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SK225RDTP
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Product Detailed Parameters
- Description：SCR 1.2KV 25A TO220AB
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：1.2 kV
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：40 mA
- Current - Hold (Ih) (Max)：100 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：300A, 360A
- 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)：1.6 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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Overview
The SK225RDTP is a standard recovery silicon-controlled rectifier (SCR) manufactured by Littelfuse Inc. It features a peak repetitive off-state voltage of 1.2 kV and an on-state RMS current rating of 25 A. The device operates with a gate trigger voltage of 1.5 V and a gate trigger current of 40 mA. Forward voltage is specified at 1.6 V, while the maximum gate current is 16 A. This component is housed in a TO-220AB through-hole package with three pins.
Feature Summary
- Standard recovery silicon-controlled rectifier design for power control applications
- Through-hole mounting configuration via TO-220AB package
- High voltage blocking capability suitable for industrial circuits
Applications
- Industrial power control systems
- Motor drive circuits
- General purpose rectification tasks
Procurement Notes
Verify the specific Littelfuse datasheet to confirm electrical characteristics match system requirements. Ensure the TO-220AB package dimensions align with PCB layout constraints. Confirm that the standard recovery speed meets the switching frequency needs of the application. Check thermal management requirements based on the 25 A RMS current rating.
Selection Notes
Select this component when high voltage isolation and moderate current handling are required in a through-hole format. The standard recovery characteristic makes it suitable for lower frequency applications compared to fast-recovery alternatives. Consider the 1.2 kV rating for safety margins in AC line applications. Evaluate thermal dissipation capabilities within the TO-220AB housing for continuous operation.
Part Context
This SCR belongs to the SK225xD product range from Littelfuse. The series offers various voltage and current combinations within the same package family. The RDTP suffix indicates specific pinning and packaging details consistent with the TO-220AB form factor used in industrial electronics manufacturing.
Replacement Considerations
Consult official Littelfuse substitution guides for compatible SCRs with matching voltage and current ratings. Verify pinout compatibility before replacing to ensure correct circuit integration. Cross-reference datasheets for equivalent thermal and electrical performance metrics.
FAQ
What is the gate trigger current specification?
The gate trigger current is 40 mA.
Does this component use a surface-mount package?
No, it uses a TO-220AB through-hole package.
