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S8020L
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Product Detailed Parameters
- Description：SCR 800V 20A TO220
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bulk
- Voltage - Off State：800 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)：255A, 300A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- 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)：12.8 A
- Current - On State (It (RMS)) (Max)：20 A
- Current - Off State (Max)：20 µA
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Overview
The Littelfuse S8020L is a Silicon Controlled Rectifier (SCR) from the Teccor Sxx20x series, designed for high-power AC switching applications. It features an 800 V rated repetitive off-state voltage and handles a continuous RMS on-state current of 20 A. The device operates within a temperature range of -40°C to +125°C and utilizes a TO-220-2 through-hole package. Key electrical parameters include a maximum gate trigger current of 30 mA, a forward voltage drop of 1.6 V, and a non-repetitive peak surge current capability of 300 A.
Feature Summary
- High power handling with 20 A RMS current capacity in a standard TO-220-2 package
- Robust transient protection with 300 A non-repetitive surge current rating
- Wide operating temperature range suitable for demanding industrial environments
Applications
- Industrial motor speed control systems
- High-power lighting dimmer circuits
- Temperature regulation and heating control modules
Procurement Notes
Verify component authenticity through authorized Littelfuse distributors or certified partners. Confirm RoHS compliance status via official documentation as required by project specifications. Note that this specific part number may have limited availability or end-of-life status; check current supply chain data before finalizing design-in decisions.
Selection Notes
Select the S8020L when an SCR requires 800 V blocking voltage and 20 A continuous current handling. Ensure the application circuit provides sufficient gate drive current exceeding 30 mA for reliable triggering. Consider thermal management requirements given the TO-220-2 package and 125°C maximum junction temperature limit.
Part Context
The S8020L belongs to the Littelfuse Teccor Sxx20x family of thyristors. This series is engineered for general-purpose AC power control, offering glass-passivated junctions for parameter stability. The component serves as a core switching element in phase-control applications requiring robust performance under high-voltage conditions.
Replacement Considerations
S8020LTP is listed as an alias for this part number. Verify pinout compatibility and electrical specifications against any alternative SCRs from other manufacturers before substitution.
