STMicroelectronics BTA06-600SWRG

Overview

BTA06-600SWRG from STMicroelectronics is a 6 A, 600 V snubberless logic-level triac in insulated TO-220AB package, rated for 2500 VRMS voltage isolation between tab and terminals. It features 10 mA maximum gate trigger current (IGT), 1.3 V max gate trigger voltage (VGT), and 50 A non-repetitive surge current, designed for phase-control AC switching in lighting and motor control.

For engineers reviewing the BTA06-600SWRG datasheet, BTA06-600SWRG pinout, BTA06-600SWRG application, or BTA06-600SWRG equivalent, key selection criteria include commutation robustness on inductive loads, gate sensitivity at low drive levels, thermal resistance (Rth(j–c) = 2.7 °C/W), and UL-rated insulated tab compliance.

Technical Context

This triac operates in three quadrants (I, II, III) with logic-level gate drive compatibility, enabling direct interface with microcontrollers and optocouplers without external amplification. Its snubberless architecture eliminates need for RC snubbers in inductive load switching, supported by high dV/dt immunity (min. 400 V/µs at 125°C) and critical commutation dI/dt rating (min. 3.5 A/ms).

The device uses internal ceramic insulation to achieve 2500 VRMS isolation between the metal tab and main terminals, satisfying UL File E81734 requirements. Thermal design is enabled by Rth(j–c) = 2.7 °C/W and Rth(j–a) = 60 °C/W, allowing 6 A RMS conduction at Tc = 105°C with appropriate heatsinking.

Key Specifications

Pinout & Package

Package: TO-220AB insulated variant with electrically isolated metal tab rated at 2500 VRMS (UL E81734). Tab serves as A2 terminal and provides mechanical mounting and thermal path.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar triac-based AC switching applications.

Compared with BTB06-600SW and BTA06-600CW, the BTA06-600SWRG offers unique integration of logic-level gate drive, snubberless operation, and UL-certified insulation-enabling simplified, safer, and more compact AC control designs without external protection or isolation components.

Availability

BTA06-600SWRG is available at Aetrix Electronics and suitable for light dimming systems, induction motor start circuits, heating regulation, and static relay modules requiring stable component supply across industrial and consumer production cycles.

Supply support for BTA06-600SWRG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.

The BTA/BTB06 series belongs to ST's high-reliability power discrete portfolio, engineered specifically for robust, snubberless AC switching in demanding inductive and resistive load environments.

FAQ

What is the maximum junction temperature for continuous operation?

The BTA06-600SWRG has an operating junction temperature range of –40°C to +125°C. For sustained 6 A RMS conduction, case temperature must be maintained ≤105°C using appropriate heatsinking, as defined by Rth(j–c) = 2.7 °C/W and derating curves in Figure 2 of the datasheet.

Can this triac replace a mechanical relay in a 240 VAC resistive load application?

Yes - with proper heatsinking and gate drive design, the BTA06-600SWRG reliably switches 240 VAC resistive loads up to 6 A RMS. Its 600 V VDRM provides margin above peak line voltage (≈340 V), and its 60 A ITSM handles brief inrush currents typical of cold filament or heating element startup.

Is the insulated tab rated for safety-critical isolation?

Yes - the insulated metal tab is UL-recognized (File E81734) for 2500 VRMS working voltage isolation between the tab and terminals. This permits direct mounting to grounded heatsinks in Class I equipment without additional creepage/clearance barriers.

Does it require a snubber circuit when driving an inductive fan motor?

No - the "snubberless" designation means the BTA06-600SWRG is characterized and guaranteed for reliable commutation without external RC snubbers, even with inductive loads like fan motors, thanks to its high dV/dt (400 V/µs) and dI/dt (3.5 A/ms) ratings at 125°C junction temperature.