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S2012R
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Product Detailed Parameters
- Description：SCR 200V 12A TO220
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bulk
- Voltage - Off State：200 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)：100A, 120A
- 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)：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 S2012R is a non-latching silicon controlled rectifier (SCR) designed for phase control applications. It features a TO-220AB package with three leads and utilizes through-hole mounting technology. The device supports an off-state voltage of 200V and provides an on-state current rating of 7.6A average, with a repetitive peak current of 12A. The maximum gate trigger voltage is specified at 1.5V. This component is currently classified as obsolete by the manufacturer.
Feature Summary
- Non-latching SCR configuration suitable for AC phase control
- Through-hole TO-220AB packaging for robust thermal dissipation
- Standard gate triggering characteristics for reliable switching
Applications
- AC motor speed controls
- Lighting dimmer circuits
- Heating element regulation
Procurement Notes
Verify availability status carefully as this part is marked obsolete. Check for end-of-life notices or last-time buy windows from authorized distributors. Ensure compatibility with existing PCB footprints before sourcing alternatives. Confirm that the TO-220-3 lead pitch matches design requirements. Review datasheet revisions for any parameter shifts in legacy stock.
Selection Notes
Consider the 200V blocking capability when designing for low-voltage AC systems. Evaluate the 7.6A average current limit against continuous load requirements. Assess thermal management needs given the TO-220 package size. Verify gate drive circuitry can supply sufficient current to trigger the 1.5V threshold reliably under varying temperature conditions.
Part Context
This component belongs to the standard phase control SCR family from Littelfuse. It shares functional similarities with other non-latching SCRs but is distinguished by its specific 200V voltage rating and TO-220 form factor. It serves as a discrete switching element in power electronics rather than an integrated module.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation due to the obsolete status. Designers should consult Littelfuse engineering support for direct cross-reference recommendations or equivalent modern replacements with compatible electrical ratings.
