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S4015LTP
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Product Detailed Parameters
- Description：SCR 400V 15A TO220
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：30 mA
- Current - Hold (Ih) (Max)：40 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：188A, 225A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3 Isolated Tab
- Supplier Device Package：TO-220 Isolated Tab
- Voltage - On State (Vtm) (Max)：1.6 V
- Current - On State (It (AV)) (Max)：9.5 A
- Current - On State (It (RMS)) (Max)：15 A
- Current - Off State (Max)：10 µA
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Overview
The S4015LTP is a thyristor manufactured by Littelfuse under the Teccor brand, classified as a Silicon Controlled Rectifier (SCR). It features a rated repetitive off-state voltage of 400 V and an RMS on-state current of 15 A. The device exhibits a maximum holding current of 70 mA and a gate trigger current of 50 mA. Its forward voltage drop is specified at 1.8 V, with a non-repetitive peak on-state current capability of 167 A. The component operates within a temperature range from -40°C to +125°C and utilizes a TO-220-2 through-hole package.
Feature Summary
- High surge current handling capability for robust circuit protection
- Sensitive gate triggering characteristics for efficient control
- Thermal stability across extended industrial operating ranges
Applications
- AC power switching circuits
- Lighting control systems
- Motor speed regulation
Procurement Notes
Verify the specific datasheet revision and RoHS compliance status directly with Littelfuse or authorized distributors before procurement. Confirm that the TO-220-2 package dimensions match the target PCB layout requirements. Ensure thermal management solutions are adequate for the intended RMS current load to maintain junction temperatures within the specified operational limits.
Selection Notes
Select this component when a 400V blocking voltage and 15A continuous current rating are required in a standard through-hole configuration. Compare the 50mA gate trigger current against available drive signals to ensure reliable turn-on. Evaluate the 1.8V forward voltage drop for conduction loss calculations in the specific application environment.
Part Context
This SCR belongs to the S40xxLT series, designed for general-purpose power control applications. The 'S' designation indicates the Silicon Controlled Rectifier type, while '40' denotes the 400V voltage class. The '15' specifies the 15A current rating, and 'LT' typically refers to the low gate current sensitivity variant within the product family.
Replacement Considerations
Direct replacements must match the 400V/15A rating and TO-220-2 package. Verify equivalent gate trigger specifications to ensure compatibility with existing drive circuits without modification.
