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MCR100-7 A1G
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Product Detailed Parameters
- Description：SCR 500V 800MA TO92
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Box (TB)
- Voltage - Off State：500 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 MCR100-7A1G 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 the TO-92 package with three terminals. Key electrical parameters include an RMS on-state current of 0.8 A at 80°C, a maximum repetitive peak reverse voltage of 400 V, and a non-repetitive peak forward surge current capability of 10 A. The component supports a junction temperature range from -40°C to 125°C.
Feature Summary
- Sensitive gate architecture enables reliable triggering via low-power control signals
- Reverse blocking thyristor configuration provides high voltage isolation
- Halogen-free compliant packaging meets environmental standards
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 as Taiwan Semiconductor Corporation against the specific suffix A1G. Confirm the package type matches the required TO-92 form factor. Ensure the voltage rating aligns with the circuit requirements. Check for halogen-free compliance if environmental regulations apply. Validate the datasheet revision date for accurate parameter references.
Selection Notes
Select this component when a compact SCR is needed for low-current switching applications. The sensitive gate feature simplifies interface design with digital logic. Consider the 0.8 A RMS current limit for load sizing. Evaluate the 400 V reverse voltage rating against peak line voltages. Assess thermal management needs for the TO-92 package under continuous operation.
Part Context
This part belongs to the MCR100 series of sensitive gate silicon controlled rectifiers. These devices are widely used in consumer electronics due to their cost-effectiveness and ease of use. The series typically includes variants with different voltage ratings, such as 200 V, 400 V, and 600 V options. The MCR100-7 variant specifically denotes the 400 V blocking voltage class within this family.
Replacement Considerations
Direct replacements may include MCR100-6 or MCR100-8 from other manufacturers, provided the voltage and current ratings match. Verify pinout compatibility for TO-92 packages. Cross-reference datasheets for gate trigger current specifications to ensure proper interfacing. Generic SCRs with similar ratings can be used if pin configurations allow.
