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EC103D2RP
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Product Detailed Parameters
- Description：SCR 400V 800MA TO92
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：50 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 EC103D2RP is a silicon-controlled rectifier (SCR) designed for sensitive gate triggering applications. It features a maximum repetitive off-state voltage of 400 V and an RMS on-state current rating of 800 mA. The device operates with a low gate trigger current of 50 uA, facilitating easy control in logic circuits. Key electrical parameters include a maximum forward voltage of 1.7 V, a holding current of 5 mA, and a non-repetitive peak on-state current of 20 A. It functions within a temperature range starting from -40 C.
Feature Summary
- Sensitive gate architecture enabling reliable triggering with minimal gate current
- Robust thermal performance suitable for demanding industrial environments
- Compact through-hole packaging for efficient board space utilization
Applications
- Lighting control systems
- Motor speed regulation circuits
- Heating element controllers
Procurement Notes
Verify the specific suffix RP against the manufacturer datasheet to confirm package type and reel specifications. Ensure the gate sensitivity requirements match the application's logic output capabilities. Cross-reference the pinout configuration with the target PCB footprint to prevent installation errors during assembly.
Selection Notes
Select this component when low gate drive power is required alongside moderate current handling. Evaluate the 400 V blocking capability against circuit transient voltages. Consider the TO-92 package constraints for thermal dissipation needs compared to higher-power alternatives.
Part Context
This SCR belongs to the EC103xx series, characterized by sensitive gate operation. It serves as a solid-state switch alternative to mechanical relays in AC control applications. The design prioritizes ease of integration with microcontroller outputs due to its low trigger threshold.
Replacement Considerations
Direct substitutes may include other SCRs with matching 400 V ratings and similar gate sensitivities. Verify that replacement parts maintain the same TO-92 package dimensions and pin assignments to ensure mechanical compatibility without redesigning the host circuit.
