IRKH71/12A

$20.52

Description：SCR DBL LOSCR 1200V 75A ADDAPAK
Series：-

SKU:d108028fc7c9 Category: SCRs - Modules Brand: Vishay General Semiconductor - Diodes Division

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Product introduction

Product Detailed Parameters

Description：SCR DBL LOSCR 1200V 75A ADDAPAK
Series：-
Mfr：Vishay General Semiconductor - Diodes Division
Package：Bulk
Structure：Series Connection - SCR/Diode
Number of SCRs, Diodes：1 SCR, 1 Diode
Voltage - Off State：1.2 kV
Current - On State (It (AV)) (Max)：75 A
Current - On State (It (RMS)) (Max)：165 A
Current - Non Rep. Surge 50, 60Hz (Itsm)：1665A, 1740A
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Chassis Mount
Package / Case：ADD-A-PAK (3 + 2)
Voltage - Gate Trigger (Vgt) (Max)：2.5 V
Current - Gate Trigger (Igt) (Max)：150 mA
Current - Hold (Ih) (Max)：250 mA
Grade：-
Qualification：-

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IRKH71/12A

Overview

The IRKH71/12A is a Silicon Controlled Rectifier (SCR) manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum repetitive peak off-state voltage of 1200 V and a maximum RMS on-state current of 109.9 A. The device is housed in an isolated TO-240AA flange mount package with five terminals. It includes a built-in series diode configuration within a single element structure.

Feature Summary

Integrated built-in series diode for combined rectification and control functions
Electrically isolated flange mount construction for efficient thermal management
High-voltage capability suitable for demanding power switching applications

Applications

Industrial motor drives
High voltage power supplies
Welding equipment

Procurement Notes

Verify the specific suffix 'A' against official Vishay documentation to confirm if it denotes a distinct revision or variant compared to the base IRKH71/12 model. Ensure the procurement source provides the original datasheet to validate terminal pinouts and exact electrical tolerances, as distributor listings may lack detailed revision history.

Selection Notes

Select this component when a high-current SCR with integrated rectification is required in a TO-240AA form factor. The 1200 V rating supports medium-voltage AC systems. Verify that the gate trigger current requirements align with the driving circuit capabilities and that the flange mounting style fits the mechanical constraints of the heat sink assembly.

Part Context

This part belongs to the IRKH series of silicon controlled rectifiers from Vishay. These devices are designed for general purpose phase control and rectification in industrial environments. The series typically offers robust surge current handling and reliable operation under high thermal stress conditions common in power electronics.

Replacement Considerations

Cross-reference with Vishay IRKH71/12 for functional equivalence. Check International Rectifier IRKJ71/14A for higher voltage ratings but different current characteristics. Confirm pin compatibility and thermal resistance values before substituting.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.