ChipApex | Global Electronic Components Supplier
MCR12LD
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：SCR 400V 12A TO220AB
- Series：-
- Mfr：onsemi
- Package：Tube,Tube
- Voltage - Off State：400 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
Download product information
Overview
The MCR12LD is a Silicon Controlled Rectifier (SCR) manufactured by onsemi, designed for high-power switching applications. It features a 400V off-state voltage rating and a 12A average on-state current capability. The device is housed in a TO-220AB package, providing robust thermal performance for industrial environments. Key electrical specifications include a maximum gate trigger voltage of 800mV. This component serves as a reliable solution for phase control and power regulation tasks requiring durable semiconductor switching.
Feature Summary
- High voltage blocking capability for demanding power circuits
- Robust thermal design via TO-220AB packaging
- Standardized gate triggering characteristics
Applications
- Industrial motor control systems
- Lighting dimmer circuits
- General purpose power regulation
Procurement Notes
Verify the obsolete status with authorized distributors before procurement planning. Confirm that the TO-220AB pinout matches the target PCB footprint. Ensure the 400V rating meets the circuit's peak reverse voltage requirements. Check for available lifecycle extensions or approved alternates due to discontinuation.
Selection Notes
Select this SCR for applications requiring moderate current handling up to 12A with a 400V blocking voltage. Consider the TO-220AB package for efficient heat dissipation without active cooling. Evaluate the 800mV gate trigger threshold against the driving circuit's output capabilities to ensure reliable turn-on under all operating conditions.
Part Context
The MCR12LD belongs to onsemi's standard discrete thyristor portfolio, historically associated with Fairchild Semiconductor product lines. It represents a legacy component within the company's broader catalog of power semiconductors. The device is categorized under general-purpose SCRs, distinct from specialized fast-switching or high-frequency variants found in modern power electronics designs.
Replacement Considerations
The MCR12LD is listed as an obsolete part number. Engineers should consult official replacement guides for cross-referenced components. Verify that any substitute maintains identical voltage, current, and package specifications to ensure mechanical and electrical compatibility.
