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Product Detailed Parameters
- Description:SCR 400V 12A ITO220AB
- Series:Teccor®
- Mfr:Littelfuse Inc.
- Package:Tube
- 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):120A, 130A
- SCR Type:Sensitive Gate
- Operating Temperature:-40°C ~ 125°C (TJ)
- Grade:-
- Qualification:-
- Mounting Type:Through Hole
- Package / Case:TO-220-3 Full Pack, Isolated Tab
- Supplier Device Package:ITO-220AB
- 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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Overview
The Littelfuse S4012LTP is a Silicon Controlled Rectifier (SCR) belonging to the Sxx12x series, designed for high-power switching applications. It features a TO-220AB package with a maximum repetitive off-state voltage of 400 V and an on-state RMS current rating of 12 A. The device exhibits a low forward voltage drop of 1.6 V and requires a gate trigger current of 20 mA at 1.5 V. It operates within a temperature range of -40°C to +125°C and supports non-repetitive peak currents up to 120 A.
Feature Summary
- High thermal stability enabling operation in extreme environments
- Robust surge handling capability for transient protection
- Low conduction losses for improved system efficiency
Applications
- Industrial motor control systems
- AC power regulation circuits
- Solid-state relay implementations
Procurement Notes
Verify component authenticity through authorized Littelfuse distributors or certified supply chain partners. Confirm RoHS compliance status and specific lot traceability data prior to integration. Ensure storage conditions maintain moisture sensitivity levels according to manufacturer guidelines for leaded packages.
Selection Notes
Select this component when a 12 A RMS current capacity and 400 V blocking voltage are required in a standard TO-220 form factor. Consider the 20 mA gate drive requirement for circuit interface design. Evaluate thermal management needs based on the 1.6 V forward voltage drop under load conditions.
Part Context
This SCR belongs to the Sxx12x family, characterized by 12 A ratings and 400 V voltage options. The S4012LTP variant specifically utilizes a leaded TO-220AB package, distinguishing it from surface-mount alternatives like the S4012DRP. This packaging facilitates through-hole mounting for robust mechanical connections.
Replacement Considerations
Direct functional equivalents include the S4012R and S4012RTP. Verify pinout compatibility and thermal resistance specifications before substitution. Ensure replacement parts meet identical voltage and current derating requirements.
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