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MCR218-004
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Product Detailed Parameters
- Description：SCR 200V 8A TO220AB
- Series：-
- Mfr：onsemi
- Package：Bulk,Bulk
- Voltage - Off State：200 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：25 mA
- Current - Hold (Ih) (Max)：30 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：100A @ 60Hz
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220AB
- Voltage - On State (Vtm) (Max)：1.8 V
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：8:00 AM
- Current - Off State (Max)：10 µA
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Overview
The MCR218-004 is a silicon controlled rectifier (SCR) from onsemi, designed for half-wave AC control applications. It features glass-passivated junctions and TO-220 construction for low thermal resistance. The device supports peak repetitive off-state voltages ranging from 50 V to 400 V across the series variants. It handles an on-state RMS current of 8.0 A at a case temperature of 70°C with a 180° conduction angle. Peak non-repetitive surge current reaches 100 A. Operating junction temperature ranges from -40°C to +125°C.
Feature Summary
- Glass-passivated junctions provide enhanced durability and reliability.
- TO-220 package construction ensures low thermal resistance and high heat dissipation capabilities.
- Reverse blocking thyristor topology suitable for solid-state switching applications.
Applications
- Motor controls
- Heating controls
- Power supplies
Procurement Notes
Verify the specific voltage rating suffix required for the application, as the MCR218 series includes distinct part numbers for different blocking voltages. Confirm that the ordering suffix matches the desired electrical specification. Ensure the procurement documentation references the correct datasheet revision. Validate that the component meets the necessary environmental standards for the intended deployment environment.
Selection Notes
Select the appropriate voltage variant based on the maximum circuit voltage requirements. Consider the thermal management strategy, as the device requires a case temperature of 70°C or lower to maintain the rated 8.0 A RMS current. Evaluate the gate trigger characteristics against the driving circuit capabilities. Ensure the package style aligns with the available board space and mounting constraints.
Part Context
This component belongs to the MCR218 family of reverse blocking thyristors manufactured by onsemi. The family includes variants with different voltage ratings, specifically designated by suffixes indicating their peak repetitive off-state voltage limits. These devices are engineered for robust performance in industrial and consumer power control environments requiring reliable half-wave rectification or AC switching.
Replacement Considerations
Direct substitutes include MCR218-2G, MCR218-4G, and MCR218-6G, which share identical physical packages and general electrical characteristics but differ in voltage ratings. Verify that the replacement part's voltage rating meets or exceeds the original design requirements before implementation.
