MCR69-2G

$2.25

Description：SCR 50V 25A TO220AB
Series：-

SKU:ac318ff5a6ff Category: SCRs Brand: Littelfuse Inc.

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Product introduction

MCR69-2G is listed in the Scrs range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is SCR 50V 25A TO220AB. Review the specifications below when checking this part for your BOM.

Scrs specifications for MCR69-2G

Description：SCR 50V 25A TO220AB
Series：-
Mfr：Littelfuse Inc.
Package：Box
Voltage - Off State：50 V
Voltage - Gate Trigger (Vgt) (Max)：1.5 V
Current - Gate Trigger (Igt) (Max)：30 mA
Current - Hold (Ih) (Max)：50 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：300A @ 60Hz
SCR Type：Standard Recovery
Operating Temperature：-40°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220AB
Voltage - On State (Vtm) (Max)：1.8 V
Current - On State (It (AV)) (Max)：16 A
Current - On State (It (RMS)) (Max)：25 A
Current - Off State (Max)：10 µA

Scrs datasheet and documents for MCR69-2G

MCR69-2G

Scrs Overview

The Littelfuse MCR69-2G is a lead-free Silicon Controlled Rectifier (SCR) housed in a TO-220AB thermowatt package. It features glass-passivated junctions and center-gate geometry for uniform current spreading. The device supports a peak repetitive off-state voltage of 50V, with an on-state RMS current of 25A at TC=85°C and an average on-state current of 16A at TC=80°C. It handles a peak discharge current of 750A and a non-repetitive surge current of 300A. Operating junction temperature ranges from -40°C to +125°C.

Scrs Feature Summary

Designed for overvoltage protection in crowbar circuits
Center-gate geometry enables high discharge current capability
Glass-passivated junctions ensure parameter stability and reliability

Scrs Applications

Crowbar circuit overvoltage protection
High capacitor discharge applications
Industrial power control systems

Scrs Procurement Notes

Verify the specific suffix 'G' indicates a lead-free package configuration as documented in the ordering information section. Confirm that the TO-220AB physical dimensions match the required mounting constraints. Ensure the gate trigger characteristics align with the driving circuit requirements before finalizing procurement orders.

Scrs Selection Notes

Select this component when a low-voltage SCR with high surge current handling is required. The 50V rating limits its use to low-voltage DC or rectified AC applications. Consider the thermal resistance values for heat sink design. Verify that the gate trigger current specifications are compatible with the available control logic signals.

Scrs Part Context

This part belongs to the MCR69 series of silicon-controlled rectifiers manufactured by Littelfuse. The series includes variants with different blocking voltage ratings, such as the MCR69-3. These devices share common packaging and structural features but differ in their maximum voltage capabilities.

Scrs Replacement Considerations

Check for other MCR69 series parts like MCR69-3 if higher voltage blocking is needed. Verify pinout compatibility for direct replacement in existing TO-220AB footprints. Ensure thermal management solutions remain adequate for the new component's dissipation requirements.