STMicroelectronics BTB10-600CRG

Overview

BTB10-600CRG from STMicroelectronics is a 10 A, 600 V RMS snubberless triac in TO-220AB non-insulated package, rated for 3-quadrant operation with 35 mA max gate trigger current (IGT), 500 V/µs minimum dV/dt at 125 °C, and 5.5 A/ms critical commutation current (dI/dt)c - designed for reliable phase-controlled switching of inductive AC loads such as appliance motor speed controllers and lighting dimmers.

For engineers reviewing the BTB10-600CRG datasheet, BTB10-600CRG pinout, BTB10-600CRG application, or BTB10-600CRG equivalent, key selection criteria include its snubberless 3Q capability, low thermal resistance (Rth(j-c) = 1.5 °C/W), insulated tab option compatibility, and UL1557-certified construction - all critical for mains-powered industrial and consumer control designs requiring high commutation robustness without external snubbers.

Technical Context

This triac operates in three quadrants (I, II, III) only, eliminating quadrant IV conduction to improve noise immunity and commutation stability on inductive loads. Its internal ceramic pad-free design (non-insulated TO-220AB) delivers lower thermal resistance than insulated variants while maintaining full 10 A RMS current handling at Tc = 105 °C.

It features logic-level gate sensitivity (IGT ≤ 35 mA), high dV/dt immunity (≥500 V/µs at 125 °C), and guaranteed commutation performance (dI/dt)c ≥ 5.5 A/ms without snubber networks - enabling direct drive from microcontrollers and reducing BOM count in compact AC control circuits.

Key Specifications

Pinout & Package

BTB10-600CRG uses the TO-220AB non-insulated package with metal tab electrically connected to MT2 (A2). The tab serves as both heatsink interface and current-carrying terminal.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar snubberless triac applications.

Compared with BTA10-600CW, BTB10-600CRG offers lower thermal resistance and lower cost in non-isolated applications; compared with T1035-6G, it provides through-hole mechanical robustness and simplified thermal management via bolted heatsink attachment.

Availability

BTB10-600CRG is available at Aetrix Electronics and suitable for induction motor control, lighting dimming, heating regulation, and static relay replacement requiring stable component supply across industrial OEM and consumer electronics production cycles.

Supply support for BTB10-600CRG 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, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

BTB10-600CRG belongs to ST's BTA/BTB/T10xx triac family - engineered specifically for robust, snubberless AC power control in cost-sensitive, high-volume mains-powered applications.

FAQ

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

BTB10-600CRG supports 10 A RMS continuous current at a maximum case temperature (Tc) of 105 °C, as specified in Table 1 of DS3165 Rev 9. Operation above this temperature requires derating per Figure 3, which shows IT(RMS) decreases linearly to ~7 A at Tc = 125 °C.

Is a heatsink required for 10 A operation?

Yes - a heatsink is mandatory for 10 A continuous operation. With Rth(j-c) = 1.5 °C/W and typical on-state power dissipation of ~1.55 W at 10 A, junction temperature rise exceeds safe limits without thermal management. Minimum heatsink thermal resistance must be ≤ 2.5 °C/W (including interface resistance) to maintain Tj ≤ 125 °C at Tc = 105 °C.

Can BTB10-600CRG replace a standard 4Q triac in existing designs?

No - BTB10-600CRG is a 3-quadrant snubberless device and does not conduct in Quadrant IV. Replacing a 4Q triac requires verifying that the application never relies on QIV triggering (e.g., certain zero-crossing or random-phase circuits with asymmetric gate drive). Use BTA10-600BRG for true 4Q compatibility.

What is the gate trigger voltage range at 125 °C?

VGT is guaranteed ≤ 1.3 V across temperature, including at 125 °C (Table 3). Measured typical values decrease slightly with temperature, but the maximum remains fixed at 1.3 V to ensure consistent turn-on margin under worst-case thermal conditions.