KBL406M

Overview

The KBL406M is a glass passivated bridge rectifier from the EIC Semiconductor KBL400-KBL410 series, rated for a maximum recurrent peak reverse voltage of 600V and a maximum average forward current of 4.0A at 40°C ambient temperature. It features a peak forward surge current capability of 120A and a typical thermal resistance of 21°C/W. The device operates within a junction temperature range of -55°C to +150°C, with a maximum forward voltage drop of 1.05V at 2A and a reverse leakage current of 10µA at 25°C.

Feature Summary

• Glass passivated chip construction ensures high reliability and low reverse current characteristics.
• Designed for printed circuit board mounting with UL94V-0 flame retardant epoxy materials.
• Terminals are plated and solderable per MIL-STD-202 Method 208 standards.

Applications

• General purpose AC to DC conversion in power supplies
• Half-wave rectification circuits for resistive or inductive loads
• Bridge rectifier applications requiring high surge current capability

Procurement Notes

Verify that the component matches the specific KBL406M designation within the KBL400-KBL410 series documentation. Confirm compliance with Pb/RoHS Free requirements as stated in the manufacturer's datasheet specifications. Ensure the ordering suffix aligns with the intended packaging configuration before finalizing procurement orders.

Selection Notes

Select this component when a 600V blocking voltage and 4.0A continuous current rating are required for PCB-mounted bridge rectification. Consider the 21°C/W thermal resistance for heat dissipation calculations on copper plates. Verify derating curves for capacitive loads, which require a 20% current reduction compared to resistive or inductive load conditions.

Part Context

This part belongs to the KBL400 through KBL410 family of single-phase silicon bridge rectifiers manufactured by EIC Semiconductor. The series offers voltage ratings ranging from 50V to 1000V while maintaining a consistent 4.0A current capacity across all variants. The KBL406M specifically provides the 600V option within this standardized product line.

Replacement Considerations

Cross-reference with other KBL406 equivalents from different manufacturers such as Suntan or ASEMI. Ensure replacement parts maintain identical pinout configurations and meet the same 600V/4.0A electrical ratings for direct substitution in existing designs.

FAQ

What is the maximum non-repetitive peak forward surge current?

The maximum peak forward surge current (IFSM) is 120A for a single half-sine wave cycle at 60Hz.

How does the current rating change for capacitive loads?

For capacitive loads, the output current must be derated by 20% compared to the standard rating for resistive or inductive loads.

What is the typical thermal resistance value?

The typical thermal resistance (RθJA) is 21°C/W, measured with units mounted on a 3" x 3" x 0.11" thick copper plate.