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Product Detailed Parameters
- Description：TRIAC INT TRIGGER 600V 12A TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Triac Type：Internally Triggered
- Voltage - Off State：600 V
- Current - On State (It (RMS)) (Max)：12:00 AM
- Voltage - Gate Trigger (Vgt) (Max)：-
- Current - Non Rep. Surge 50, 60Hz (Itsm)：100A, 105A
- Current - Gate Trigger (Igt) (Max)：-
- Current - Hold (Ih) (Max)：-
- Configuration：Single
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The AVS12CB is an automatic mains voltage selector kit designed for switch-mode power supplies (SMPS) with a capacity under 500 W. It enables seamless transition between 110 V and 220 V AC inputs at 50/60 Hz frequencies. The device integrates a voltage regulator, triggering pulse train generator for the TRIAC, and parasitic filter to ensure high efficiency and safety during switching. Key electrical parameters include a peak repetitive off-state voltage (V DRM) of ±600 V and an RMS on-state current (I T(RMS)) of 12 A. The component utilizes an uninsulated package design.
Feature Summary
- Automatic compatibility with both 110 V and 220 V AC mains inputs without manual intervention
- Integrated control logic including voltage regulation and TRIAC triggering pulse generation
- Built-in parasitic filtering to maintain signal integrity and reduce electromagnetic interference
Applications
- Switch-mode power supplies operating below 500 W
- Global consumer electronics requiring universal input voltage support
- Industrial equipment needing automatic mains voltage adaptation
Procurement Notes
Verify the specific revision level and packaging configuration against the latest manufacturer datasheet before procurement. Confirm that the uninsulated package rating aligns with the safety isolation requirements of the final assembly. Ensure the SMPS design does not exceed the 500 W power limit specified for this automatic selector kit to maintain operational reliability and compliance with the stated electrical characteristics.
Selection Notes
Select the AVS12CB when designing power supplies that must automatically adapt to varying global mains voltages without user interaction. This component is suitable for applications where space constraints favor an integrated solution over discrete relay-based selectors. Verify that the 12 A current rating and 600 V blocking voltage meet the peak demands of the target power supply topology. Consider the uninsulated package type if the application design provides adequate external insulation barriers.
Part Context
The AVS12CB belongs to STMicroelectronics' range of automatic voltage switches intended for low-to-medium power applications. It simplifies the design of universal input power supplies by replacing mechanical selectors or complex electronic sensing circuits. The kit consolidates voltage detection, regulation, and triac driving functions into a single compact unit, reducing component count and board space while ensuring reliable operation across different regional power standards.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Designers should consult the official STMicroelectronics website for potential obsolescence notices or recommended alternative components within the same product family.
