STMicroelectronics BTA06-600SRG

Overview

BTA06-600SRG from STMicroelectronics is a 6 A, 600 V RMS snubberless logic-level triac in insulated TO-220AB package, rated for 2500 V_RMS voltage isolation between tab and terminals. It supports phase control and ON/OFF switching in AC loads, with 5 mA gate trigger current (Q1), 1.3 V gate trigger voltage, and 50 A non-repetitive surge rating-used in lighting dimmers and motor speed controllers.

For engineers reviewing the BTA06-600SRG datasheet, BTA06-600SRG pinout, BTA06-600SRG application, or BTA06-600SRG equivalent, key selection criteria include gate sensitivity (5 mA), snubberless commutation performance (dV/dt ≥ 1000 V/µs), insulated tab compliance (UL E81734), and thermal resistance (R_th(j-c) = 2.7 °C/W).

Technical Context

This triac operates in three quadrants (I, II, III) with logic-level gate drive compatibility, enabling direct interfacing with microcontrollers and optocouplers without external amplification. Its snubberless design eliminates need for RC snubbers on inductive loads, supported by high dV/dt immunity (1000 V/µs at T_j = 125°C) and robust commutation margin (dI/dt ≥ 50 A/µs).

The insulated TO-220AB package integrates a ceramic pad to achieve 2500 V_RMS isolation between the metal tab and internal die, satisfying UL E81734 requirements. Junction-to-case thermal resistance is 2.7 °C/W, enabling 6 A RMS conduction at T_c = 105°C with appropriate heatsinking.

Key Specifications

Pinout & Package

Package: TO-220AB insulated (ceramic-isolated tab), UL-recognized (File E81734), RoHS-compliant ECOPACK® with lead-free second-level interconnect.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTB06-600SW and Z0106MN, BTA06-600SRG uniquely combines logic-level gate drive, snubberless inductive load capability, and certified 2500 V_RMS tab isolation-making it optimal for safety-critical, space-constrained, or thermally demanding AC control designs.

Availability

BTA06-600SRG is available at Aetrix Electronics and suitable for lighting dimmers, motor starters, heating regulators, and static relays requiring stable component supply, long-term lifecycle support, and UL-certified isolation.

Supply support for BTA06-600SRG 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.

The BTA/BTB06 series belongs to ST's high-reliability power discrete portfolio, engineered specifically for robust AC mains switching in industrial controls, home appliances, and building automation systems.

FAQ

What is the maximum junction temperature for continuous operation?

The BTA06-600SRG has an operating junction temperature range of –40°C to +125°C. Continuous conduction at 6 A RMS requires case temperature ≤105°C, enforced by thermal design using its 2.7 °C/W junction-to-case resistance and adequate heatsinking per Figure 2 in the datasheet.

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

Yes, but only if the gate drive remains in quadrants I, II, or III. BTA06-600SRG is a 3-quadrant device-quadrant IV triggering is not supported. Designs relying on QIV triggering (e.g., certain legacy optocoupler drivers) require verification or substitution with a 4Q part like BTB06-600CW.

Is the insulated tab rated for safety isolation in medical equipment?

No. While UL E81734 certifies 2500 V_RMS isolation, BTA06-600SRG is not approved to IEC 60601-1 for medical applications. It meets industrial safety standards (e.g., UL 508, EN 60730) but lacks reinforced insulation and creepage/clearance validation required for patient-connected devices.

Does "RG" in the part number indicate tape-and-reel packaging?

No. "RG" denotes tube packaging (50 units per tube), per Table 8 in the datasheet. Tape-and-reel variants use "RE" suffix (e.g., BTA06-600SRRE). Tube format supports manual assembly and low-volume prototyping, while RE enables automated SMT placement despite TO-220AB being through-hole.