S4012R

$0.54

Description：SCR 400V 12A TO220
Series：-

SKU:f6892e2de12e Category: SCRs Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：SCR 400V 12A TO220
Series：-
Mfr：Littelfuse Inc.
Package：Bulk,Bulk
Voltage - Off State：400 V
Voltage - Gate Trigger (Vgt) (Max)：1.5 V
Current - Gate Trigger (Igt) (Max)：20 mA
Current - Hold (Ih) (Max)：40 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：100A, 120A
SCR Type：Standard Recovery
Operating Temperature：-40°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220 Non-Isolated Tab
Voltage - On State (Vtm) (Max)：1.6 V
Current - On State (It (AV)) (Max)：7.6 A
Current - On State (It (RMS)) (Max)：12:00 AM
Current - Off State (Max)：10 µA

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S4012R

Overview

The Littelfuse S4012R is a silicon-controlled rectifier (SCR) from the Sxx12x series, designed for through-hole mounting in TO-220-2 packages. It features a rated repetitive off-state voltage of 400 V and an on-state RMS current of 12 A. The device supports a maximum gate trigger current of 20 mA with a forward voltage drop of 1.6 V. Operating within a temperature range of -40°C to +125°C, it exhibits a holding current of up to 40 mA and a non-repetitive peak on-state current of 120 A.

Feature Summary

Through-hole construction in a TO-220-2 package for robust mechanical mounting
High thermal stability operating across extended industrial temperature ranges
Integrated UL compliance for safety certification requirements

Applications

Industrial power control circuits
AC phase control applications
General purpose switching systems

Procurement Notes

Verify component authenticity by cross-referencing manufacturer markings against official datasheets. Confirm lot traceability and RoHS status prior to integration. Note that availability may be restricted or discontinued; validate current supply chain status directly with authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when a 12 A RMS SCR with 400 V blocking capability is required in a through-hole format. Ensure the application circuit can provide at least 20 mA gate current for reliable triggering. Verify that the thermal management design accommodates the 1.6 V forward voltage drop during conduction periods.

Part Context

This part belongs to the Littelfuse Sxx12x series, which standardizes 12 A SCR specifications across various packaging options. The S4012R specifically denotes the through-hole variant, distinguishing it from surface-mount equivalents like the S4012DRP while maintaining identical electrical performance characteristics.