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S4015L56
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Product Detailed Parameters
- Description：SCR 400V 15A TO220
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bulk
- 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
- Supplier Device Package：TO-220 Non-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 Littelfuse S4015L56 is a standard recovery silicon controlled rectifier (SCR) thyristor housed in a TO-220 package. It features a repetitive peak off-state voltage of 400V and an on-state current rating of 15A RMS, with an average on-state current of 9.5A. The device supports a non-repetitive surge current capability of up to 100A and operates at a maximum junction temperature of +150°C. Designed for through-hole mounting, this component provides reliable switching performance for phase control applications requiring robust electrical characteristics.
Feature Summary
- Standard recovery thyristor construction optimized for phase control circuits
- High surge current handling capability for transient protection scenarios
- Through-hole mounting configuration ensuring mechanical stability
Applications
- Phase control applications such as heating regulation
- Motor speed control systems
- General purpose power switching circuits
Procurement Notes
Verify the obsolete lifecycle status before procurement planning. Confirm that the TO-220 non-isolated tab package matches your thermal management requirements. Ensure the 400V voltage rating aligns with your circuit design specifications. Check for available replacement components from Littelfuse or equivalent manufacturers if supply chain continuity is critical for your production timeline.
Selection Notes
Select this component when a standard recovery SCR is required for low-voltage phase control tasks. The 15A RMS rating suits moderate power applications. Consider thermal dissipation needs due to the TO-220 package form factor. Verify gate trigger characteristics against your control circuit capabilities. This part is suitable for industrial and consumer electronics where cost-effective switching is prioritized over high-frequency operation.
Part Context
This device belongs to the Littelfuse S4015 series of power SCRs. These components are designed for general-purpose AC power control. The series offers various voltage ratings to suit different application demands. The S4015L56 specifically targets the 400V segment, providing a balance between voltage blocking capability and current handling capacity for standard industrial and commercial power electronics designs.
Replacement Considerations
Public confirmed substitute part numbers are not explicitly listed in the provided documentation. Consult Littelfuse official resources for direct replacements. Evaluate generic 400V 15A TO-220 SCRs from other manufacturers only after verifying pinout compatibility and electrical parameter equivalence.
