IRKD91/16A

Diode Arrays Overview

The IRKD91/16A is a high-voltage diode module from the IRK.91 series, manufactured by Vishay General Semiconductor - Diodes Division. It features a dual-series configuration within an ADD-A-PAK GEN V package (TO-240AA). The device supports a maximum repetitive peak reverse voltage of 1600 V and handles a maximum average forward current of 100 A at a case temperature of 100 °C. Key electrical ratings include a maximum RMS forward current of 157 A and a non-repetitive surge current of 2020 A at 50 Hz or 2110 A at 60 Hz. The module operates within a junction temperature range of -40 to 150 °C.

Diode Arrays Feature Summary

• Utilizes Direct Bonded Copper substrate with a solid copper baseplate for superior thermal performance and mechanical ruggedness.
• Features thick aluminum metal die and double stick bonding to enhance high surge capability.
• Includes a click-stop feature to secure electrical terminals against axial pull-out.
• Manufactured without hard mold to eliminate direct stress on the leads.

Diode Arrays Applications

• High voltage regulated power supplies
• Lighting circuits
• Temperature and motor speed control circuits
• UPS systems
• Battery chargers

Diode Arrays Procurement Notes

Verify the specific voltage code suffix matches the required reverse voltage rating, as the IRK.91 series offers options ranging from 400 V to 1600 V. Confirm the ordering information aligns with the dual-series circuit configuration indicated by the 'D' code. Ensure compliance with industrial level qualification standards specified in the datasheet before integration into final designs.

Diode Arrays Selection Notes

Select this component for applications requiring robust high-voltage rectification with high surge tolerance. The ADD-A-PAK GEN V package facilitates easy mounting on heatsinks with increased tolerance for surface roughness. Consider the thermal resistance characteristics and conduction angle limitations when designing the cooling system to maintain junction temperatures within the specified operating range.

Diode Arrays Part Context

This module belongs to the IRK.91 series of standard diodes designed for general-purpose high-voltage applications. The Generation V Add-A-Pak packaging combines excellent thermal performance with mechanical durability. The series includes various voltage codes and circuit configurations to suit different industrial requirements.

Diode Arrays Replacement Considerations

The datasheet notes that the ADD-A-PAK package is fully compatible with TO-240AA standards. Verify pinout compatibility and thermal interface requirements when substituting with other manufacturers' modules in the same package style.

Diode Arrays FAQ

What is the maximum non-repetitive surge current for the IRKD91/16A?

The maximum non-repetitive surge current is 2020 A at 50 Hz (10ms) and 2110 A at 60 Hz (8.3ms).

How does the package design improve thermal performance?

The Generation V Add-A-Pak module uses a Direct Bonded Copper substrate and a solid copper baseplate, which improves thermal spread and allows easier mounting on heatsinks with increased tolerance for surface roughness.

What is the maximum junction operating temperature?

The maximum junction operating temperature range is -40 to 150 °C.