STMicroelectronics BTA10-600CWRG

Overview

BTA10-600CWRG 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 3-quadrant operation, 500 V/µs dV/dt immunity at 125 °C, 35 mA max gate trigger current (IGT), and 2500 VRMS isolation between tab and circuit-enabling direct mounting to heatsinks without insulation hardware in motor control and heating regulation.

For engineers reviewing the BTA10-600CWRG datasheet, BTA10-600CWRG pinout, BTA10-600CWRG application, or BTA10-600CWRG equivalent, key selection criteria include commutation performance on inductive loads, thermal resistance (Rth(j–c) = 2.4 °C/W), gate sensitivity (IGT ≤ 35 mA), and UL1557-certified insulation integrity.

Technical Context

This Snubberless™ triac operates in three quadrants (I, II, III) with no gate triggering required in quadrant IV, enabling reliable turn-on under high dv/dt transients. Its internal ceramic insulator ensures 2500 VRMS isolation between the metal tab and MT1/MT2 terminals, eliminating external insulation washers in industrial mounting.

The device sustains 100 A non-repetitive surge current (tp = 20 ms, 50 Hz) and exhibits critical commutation capability: (dV/dt)c ≥ 500 V/µs and (dI/dt)c ≥ 5.5 A/ms at Tj = 125 °C-critical for snubber-free operation with inductive loads like universal motors and solenoids.

Key Specifications

Pinout & Package

Insulated TO-220AB package with metal tab electrically isolated from MT1/MT2 terminals; tab serves as mechanical heatsink interface only. Pin assignment verified per DS3165 Rev 9 Figure 14 and Table 7.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTA10-600BWRG, this part offers lower gate drive burden; compared with T1035-6G, it provides through-hole reliability and simplified heatsink mounting-but at higher thermal resistance and larger board footprint.

Availability

BTA10-600CWRG is available at Aetrix Electronics and suitable for induction motor control, heating regulation, light dimming, and static relay replacement requiring stable component supply across industrial and appliance programs.

Supply support for BTA10-600CWRG 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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.

BTA10-600CWRG belongs to the BTA series of insulated Snubberless™ triacs-engineered specifically for reliable, snubber-free AC switching in inductive and resistive loads across appliance, HVAC, and industrial controls.

FAQ

What is the maximum junction temperature for continuous operation?

The BTA10-600CWRG has an operating junction temperature range of –40 °C to +125 °C. For continuous 10 A RMS operation, case temperature must be held ≤95 °C per Table 1, requiring heatsink design that limits thermal resistance from junction to ambient to ≤60 °C/W (with Rth(j–c) = 2.4 °C/W and typical Rth(c–a) ≈ 57.6 °C/W).

Can this triac replace a standard 4-quadrant triac in existing designs?

No-BTA10-600CWRG is a 3-quadrant Snubberless™ device and does not trigger in quadrant IV (negative gate pulse with MT2 negative relative to MT1). Designs relying on full 4Q triggering (e.g., some legacy light dimmers) require verification of gate pulse polarity and timing; substitution may cause failure to turn on under certain half-cycle conditions.

Is the insulated tab rated for functional or safety isolation?

The 2500 VRMS isolation rating is certified to UL1557 (file E81734) as reinforced insulation-meeting safety requirements for protection against electric shock in Class I equipment. It is not rated for functional isolation (e.g., signal level shifting); the tab must be connected to protective earth or a grounded heatsink in final application.

What is the minimum gate trigger voltage required?

VGT is guaranteed ≤1.3 V across all quadrants (Table 3), measured with IGT ≤35 mA. This ensures compatibility with 3.3 V or 5 V logic outputs and common optocouplers (e.g., MOC3021, MOC3041) without external pull-up resistors or level-shifting circuitry.