STMicroelectronics BTA10-600CRG

Overview

BTA10-600CRG from STMicroelectronics is a 10 A, 600 V RMS insulated triac in TO-220AB package, designed for AC mains switching in phase-control and ON/OFF applications. It features Snubberless™ 3-quadrant operation, 50 mA gate trigger current (IGT), 1000 V/µs dV/dt immunity at 125 °C, and UL1557-certified 2500 VRMS isolation. Used in heating regulation and motor speed control with inductive loads.

For engineers reviewing the BTA10-600CRG datasheet, BTA10-600CRG pinout, BTA10-600CRG application, or BTA10-600CRG equivalent, key selection criteria include insulated tab rating, commutation robustness on inductive loads, gate sensitivity (25 mA IGT), thermal resistance (Rth(j-c) = 2.4 °C/W), and Snubberless™ 3Q vs standard 4Q operational mode.

Technical Context

This triac operates in three quadrants (I, II, III) with gate-triggered turn-on and natural commutation at current zero-crossing. Its internal ceramic insulation enables 2500 VRMS isolation between tab and MT1/MT2, meeting UL1557 (file E81734). The Snubberless™ design eliminates external snubbers for inductive loads by guaranteeing ≥1000 V/µs dV/dt and ≥9 A/ms (dI/dt)c at 125 °C.

It supports logic-level triggering (VGT ≤ 1.3 V) and maintains stable latching (IL ≤ 70 mA) and holding (IH ≤ 50 mA) currents across –40 to +125 °C junction temperature. Thermal performance is defined by Rth(j-c) = 2.4 °C/W (insulated TO-220AB) and IT(RMS) = 10 A at Tc = 95 °C.

Key Specifications

Pinout & Package

Package: TO-220AB Insulated - molded plastic housing with electrically isolated metal tab rated at 2500 VRMS. Tab serves as MT2 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 BTA10-600BW, the CRG variant offers lower gate drive demand and superior inductive-load commutation; versus T1035-6G, it trades SMT compatibility for certified reinforced isolation and through-hole mechanical robustness in high-vibration environments.

Availability

BTA10-600CRG is available at Aetrix Electronics and suitable for heating regulation, motor starting, light dimming, and appliance speed control requiring stable component supply, long-lifecycle support, and UL-certified isolation.

Supply support for BTA10-600CRG 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.

BTA10-600CRG belongs to ST's high-reliability AC power switching portfolio, engineered specifically for robust, isolated, snubberless triac control in mains-powered appliances and industrial equipment.

FAQ

What is the maximum allowable case temperature for continuous 10 A operation?

The BTA10-600CRG supports 10 A RMS continuous current at a maximum case temperature (Tc) of 95 °C, as specified in Table 1 of DS3165 Rev 9. Exceeding this temperature reduces safe operating current per the derating curve in Figure 3. Thermal design must ensure heatsink interface resistance and ambient conditions maintain Tc ≤ 95 °C under full load.

Does the insulated tab require electrical connection to circuit ground?

No-the insulated tab is electrically isolated (2500 VRMS) and serves solely as MT2 and thermal interface. It may be mounted directly to a grounded heatsink without creating a safety hazard or short circuit. This allows simplified mechanical mounting while maintaining reinforced insulation between mains-side terminals and chassis ground.

Can BTA10-600CRG replace a standard 4-quadrant triac in existing designs?

Yes, but only if the application uses Quadrants I, II, or III-and avoids Quadrant IV triggering. The CRG variant is optimized for 3Q operation; its gate sensitivity and commutation specs are guaranteed only in those quadrants. For legacy 4Q circuits requiring IV quadrant turn-on, BTA10-600BW is the appropriate drop-in alternative.

What is the minimum gate pulse width required for reliable triggering?

A minimum gate pulse width of 20 µs is required to ensure turn-on, based on the IGM (peak gate current) test condition in Table 1 (tp = 20 µs). Shorter pulses risk incomplete triggering, especially at elevated junction temperatures. Gate drivers should deliver ≥4 A peak current for ≥20 µs into the 25 mA IGT-rated device.