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EC103M
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Product Detailed Parameters
- Description：SCR 600V 800MA TO92
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bulk
- Voltage - Off State：600 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)：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 EC103M is a Silicon Controlled Rectifier (SCR) belonging to the EC103xx series, designed for sensitive gate triggering applications. It features a single element configuration housed in a TO-92 cylindrical package with three pins. The device supports an RMS on-state current of 0.8 A and offers a repetitive peak off-state voltage rating of 600 V. Key electrical characteristics include a maximum DC gate trigger current of 0.2 mA, ensuring low power control requirements. The component operates within a temperature range from -40°C to +110°C and complies with RoHS standards.
Feature Summary
- Sensitive gate architecture enables reliable triggering with minimal gate drive current.
- Robust 600 V blocking capability suitable for medium-voltage AC switching applications.
- Compact TO-92 through-hole package facilitates easy integration into standard PCB layouts.
Applications
- AC light dimming circuits
- Motor speed control systems
- Temperature control regulators
Procurement Notes
Verify the specific suffix designation against official Littelfuse documentation to confirm exact voltage ratings and tolerance levels. Ensure compliance with project-specific lead-free or RoHS requirements by checking the manufacturer's latest datasheet revision. Confirm package orientation and pinout compatibility during the sourcing phase to prevent assembly errors.
Selection Notes
Select this component when a sensitive gate SCR is required for low-power control signals. The 0.8 A current rating defines the maximum continuous load capacity. Verify that the 600 V voltage rating exceeds the peak line voltage in the target application. Consider the TO-92 package constraints regarding thermal dissipation and physical space availability on the circuit board.
Part Context
The EC103M is part of the broader EC103xx family of sensitive gate SCRs manufactured by Littelfuse. This series typically includes variants with different voltage ratings, such as 400 V or 800 V options, while maintaining similar current handling capabilities. These devices are commonly used in consumer electronics and industrial controls where cost-effective and reliable AC switching is necessary.
Replacement Considerations
Direct substitutes may include other sensitive gate SCRs from manufacturers like Teccor Electronics or STMicroelectronics with matching 0.8 A current and 600 V voltage ratings. Verify pinout compatibility and thermal characteristics before substitution. Cross-reference with Littelfuse's own EC103 series variants if higher or lower voltage ratings are acceptable.
