BTB16-600BWRG – 600V 16A Snubberless™ Triac

Product Overview

The BTB16-600BWRG is a 600V, 16A Triac / bidirectional thyristor manufactured by STMicroelectronics. It belongs to ST’s BTA16 / BTB16 / T16xx 16A Triac family, designed for general-purpose mains AC switching, phase control, and AC load control applications.

This device uses ST’s Snubberless™ Triac technology, making it especially suitable for inductive loads where high commutation performance is required. The BTB16 version is supplied in a TO-220AB through-hole package and is commonly used for switching or controlling AC loads such as motors, heaters, lamps, solenoids, relays, and appliance loads. ST’s official eStore page identifies the BTB16-600BWRG as a medium-current Triac with low thermal resistance clip bonding, high commutation capability, and RoHS compliance.

Part Number Breakdown

Competitive Advantages

✔ 600V Triac voltage rating

✔ 16A RMS on-state current

✔ ST Snubberless™ high-commutation technology

✔ Suitable for inductive loads

✔ TO-220AB through-hole power package

✔ Low thermal resistance clip bonding

✔ Useful for AC ON/OFF switching and phase control

✔ Suitable for heaters, motors, light dimmers, appliance controls, static relays, and industrial AC load control

Key Features

1. 600V Blocking Voltage

The BTB16-600BWRG provides a 600V off-state voltage rating, making it suitable for AC mains power control designs.

Benefits include:

• Suitable for 110VAC and 230VAC mains applications
• Provides voltage margin for AC switching transients
• Useful for appliance and industrial AC load control
• Good fit for general-purpose mains switching circuits

2. 16A RMS On-State Current

The device supports 16A RMS on-state current, allowing it to control medium-power AC loads.

Benefits include:

• Suitable for heaters, motors, lamps, and solenoids
• Useful for appliance control boards
• Supports medium-current mains switching
• Provides higher current capability than small signal Triacs

3. Snubberless™ High-Commutation Technology

The W suffix indicates ST’s Snubberless™ version, which is especially recommended for inductive loads because of its high commutation performance. ST’s Triac datasheet states that Snubberless™ versions are recommended for inductive loads due to their high commutation performance. 

Benefits include:

• Better switching behavior with inductive loads
• Helps reduce or simplify external snubber network requirements in suitable circuits
• Useful for motor control and relay-like AC switching
• Improves robustness during current and voltage phase shift conditions

4. TO-220AB Through-Hole Package

The BTB16-600BWRG is supplied in a TO-220AB / TO-220-3 through-hole package. DigiKey and Newark both identify the package as TO-220 / TO-220AB. 

Benefits include:

• Robust mechanical mounting
• Suitable for heatsink attachment
• Good thermal handling for medium-current AC loads
• Practical for appliance, industrial, and power-control boards

5. Low Thermal Resistance Clip Bonding

ST’s official page highlights low thermal resistance with clip bonding for this Triac family. 

Benefits include:

• Better heat transfer from silicon to package
• Improved thermal reliability
• Suitable for continuous AC load switching
• Helps support higher current operation with proper heatsinking

6. General-Purpose AC Switching Capability

ST’s datasheet describes the BTA16 / BTB16 family as suitable for general-purpose mains power AC switching, including ON/OFF operation in static relays, heating regulation, and induction motor starting circuits. 

Benefits include:

• Works as an AC electronic switch
• Can replace mechanical relay functions in some designs
• Suitable for phase-angle control circuits
• Useful for compact appliance and industrial control modules

Applications

AC Load Switching

Suitable for:

• Static relays
• AC load controllers
• Appliance control boards
• Industrial control modules
• Power switching circuits

The Triac can switch AC loads electronically without mechanical contacts.

Heating Regulation

Used in:

• Electric heaters
• Temperature control systems
• Industrial heating elements
• Home appliance heating circuits
• Thermostat-controlled AC loads

ST’s datasheet specifically lists heating regulation as an application area for this Triac family. 

Motor Control and Starting Circuits

Applicable to:

• Appliance motors
• Fan controllers
• Pump controllers
• Induction motor starting circuits
• Motor speed control circuits

The Snubberless™ high-commutation version is especially useful for inductive loads such as motors.

Light Dimmers and Phase Control

Suitable for:

• AC lamp dimmers
• Phase-angle controllers
• Lighting control modules
• Appliance power adjustment circuits
• AC waveform control systems

ST’s datasheet states that the series is recommended for phase control operations in light dimmers and appliance motor speed controllers. 

Solenoid, Valve, and Relay-Like AC Control

Can be used in:

• Solenoid drivers
• Valve control circuits
• AC actuator control
• Relay replacement circuits
• Industrial automation boards

The 600V / 16A rating gives it enough headroom for many medium-power AC loads.