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MCR12LNG
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Product Detailed Parameters
- Description：SCR 800V 12A TO220AB
- Series：-
- Mfr：onsemi
- Package：Tube
- Voltage - Off State：800 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：8 mA
- Current - Hold (Ih) (Max)：20 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-220
- Voltage - On State (Vtm) (Max)：2.2 V
- Current - On State (It (AV)) (Max)：7.6 A
- Current - On State (It (RMS)) (Max)：12:00 AM
- Current - Off State (Max)：10 µA
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Overview
The MCR12LNG is a Silicon Controlled Rectifier (SCR) manufactured by onsemi, designed for half-wave AC control applications. It features an 800V reverse blocking voltage and an RMS on-state current rating of 12A at 80°C. The device supports a surge current capability of 100A and offers high immunity to dv/dt with a minimum specification of 100 V/µsec at 125°C. Packaged in a rugged TO-220AB configuration with three pins and a tab, it utilizes glass passivated junctions for reliability. The component operates within a temperature range of -40°C to 125°C and includes specified minimum and maximum values for gate trigger current (IGT), gate trigger voltage (VGT), and holding current (IH) to facilitate design integration.
Feature Summary
- Glass passivated junctions ensure reliability and uniformity
- High immunity to dv/dt for robust operation
- Rugged TO-220AB package construction
Applications
- Motor controls
- Heating controls
- Power supplies
Procurement Notes
Verify the specific suffix 'G' indicates lead-free packaging compliance per manufacturer documentation. Confirm the part status as obsolete or active through official onsemi channels before procurement planning. Ensure thermal management requirements align with the 12A RMS rating at 80°C case temperature. Validate that the TO-220AB pinout matches the target circuit board layout. Cross-reference the datasheet revision date to ensure all electrical specifications remain current for the production batch.
Selection Notes
Select this SCR for half-wave AC control circuits requiring 800V blocking capability. Consider the 12A RMS rating against continuous load requirements and derate for ambient temperatures exceeding 80°C. Evaluate the 100A surge capacity for inrush current scenarios. The TO-220AB package suits applications needing efficient heat dissipation via a heatsink. Verify gate trigger parameters match the driving circuit's output capabilities.
Part Context
The MCR12LNG belongs to the MCR series of Silicon Controlled Rectifiers from onsemi. This family is engineered primarily for half-wave AC control applications. The components are characterized by rugged construction and reliable performance in industrial environments. The series includes variants with different voltage and current ratings to suit diverse power control needs.
Replacement Considerations
The MCR12M is a comparable part number within the same product family offering similar electrical characteristics. Verify pin compatibility and thermal resistance differences when substituting. Check for any updates in packaging or material specifications between the legacy and replacement parts.
