BTA24-600B Triac 600V 25A TO-220
The BTA24-600B arrives as a compact, familiar power-semiconductor: a TO-220 package with three leads and a metal tab, its black molded body matte and purposeful. The part feels utilitarian no unnecessary ornamentation and the tab and leads announce its role as a device meant to be bolted to a heatsink and integrated into a power stage. Visually it communicates capability: the package size, the robust leads, and the stamped markings all suggest a component intended for repeated switching of AC currents.
When imagined in operation, the triac becomes an invisible gatekeeper of alternating current. It sits between mains and load, remaining inert until a gate pulse awakens it to conduct; then it carries current smoothly through its body until the current falls below holding levels. There is a mechanical-like certainty to its behavior: a predictable turn-on with a clear threshold, steady conduction while on, and an abrupt return to off when conditions change.
Installed and heat-sunk, the BTA24-600B quietly enforces power control. It does not call attention to itself except by the thermal management it requires and the loads it controls. Remove it and the circuit loses its switching capability; fitted correctly it simply does its job robust, reliable, and engineered to handle substantial AC currents in demanding environments.
Features:
- Designed for high RMS on-state current handling (25 A).
- Low thermal resistance for efficient heat transfer to heatsink.
- Available in insulated TO-220AB and non-insulated TO-220AB (and D²PAK) packages.
- Good commutation capability (3- or 4-quadrant options available).
- Snubber less variants available (reduced need for external snubber networks).
Specifications:
| Product Attribute | Attribute Value |
| Product Category: | Triacs |
| Series: | BTA24 |
| Non Repetitive On-State Current: | 260 A |
| Rated Repetitive Off-State Voltage VDRM: | 600 V |
| Off-State Leakage Current @ VDRM IDRM: | 5 uA |
| On-State Voltage: | 1.55 V |
| Holding Current Ih Max: | 75 mA |
| Gate Trigger Voltage – Vgt: | 1.3 V |
| Gate Trigger Current – Igt: | 50 mA |
| Minimum Operating Temperature: | – 40 C |
| Maximum Operating Temperature: | + 125 C |
| Mounting Style: | Through Hole |
| Package/Case: | TO-220-3 |
| Current Rating: | 25 A |
Pinout Diagram:
Footprint Diagram:
Applications:
- Static relay / AC on-off switching.
- Heating regulation (dimmers / heater control).
- Motor starting and speed control (phase control).
- Light dimmers and domestic AC control.
- General purpose AC switching in industrial equipment.
Package contents:
- 1x BTA24-600B Triac 600V 25A TO-220
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