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BTA24-600B TO-220 TRIAC 24A 600V Snubberless AC Power Switch
BTA24-600B TO-220 TRIAC 24A 600V Snubberless AC Power Switch
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BTA24-600B TO-220 Snubberless TRIAC — 24A / 600V AC Power Switch
The BTA24-600B is a high-current Snubberless™ TRIAC from STMicroelectronics in a TO-220AB package, rated at 24A RMS and 600V blocking voltage. Its Snubberless design eliminates the need for an RC snubber network in most inductive load applications, simplifying circuit design for AC motor control, light dimmers, and solid-state relays.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | BTA24-600B |
| Package | TO-220AB (insulated tab) |
| RMS On-State Current (IT) | 24A |
| Peak Repetitive Voltage (VDRM) | 600V |
| Gate Trigger Current (IGT) | 50mA max (all quadrants) |
| Holding Current (IH) | 40mA typical |
| On-State Voltage (VT) | 1.55V @ 24A |
| dV/dt (Snubberless) | 500V/μs |
| Operating Temperature | −40°C to +125°C |
Why Choose BTA24-600B?
- Snubberless Design — 500V/μs dV/dt rating eliminates RC snubber in most inductive load circuits
- All-Quadrant Triggering — Gate triggers in all four quadrants for flexible control circuit design
- 24A Current Rating — Controls loads up to ~5kW @ 230V AC
- Insulated TO-220 Tab — Heatsink mounting without electrical isolation pad
- STMicroelectronics Quality — Industry-leading TRIAC manufacturer with consistent parameters
Typical Applications
- AC motor speed control (fans, pumps, power tools)
- Light dimmer circuits (incandescent, halogen)
- Solid-state relay (SSR) output stage
- Heating element power control (ovens, water heaters)
- Soft-start circuits for AC motors
- Phase-angle power control with MOC3021/MOC3041 optocoupler
Typical Gate Drive Circuit
Use MOC3021 (random phase) or MOC3041 (zero-cross) optocoupler for isolated gate drive from MCU. Gate resistor: 180Ω–360Ω between optocoupler output and TRIAC gate.
FAQ
Q: What’s the difference between BTA24-600B and BTA24-600BW?
A: BTA24-600BW has a fully insulated TO-220 package (no exposed metal tab). BTA24-600B has an insulated tab but exposed metal back — verify your heatsink isolation requirements.
Q: Can BTA24-600B control a 230V 3kW motor?
A: Yes — 3kW @ 230V = 13A RMS, well within the 24A rating. Use a heatsink rated for the power dissipation (VT × IT ≈ 1.55V × 13A = ~20W).
Package Contents
- 1× BTA24-600B TO-220 Snubberless TRIAC
- ★Product Description
- ★About us
- ★Custom cable
BTA24-600B TO-220 Snubberless TRIAC — 24A / 600V AC Power Switch
The BTA24-600B is a high-current Snubberless™ TRIAC from STMicroelectronics in a TO-220AB package, rated at 24A RMS and 600V blocking voltage. Its Snubberless design eliminates the need for an RC snubber network in most inductive load applications, simplifying circuit design for AC motor control, light dimmers, and solid-state relays.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | BTA24-600B |
| Package | TO-220AB (insulated tab) |
| RMS On-State Current (IT) | 24A |
| Peak Repetitive Voltage (VDRM) | 600V |
| Gate Trigger Current (IGT) | 50mA max (all quadrants) |
| Holding Current (IH) | 40mA typical |
| On-State Voltage (VT) | 1.55V @ 24A |
| dV/dt (Snubberless) | 500V/μs |
| Operating Temperature | −40°C to +125°C |
Why Choose BTA24-600B?
- Snubberless Design — 500V/μs dV/dt rating eliminates RC snubber in most inductive load circuits
- All-Quadrant Triggering — Gate triggers in all four quadrants for flexible control circuit design
- 24A Current Rating — Controls loads up to ~5kW @ 230V AC
- Insulated TO-220 Tab — Heatsink mounting without electrical isolation pad
- STMicroelectronics Quality — Industry-leading TRIAC manufacturer with consistent parameters
Typical Applications
- AC motor speed control (fans, pumps, power tools)
- Light dimmer circuits (incandescent, halogen)
- Solid-state relay (SSR) output stage
- Heating element power control (ovens, water heaters)
- Soft-start circuits for AC motors
- Phase-angle power control with MOC3021/MOC3041 optocoupler
Typical Gate Drive Circuit
Use MOC3021 (random phase) or MOC3041 (zero-cross) optocoupler for isolated gate drive from MCU. Gate resistor: 180Ω–360Ω between optocoupler output and TRIAC gate.
FAQ
Q: What’s the difference between BTA24-600B and BTA24-600BW?
A: BTA24-600BW has a fully insulated TO-220 package (no exposed metal tab). BTA24-600B has an insulated tab but exposed metal back — verify your heatsink isolation requirements.
Q: Can BTA24-600B control a 230V 3kW motor?
A: Yes — 3kW @ 230V = 13A RMS, well within the 24A rating. Use a heatsink rated for the power dissipation (VT × IT ≈ 1.55V × 13A = ~20W).
Package Contents
- 1× BTA24-600B TO-220 Snubberless TRIAC
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