SK625RDTP

Description：SCR 1.6KV 25A TO220AB
Series：-

SKU:57c1fcff6cca Category: SCRs Brand: Littelfuse Inc.

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Product introduction

SK625RDTP is listed in the Scrs range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is SCR 1.6KV 25A TO220AB. Review the specifications below when checking this part for your BOM.

Scrs specifications for SK625RDTP

Description：SCR 1.6KV 25A TO220AB
Series：-
Mfr：Littelfuse Inc.
Package：Tube
Voltage - Off State：1.6 kV
Voltage - Gate Trigger (Vgt) (Max)：1.5 V
Current - Gate Trigger (Igt) (Max)：35 mA
Current - Hold (Ih) (Max)：120 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：250A, 300A
SCR Type：Standard Recovery
Operating Temperature：-40°C ~ 125°C (TJ)
Grade：-
Qualification：-
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 SK625RDTP

SK625RDTP

Scrs Overview

The Littelfuse SK625RDTP is a standard silicon-controlled rectifier (SCR) from the SK625xD series, rated for 25 A RMS on-state current and 1600 V repetitive peak off-state voltage. Housed in a non-isolated TO-220AB package with a common mounting tab, it features a gate trigger current of 35 mA and a maximum average on-state current of 16 A at 90°C case temperature. The device supports a peak non-repetitive surge current of 250 A at 50 Hz and offers a junction-to-case thermal resistance of 1.0 °C/W.

Scrs Feature Summary

RoHS compliant construction
Electrically isolated LD-package option available within the series
UL Recognized for 2500V RMS isolation

Scrs Applications

AC solid-state switches
Industrial power tools
Line rectification at 50/60Hz

Scrs Procurement Notes

Verify that the specific application requires a non-isolated mounting tab configuration, as the SK625LD variant provides electrical isolation. Confirm that the system's thermal management can maintain the case temperature below 90°C to support the rated 16 A average current. Ensure the gate drive circuitry can supply the required 35 mA trigger current under all operating conditions.

Scrs Selection Notes

Select this component when a high-voltage, unidirectional switch is needed for phase control applications. Compare against the SK625LD if electrical isolation between the heatsink and the anode is required. Verify that the di/dt rating of 100 A/µs meets the circuit's switching speed requirements to prevent device failure during turn-on.

Scrs Part Context

This part belongs to the SK625xD family of 25 Amp Standard SCRs designed for robust phase control. The 'RD' suffix specifically denotes the non-isolated TO-220R package, distinguishing it from the electrically isolated 'LD' version. Both variants share identical electrical ratings but differ in their thermal and isolation characteristics.