STMicroelectronics BTA10-600BWRG

Overview

BTA10-600BWRG from STMicroelectronics is a 10 A, 600 V Snubberless™ triac in insulated TO-220AB package, designed for robust AC mains switching in inductive loads. It delivers 50 mA gate trigger current (IGT), 1000 V/µs dV/dt immunity at 125 °C, and 2500 VRMS isolation between tab and circuit, enabling direct mounting on heatsinks without additional insulation.

For engineers reviewing the BTA10-600BWRG datasheet, BTA10-600BWRG pinout, BTA10-600BWRG application, or BTA10-600BWRG equivalent, key selection criteria include commutation performance on inductive loads, thermal resistance (Rth(j-c) = 2.4 °C/W), UL1557 certification (file E81734), and compatibility with phase-control dimming and motor speed control circuits.

Technical Context

This Snubberless™ 3-quadrant triac eliminates external snubbers in inductive load switching by sustaining ≥1000 V/µs critical dV/dt and ≥9 A/ms (dI/dt)c at 125 °C. Its internal ceramic insulation enables 2500 VRMS isolation, meeting UL1557 requirements without auxiliary barriers.

The device operates across -40 to +125 °C junction temperature, supports full-sine RMS current up to 10 A at Tc = 95 °C, and features low on-state voltage (VTM ≤ 1.55 V at 25 °C) and dynamic resistance (RD ≤ 40 mΩ), minimizing conduction losses in high-duty-cycle applications.

Key Specifications

Pinout & Package

Insulated TO-220AB package with metal tab electrically isolated from terminals; tab rated for 2500 VRMS isolation. Mounting hole centered, leads bent for through-hole PCB insertion.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTA10-600BW, BTA10-600BWRG adds traceable tube packaging without electrical change; versus T1050-8G, it trades SMT compatibility and lower Rth(j-c) for certified isolation and through-hole robustness-critical for safety-agency approvals in end equipment.

Availability

BTA10-600BWRG is available at Aetrix Electronics and suitable for induction motor starting, light dimming, heating regulation, and static relay replacement requiring stable component supply, regulatory compliance, and long-term manufacturability.

Supply support for BTA10-600BWRG 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, designing and manufacturing analog, MCU, power, and sensing solutions for automotive, industrial, and consumer markets.

BTA10-600BWRG belongs to ST's high-reliability Snubberless™ triac product line, engineered specifically for robust, snubber-free AC power control in inductive and resistive mains-connected equipment.

FAQ

What is the maximum junction temperature for continuous operation?

The BTA10-600BWRG has an operating junction temperature range of -40 to +125 °C. Continuous operation at 10 A RMS requires case temperature ≤ 95 °C, as specified in Table 1. Exceeding this limit risks thermal runaway due to reduced holding current and increased leakage at elevated Tj.

Does the insulated tab require thermal compound when mounted to a heatsink?

Yes-thermal interface material (e.g., silicone grease or phase-change pad) is required between the insulated tab and heatsink to ensure low thermal resistance. The 2.4 °C/W Rth(j-c) rating assumes optimal thermal contact; air gaps significantly degrade heat transfer and may cause premature thermal shutdown.

Can BTA10-600BWRG replace a standard 4Q triac in existing designs?

It can replace 4Q triacs only in quadrant I, II, and III applications-its Snubberless™ 3Q architecture blocks conduction in quadrant IV. Gate drive must be referenced to A1, and triggering circuits must avoid negative gate pulses relative to A1 to prevent unintended behavior.

Is UL1557 certification applicable to the entire TO-220AB insulated package?

Yes-UL1557 certification (file E81734) applies specifically to the insulated TO-220AB construction of BTA10-600BWRG, validating 2500 VRMS isolation between the metal tab and all three terminals (A1, A2, G) under standardized dielectric withstand testing.