Description

IRK.91 Series 95A Dual Thyristor Power Module

The IRK.91 Dual Thyristor Power Module is a high-performance SCR module designed for reliable control of high-current AC and DC power circuits. Built with an electrically isolated base plate, this module allows direct mounting to common heatsinks, simplifying mechanical design and enabling compact power assemblies.

Thyristors (SCRs) act as bistable solid-state switches—triggered by a gate signal and remaining conductive while forward biased—making them ideal for controlled rectification, temperature regulation, and motor speed control.

This module is a direct equivalent to IXYS Corporation MCC95-16IO1 and Ruttonsha International Rectifier Ltd IRKT91/16, ensuring easy replacement in existing designs.

Key Features

• Electrically isolated base plate for simplified heatsink mounting
• Isolation voltage: 3500Vrms
• High surge current capability
• Auxiliary cathode terminal for easy wiring
• Large creepage distance for improved safety
• Suitable for single-phase and three-phase bridge configurations
• Compact, encapsulated module for rapid assembly
• Wide circuit configuration flexibility

Technical Specifications (IRK.91)

• Average current rating: 95A
• RMS current: 149A
• Surge current (50Hz): 1785A
• I²t rating: 15910 A²s
• Voltage range: 400V to 1600V
• Operating temperature range: -40°C to +125°C
• Gate trigger current: 150mA

Applications

Ideal for high-power control and rectification in:

• Battery chargers
• Welding equipment
• Electroplating equipment
• Regulated power supplies
• Temperature control circuits
• Motor speed control systems
• AC and DC bridge rectifiers

SKKT106, SKKT92, VS-VSKT91, TT104N16K, TT92N16, MCC9