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MCR12DCMT4G
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Product Detailed Parameters
- Description：SCR 600V 12A DPAK
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Off State：600 V
- Voltage - Gate Trigger (Vgt) (Max)：1 V
- Current - Gate Trigger (Igt) (Max)：20 mA
- Current - Hold (Ih) (Max)：40 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：100A @ 60Hz
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252 (DPAK)
- Voltage - On State (Vtm) (Max)：1.9 V
- Current - On State (It (AV)) (Max)：7.8 A
- Current - On State (It (RMS)) (Max)：12:00 AM
- Current - Off State (Max)：10 µA
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Overview
The MCR12DCMT4G is a surface-mount silicon-controlled rectifier (SCR) from Littelfuse, designed for half-wave AC control applications. It operates with an RMS on-state current of 12 A and offers repetitive peak off-state voltage ratings of 600 V or 800 V. The device features low-level triggering characteristics, requiring a maximum gate trigger current of 20 mA at 25 °C. Packaged in a lead-free DPAK (TO-252) housing, it supports a virtual junction temperature range from -40 °C to +125 °C. Key electrical parameters include a holding current of up to 40 mA and a non-repetitive surge current capability of 100 A.
Feature Summary
- ESD protection rated above 8000 V via Human Body Model and above 400 V via Machine Model
- UL recognized compound meeting flammability rating V-0
- Passivated die surface ensuring reliability and uniformity
- Low-level triggering and holding characteristics
Applications
- Motor controls
- Heating controls
- Power supplies
Procurement Notes
Verify the specific voltage rating suffix (M for 600 V or N for 800 V) required for the circuit design, as the base part number covers both variants. Confirm the Pb-free package designation matches environmental compliance requirements. Ensure the ordering quantity aligns with the standard tape and reel base quantity of 2500 units to match manufacturing packaging specifications.
Selection Notes
Select this component for half-wave AC control circuits where space constraints necessitate a surface-mount TO-252 package. Evaluate thermal resistance values against the expected average on-state current and conduction angle to ensure case temperatures remain within limits. Verify that the gate drive circuit can supply the necessary trigger current across the full operating temperature range.
Part Context
This device belongs to the MCR12DC series of surface mount SCRs manufactured by Littelfuse. The series includes variants with different blocking voltage ratings, specifically the MCR12DCM and MCR12DCN models. These thyristors are engineered for compact designs requiring reliable switching in power control environments.
Replacement Considerations
Direct substitutes include other MCR12DC series parts such as MCR12DCNT4G, provided the voltage rating matches the application needs. Cross-reference pinouts and thermal characteristics when considering alternative manufacturers' TO-252 SCRs.
