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Product Detailed Parameters
- Description:.8A 400V TH SCR
- Series:-
- Mfr:Central Semiconductor Corp
- Package:Box
- Voltage - Off State:400 V
- Voltage - Gate Trigger (Vgt) (Max):800 mV
- Current - Gate Trigger (Igt) (Max):200 µA
- Current - Hold (Ih) (Max):5 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):10A @ 60Hz
- SCR Type:Standard Recovery
- Operating Temperature:-40°C ~ 125°C (TJ)
- Grade:-
- Qualification:-
- Mounting Type:Through Hole
- Package / Case:TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package:TO-92-3
- Voltage - On State (Vtm) (Max):1.7 V
- Current - On State (It (AV)) (Max):1:00 AM
- Current - On State (It (RMS)) (Max):800 mA
- Current - Off State (Max):5 µA
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Overview
The CS55D PBFREE is a silicon-controlled rectifier (SCR) manufactured by Central Semiconductor Corp. It features a rated repetitive off-state voltage of 400 V and an RMS on-state current of 800 mA. The device operates in through-hole TO-92-3 packages with a maximum junction temperature range from -40°C to +125°C. Key electrical characteristics include a forward voltage of 1.7 V, a gate trigger voltage of 800 mV, and a holding current maximum of 5 mA. Non-repetitive on-state current capability reaches 10 A.
Feature Summary
- Provides reliable switching control for AC power applications via gate-triggered conduction
- Designed for robust operation within extended industrial temperature ranges
- Offers high non-repetitive surge current handling capacity
Applications
- Lighting dimmer circuits
- Motor speed control systems
- Temperature regulation devices
Procurement Notes
Verify the exact part number suffix against official manufacturer documentation to ensure compliance with RoHS directives and lead-free specifications. Confirm package integrity and pinout alignment during incoming inspection. Cross-reference datasheet revisions to validate updated electrical limits before finalizing procurement orders.
Selection Notes
Select this component when a low-current SCR is required for through-hole mounting in compact enclosures. Ensure the circuit design accommodates the specified 800 mA RMS limit and 400 V blocking voltage. Evaluate thermal management requirements based on the 1.7 V forward voltage drop at operating currents.
Part Context
This device belongs to the thyristor family produced by Central Semiconductor Corp. It serves as a discrete semiconductor switch for controlling AC loads. The TO-92-3 packaging allows for standard PCB mounting techniques while maintaining electrical isolation suitable for low-power industrial controls.
Replacement Considerations
Consult official substitution guides for equivalent SCRs with matching voltage and current ratings. Verify that alternative components support the same TO-92-3 footprint and pin configuration to maintain board compatibility.
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