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Product Detailed Parameters
- Description：TRIAC 600V 8A TO220AB
- Series：-
- Mfr：WeEn Semiconductors
- Package：Tube
- Triac Type：Standard
- Voltage - Off State：600 V
- Current - On State (It (RMS)) (Max)：8:00 AM
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Non Rep. Surge 50, 60Hz (Itsm)：65A, 71A
- Current - Gate Trigger (Igt) (Max)：35 mA
- Current - Hold (Ih) (Max)：20 mA
- Configuration：Single
- Operating Temperature：125°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220AB
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Overview
The BT137-600,127 is a planar passivated sensitive gate four-quadrant triac manufactured by WeEn Semiconductors. It operates in a TO-220AB (SOT78) plastic package designed for through-hole mounting. The device supports an RMS on-state current of 8A and withstands a repetitive peak off-state voltage of 600V. Key electrical parameters include a maximum gate trigger voltage of 1.5V, a maximum holding current of 20mA, and a non-repetitive peak on-state current rating of 65A. The component functions within a junction temperature range from -40°C to 125°C.
Feature Summary
- Sensitive gate architecture enables direct interfacing with microcontrollers and low-power logic circuits.
- Planar passivation technology provides enhanced voltage ruggedness and long-term reliability.
- Four-quadrant triggering capability ensures reliable switching across all gate signal polarities.
Applications
- General purpose bidirectional switching
- Phase control applications
- Lighting dimmers
Procurement Notes
Verify the specific suffix against official datasheets to confirm pinout and thermal characteristics. Confirm RoHS compliance status via manufacturer documentation before integration. Ensure the ordering part number matches the required gate sensitivity class for the target circuit design.
Selection Notes
Select this component when high noise immunity is required due to its sensitive gate structure. Verify that the 8A RMS current rating meets the load requirements. Check that the 600V blocking voltage exceeds the peak line voltage in the application circuit.
Part Context
This triac belongs to the BT137 series of four-quadrant devices. The 'E' variant typically denotes sensitive gate specifications, while other suffixes may indicate different packaging or testing standards. The TO-220AB package facilitates heat dissipation for medium-power industrial applications.
Replacement Considerations
Equivalent parts include the BT137-600E,127 and BT137X-600D,127. Verify gate trigger current limits and package dimensions before substitution to ensure compatibility with existing PCB layouts.
FAQ
What is the maximum gate trigger voltage?
The maximum gate trigger voltage is specified as 1.5V.
Is this component suitable for direct microcontroller interface?
Yes, the sensitive gate design allows direct connection to microcontrollers and low-power logic ICs.
What is the non-repetitive peak on-state current?
The non-repetitive peak on-state current is rated at 65A.
