SK625RDTP

Description：SCR 1.6KV 25A TO220AB
Series：-

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

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Product introduction

Product Detailed Parameters

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

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SK625RDTP

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.

Feature Summary

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

Applications

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

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.

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.

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.