WEEN SEMICONDUCTORS BT139 Triac 800V 16A TO-220AB

The WEEN SEMICONDUCTORS BT139 is a planar passivated sensitive gate four quadrant triac, supplied in a SOT78 (TO-220AB) plastic package. Designed for general purpose bidirectional switching and phase control applications, this 'series E' triac can be interfaced directly to microcontrollers, logic integrated circuits and other low power gate trigger circuits.

Its sensitive gate allows triggering in all four quadrants, making it highly versatile for a wide range of control applications. The planar passivation provides excellent voltage ruggedness and long-term reliability, while the high blocking voltage capability (800V) ensures safe operation in demanding environments.

Key Specifications

• Peak Repetitive Off State Voltage: 800V
• On State RMS Current: 16A
• Gate Trigger Voltage Max: 1.5V
• Peak Non Repetitive Surge Current: 170A
• Holding Current Max: 45mA
• Peak On State Voltage: 1.6V
• Case Style: TO-220AB (SOT78)
• Mounting: Through Hole
• No. of Pins: 3
• Operating Temperature Max: 125°C
• Product Range: BT139

This triac is suitable for direct triggering from low power drivers and logic ICs, making it an ideal choice for modern electronic designs where microcontroller interfacing is required.