IRKC91/04A

Diode Arrays Overview

The IRKC91/04A is a discrete semiconductor diode array manufactured by Vishay General Semiconductor. It features a single pair of common cathode diodes rated for a maximum DC reverse voltage of 400 V and an average rectified current of 100 A per diode. The component utilizes standard recovery speed characteristics suitable for general power conversion applications. It is housed in a chassis mount package, designed for robust industrial environments.

Diode Arrays Feature Summary

• Dual diode configuration with common cathode topology
• High current handling capability at 400 V blocking voltage
• Chassis mount design for efficient thermal management

Diode Arrays Applications

• Industrial power supply rectification
• Motor drive inverter stages
• DC-AC conversion systems

Diode Arrays Procurement Notes

Verify the specific suffix designation to ensure compatibility with required thermal interface materials and mounting hardware. Confirm that the chassis mount footprint matches the intended PCB or heatsink assembly. Check for RoHS compliance status if environmental regulations apply to the final product assembly. Ensure the standard recovery speed meets the switching frequency requirements of the target circuit design.

Diode Arrays Selection Notes

Select this component when high average current capacity is required alongside moderate voltage blocking capabilities. The common cathode arrangement simplifies circuit layout for full-wave or bridge configurations. Consider the chassis mount form factor for applications requiring direct attachment to large heat sinks. Evaluate the standard recovery time against the system's switching losses and electromagnetic interference constraints.

Diode Arrays Part Context

This part belongs to Vishay's high-power diode array series, designed for demanding power electronics applications. It complements other modules in the family offering different voltage ratings or recovery speeds. The chassis mount style distinguishes it from surface-mount alternatives, targeting heavy-duty industrial and automotive power systems.

Diode Arrays Replacement Considerations

Consult official substitution lists for equivalent parts with matching current and voltage ratings. Verify pinout compatibility and thermal resistance values before swapping components. Ensure the replacement device supports the same mounting mechanism and mechanical dimensions.