000V peak repetitive reverse voltage.
• Designed as an ideal solution for printed circuit board mounting.
• Lead-free finish compliant with RoHS directives and halogen/antimony free.

Applications

• General purpose AC-DC power supply circuits
• Battery charging systems
• Industrial control equipment

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging details, such as tube quantities. Confirm compliance requirements including RoHS and halogen-free status directly from the manufacturer's datasheet before procurement. Ensure the component meets all applicable automotive quality standards if required for the intended application environment.

Selection Notes

Select this component when a 1000V rating and 4A continuous current capability are required in a KBP package. Evaluate thermal resistance values based on the presence or absence of a heatsink to determine appropriate derating curves. Consider the 500ns reverse recovery time for high-frequency switching applications where standard rectifiers may be insufficient.

Part Context

This part belongs to the KBP series of glass-passivated bridge rectifiers from Diodes Incorporated. The series offers various voltage ratings and current capacities within the same mechanical footprint. The KBP4T10 specifically targets applications requiring robust 1000V isolation and moderate current handling in a compact surface-mountable form factor.

Replacement Considerations

Cross-reference with other 4A, 1000V bridge rectifiers in the KBP package. Verify pinout compatibility and thermal characteristics before substitution. Ensure replacement parts meet identical electrical specifications and regulatory compliance standards.

FAQ

What is the maximum operating junction temperature?

The operating temperature range for the junction (TJ) is -55°C to +150°C.

How is the average forward current affected by heatsinking?

Without a heatsink at TC = +125°C, the IF(AV) is 4A. With a heatsink at TC = +125°C, the IF(AV) is 1.9A.

What is the typical thermal resistance from junction to ambient?

The typical thermal resistance RθJA is 20°C/W.