BT138

BT138 Transistor - High Power Triac for Reliable AC Switching

The BT138 transistor is a high-power triac designed for AC switching applications. It handles up to 12A and 600V. This makes it ideal for industrial and home automation projects. Engineers and hobbyists trust the BT138 for its robust performance.

This triac offers sensitive gate triggering. It switches loads quickly and safely. The BT138 transistor works with resistive and inductive loads. You can use it for motor control, lighting, and heating systems. Its compact TO-220 package fits standard heatsinks.

Beyond basic switching, the BT138 transistor provides precise AC power regulation. It controls the phase angle of AC waveforms. This allows smooth dimming of lights or gradual motor speed changes. The triac handles inrush currents well. It also suppresses voltage spikes effectively. This makes it suitable for noisy electrical environments. The BT138 transistor operates reliably across a wide temperature range. It maintains stable performance even under heavy loads. Its internal construction reduces thermal stress. This extends the lifespan of your circuit. The BT138 transistor is a versatile component for modern electronics.

Key Features

• 12A RMS on-state current for heavy-duty switching tasks
• 600V blocking voltage ensures safe operation in high-voltage circuits
• Sensitive gate trigger current as low as 5mA for easy control
• Planar passivated chip for stable performance over time
• RoHS compliant and lead-free for environmentally friendly builds
• High surge current capability up to 120A for robust protection

Use Cases

The BT138 transistor excels in AC power control. Use it for dimmer switches, fan speed controllers, and motor starters. It also works in solid-state relays and industrial heating controls. Hobbyists and professionals alike choose this triac for reliable switching.

Typical buyers include electronics engineers and repair technicians. They use the BT138 transistor in lighting systems and power tools. Home automation enthusiasts also rely on it. It works well for smart home dimmers and appliance controls. Industrial users integrate it into motor drives and temperature controllers. The BT138 transistor is a top choice for prototyping and production. Its consistent performance saves time and reduces failures.

Upgrade your project with the BT138 transistor from Electra Store. We offer fast shipping and quality components. Order now to get your triac delivered quickly. Build with confidence using the BT138. Don't wait—add the BT138 transistor to your cart today. Experience reliable AC switching for your next design.