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EC103B3
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Product Detailed Parameters
- Description：SCR 200V 800MA TO92
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bulk
- Voltage - Off State：200 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：500 µA
- Current - Hold (Ih) (Max)：8 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)
- 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 EC103B3 is a sensitive silicon-controlled rectifier (SCR) designed for half-wave unidirectional applications. It features an on-state current rating of 0.8 A and a repetitive peak off-state voltage of 200 V. The device utilizes a Compak surface-mount package with glass-passivated junctions for parameter stability. Key electrical characteristics include a maximum DC gate trigger current of 500 µA, a peak on-state voltage of 1.7 V, and a non-repetitive peak surge current capability of 50 A.
Feature Summary
- Glass-passivated chip junctions provide a rugged barrier against contamination to ensure long-term reliability.
- Compact three-leaded Compak surface-mount package design allows for space-saving integration.
- High gate sensitivity enables reliable triggering with low control power requirements.
Applications
- Half-wave rectification circuits
- Low-power AC switching applications
- Phase control systems
Procurement Notes
Verify the specific ordering suffix against official Littelfuse documentation to confirm exact pinout and lead configuration. Confirm that the Compak package variant matches the intended PCB footprint. Ensure the selected component meets all relevant regulatory compliance standards required for the final assembly.
Selection Notes
Select this component when a compact surface-mount SCR is required for low-current applications. The 500 µA gate sensitivity suits circuits needing minimal drive current. Verify thermal management requirements against the specified operating temperature range and derating curves for the target ambient conditions.
Part Context
This device belongs to the Teccor line of sensitive SCRs, which complement the manufacturer's broader power semiconductor portfolio. These components are engineered for cost-effective assembly in consumer electronics and industrial control systems where small form factors and reliable switching are critical.
Replacement Considerations
Cross-reference with other 0.8 A, 200 V sensitive SCRs in the Compak package. Verify compatibility of gate trigger parameters and physical dimensions before substitution.
FAQ
What is the maximum DC gate trigger current for the EC103B3?
The maximum DC gate trigger current is 500 µA.
Does the EC103B3 feature electrical isolation?
No, the EC103B3 uses a non-isolated Compak package; electrical isolation is typically available in TO-220 variants.
What is the peak on-state voltage of this device?
The peak on-state voltage is 1.7 V.
