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Product Detailed Parameters
- Description：TRIAC 600V 8A TO220AB
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tube
- Triac Type：Standard
- Voltage - Off State：600 V
- Current - On State (It (RMS)) (Max)：8:00 AM
- Voltage - Gate Trigger (Vgt) (Max)：2 V
- Current - Non Rep. Surge 50, 60Hz (Itsm)：100A @ 60Hz
- Current - Gate Trigger (Igt) (Max)：50 mA
- Current - Hold (Ih) (Max)：40 mA
- Configuration：Single
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220AB
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Overview
The Littelfuse 2N6344G is a surface-mount Triac thyristor designed for full-wave AC control applications. It features a rugged Thermowatt construction with glass-passivated junctions to ensure parameter uniformity and stability. The device supports peak repetitive off-state voltages of 600 V and handles an on-state RMS current of 8.0 A at a case temperature of +80°C. It guarantees gate triggering in all four quadrants, making it suitable for light dimmers, motor controls, heating controls, and power supplies.
Feature Summary
- Surface-mount Thermowatt construction for low thermal resistance and high heat dissipation
- All diffused and glass passivated junctions for greater parameter uniformity and stability
- Gate triggering guaranteed in all four quadrants
Applications
- Light dimmers
- Motor controls
- Heating controls
- Power supplies
Procurement Notes
Verify the specific voltage rating required for the application, as the datasheet lists both 600 V (2N6344) and 800 V (2N6349) variants within the same family. Confirm that the TO-220AB package style matches the PCB layout requirements. Ensure the Pb-free designation aligns with environmental compliance standards for the target assembly process.
Selection Notes
Select this component when full-wave AC switching is needed in a surface-mount form factor. Consider the 8.0 A RMS current capability at +80°C case temperature for load sizing. Verify that the operating junction temperature range of -40 to +125°C meets the environmental conditions. Check if the 600 V blocking voltage is sufficient or if the 800 V variant is necessary.
Part Context
The 2N6344G belongs to the Littelfuse Thyristors product line, specifically categorized under surface-mount devices with 600-800V blocking capabilities. It utilizes the CASE 221A package style, which is a standard TO-220AB configuration. This series is engineered for solid-state replacement of mechanical switches in AC circuits requiring reliable full-wave control.
Replacement Considerations
The non-Pb-free version 2N6344 serves as the direct functional equivalent. For higher voltage requirements, the 2N6349 offers 800 V blocking but shares similar current ratings. Verify pinout compatibility and thermal resistance characteristics when substituting.
