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EC103D1RP
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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)：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 EC103D1RP is a sensitive gate Silicon Controlled Rectifier (SCR) designed for phase control applications. It features a rated repetitive off-state voltage of 400 V and an RMS on-state current of 800 mA. The device operates with a maximum gate trigger current of 500 µA and a gate trigger voltage of 800 mV. It exhibits a forward voltage drop of 1.7 V at full load and maintains a holding current of up to 5 mA. The component supports a non-repetitive peak on-state current of 20 A and functions within a temperature range of -40°C to +110°C. It is housed in a TO-92 through-hole package.
Feature Summary
- Sensitive gate architecture enables triggering with microampere-level currents from low-power sources such as sense coils or proximity switches.
- Robust thermal performance allows reliable operation across a wide industrial temperature range without derating requirements.
Applications
- Heating element phase control circuits
- Motor speed control systems
- Lighting dimmer applications
Procurement Notes
Verify the specific suffix 'RP' against the manufacturer's official datasheet to confirm tape-and-reel packaging and exact electrical tolerances. Ensure the selected variant matches the required gate sensitivity and voltage ratings for the target circuit design before finalizing procurement.
Selection Notes
Select this component when a low-gate-current SCR is required for precise phase control. Confirm that the 400 V blocking voltage and 800 mA continuous current rating exceed the circuit's maximum operating conditions. Verify compatibility with the TO-92 package constraints and through-hole assembly processes.
Part Context
This part belongs to the EC103xx series of sensitive gate SCRs manufactured by Littelfuse. The series provides unidirectional switching capabilities optimized for applications requiring easy triggering from microprocessor outputs or sensor interfaces, distinguishing it from standard gate devices.
Replacement Considerations
Cross-reference with EC103D1 for bulk packaging equivalents. Verify pinout compatibility and electrical parameters against other 400V 0.8A sensitive gate SCRs in the TO-92 package before substitution.
FAQ
What is the maximum gate trigger current for the EC103D1RP?
The maximum DC gate trigger current is specified as 500 µA.
Does the EC103D1RP support bidirectional conduction?
No, the EC103D1RP is a Silicon Controlled Rectifier (SCR) and supports only unidirectional current flow.
What is the maximum junction temperature for this device?
The maximum operating junction temperature is +110°C.
