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Product Detailed Parameters
- Description:SCR 200V 800MA TO92
- Series:-
- Mfr:Littelfuse Inc.
- Package:Tape & Box (TB)
- Voltage - Off State:200 V
- Voltage - Gate Trigger (Vgt) (Max):800 mV
- Current - Gate Trigger (Igt) (Max):12 µA
- Current - Hold (Ih) (Max):5 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):16A, 20A
- SCR Type:Sensitive Gate
- Operating Temperature:-40°C ~ 110°C
- Mounting Type:Through Hole
- Package / Case:TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package:TO-92
- Voltage - On State (Vtm) (Max):1.7 V
- Current - On State (It (AV)) (Max):510 mA
- Current - On State (It (RMS)) (Max):800 mA
- Current - Off State (Max):1 µA
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Overview
The Littelfuse EC103B1AP is a sensitive Silicon Controlled Rectifier (SCR) in the Teccor line, designed as a half-wave unidirectional gate-controlled rectifier. It features a TO-92 package with electrically isolated leads and mounting tab. The device supports an on-state current of 0.8 A RMS and 0.51 A average, with repetitive peak off-state forward and reverse voltages rated at 200 V. Gate trigger current is specified at a maximum of 12 µA, enabling high sensitivity for low-power control applications. The component utilizes glass-passivated junctions to ensure long-term reliability and parameter stability against contamination.
Feature Summary
- Electrically isolated TO-92 package allows for low-cost assembly techniques
- Glass-passivated junctions provide rugged protection against contamination
- High gate sensitivity suitable for low-power triggering circuits
Applications
- Low-power AC switching applications
- Battery charger control circuits
- Lighting dimmer controls
Procurement Notes
Verify the specific ordering suffix 'AP' against official Littelfuse documentation to confirm packaging details or lead configuration variations. Ensure the selected variant matches the required isolation rating and thermal characteristics for the intended PCB layout. Cross-reference the part number with authorized distributors to confirm availability and authenticity.
Selection Notes
Select this component when a highly sensitive gate trigger current is required for efficient control circuitry. The 200 V voltage rating suits low-voltage AC systems. Consider the TO-92 package size and electrical isolation requirements for heat dissipation and safety clearance. Verify that the 0.8 A current rating meets the load demands without exceeding thermal limits.
Part Context
This device belongs to the Teccor Sensitive SCRs series, which complements the broader power SCR lineup. The EC prefix typically denotes specific voltage and gate sensitivity combinations within the 0.8 A to 10 A range. The family includes variants with different voltage ratings and gate sensitivities to accommodate diverse control needs.
Replacement Considerations
Direct substitutes include other 0.8 A, 200 V sensitive SCRs with similar gate trigger currents. Check datasheets for matching IT(RMS), VDRM/VRRM, and IGT specifications. Ensure replacement packages maintain compatible pinouts and isolation requirements.
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