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MCR100-4 A1G
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Product Detailed Parameters
- Description：SCR 200V 800MA TO92
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Box (TB)
- Voltage - Off State：200 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)：10A @ 60Hz
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 125°C (TJ)
- Grade：-
- Qualification：-
- 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)：-
- Current - On State (It (RMS)) (Max)：800 mA
- Current - Off State (Max)：10 µA
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Overview
The MCR100-4 A1G is a Silicon Controlled Rectifier (SCR) manufactured by Taiwan Semiconductor Corporation. It features a sensitive gate structure designed for triggering by microcontrollers and logic circuits. The device operates in a TO-92 package with three terminals. Key electrical parameters include an on-state RMS current rating of 0.8A at 80°C, a maximum repetitive peak reverse voltage of 400V, and a maximum non-repetitive peak surge current of 10A. The junction temperature range extends from -40°C to 110°C.
Feature Summary
- Sensitive gate architecture enables reliable triggering from low-power logic interfaces
- Reverse blocking thyristor configuration supports line-powered applications
- High surge current capability accommodates transient load conditions
Applications
- Relay and lamp driver circuits
- Small motor control systems
- Gate drivers for larger thyristors
- Sensing and detection circuits
Procurement Notes
Verify the manufacturer designation matches Taiwan Semiconductor Corporation specifically, as the MCR100 series is widely produced by multiple vendors including ON Semiconductor and Unisonic Technologies. Confirm the suffix 'A1G' corresponds to the specific pinout and marking requirements for your assembly process. Ensure the component meets RoHS compliance standards if required by your design specifications.
Selection Notes
Select this component when a compact SCR with sensitive gate sensitivity is required for low-current switching applications. The 0.8A RMS rating suits light loads, while the 400V blocking voltage provides adequate margin for standard line voltages. Consider the TO-92 package constraints for thermal management and PCB space availability compared to surface-mount alternatives.
Part Context
This part belongs to the MCR100 family of sensitive gate silicon controlled rectifiers. These devices are engineered for high-volume consumer electronics where cost-effective, reliable switching is essential. The family typically includes variants with different voltage ratings, such as 200V, 400V, and 600V options, allowing designers to choose appropriate blocking capabilities for specific circuit requirements.
Replacement Considerations
Compatible substitutes include the MCR100-4 from ON Semiconductor or Unisonic Technologies, provided the pinout and electrical characteristics match. Verify that alternative sources offer the same sensitive gate threshold and surge current ratings. Cross-reference datasheets to ensure identical package dimensions and thermal performance before implementation.
