STMicroelectronics T2050H-6G

Overview

T2050H-6G from STMicroelectronics is a 20 A, 600 V snubberless triac in D²PAK surface-mount package, designed for high-power AC switching in universal motor control circuits. It delivers 50 mA gate trigger current (IGT), supports 150 °C junction operation, and features insulated voltage rating of 2500 VRMS via internal ceramic pad - enabling compact, automated SMD designs for vacuum cleaner and washing machine drum motors.

For engineers reviewing the T2050H-6G datasheet, T2050H-6G pinout, T2050H-6G application, or T2050H-6G equivalent, key selection criteria include its 1500 V/µs dV/dt immunity at 150 °C, 36 A/ms commutation capability without snubber, low 1.0 °C/W junction-to-case thermal resistance, and RoHS-compliant, UL-certified (E81734) construction.

Technical Context

This H-series triac operates across all three quadrants with enhanced turn-off commutation robustness up to 150 °C junction temperature. Its internal ceramic insulation enables 2500 VRMS isolation between MT1/MT2 and heatsink, eliminating need for insulating washers in TO-220AB Ins variants - a feature retained in the D²PAK variant via structural design.

The device achieves high dV/dt immunity (1500 V/µs min at Tj = 150 °C) and critical commutation di/dt (36 A/ms min) without external snubbers. Its on-state characteristics are defined by VT ≤ 1.5 V at 28 A (25 °C) and dynamic resistance RD ≤ 19 mΩ at 150 °C, supporting efficient power delivery in high-density motor drives.

Key Specifications

Pinout & Package

D²PAK (TO-263) surface-mount package with isolated tab: thermally conductive but electrically insulated metal tab (2500 VRMS rated), 3-pin configuration optimized for automated assembly and high-current PCB routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with T2050H-6T and BTB20-600CW, the T2050H-6G uniquely combines SMD manufacturability, built-in 2500 VRMS isolation, UL certification, and highest dV/dt immunity - making it optimal for high-reliability, volume-produced consumer motor controllers.

Availability

T2050H-6G is available at Aetrix Electronics and suitable for vacuum cleaner motor control, washing machine drum drive, and power tool speed regulation requiring stable component supply and long-term production continuity.

Supply support for T2050H-6G 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, specializing in power management, analog, MCU, and automotive-grade components.

The H-series triac product line targets high-reliability AC power switching in white goods and power tools, emphasizing snubberless operation, high-temperature robustness, and safety-certified packaging.

FAQ

What is the maximum allowable case temperature for continuous 20 A RMS operation?

At 20 A RMS, the D²PAK package requires a maximum case temperature of 128 °C to maintain safe junction temperature within the -40 to +150 °C operating range. This is specified in Table 1 of DS5314 Rev 6 and confirmed by Figure 2, which shows IT(RMS) derating curves for D²PAK/TO-220AB packages.

Does T2050H-6G require a heatsink in typical vacuum cleaner applications?

Yes - although its 1.0 °C/W Rth(j-c) enables efficient heat transfer, sustained 20 A RMS operation generates >10 W of conduction loss (VT × IT). Without a heatsink, junction temperature would exceed 150 °C within seconds. A minimum 10 cm² copper pour or small extruded aluminum heatsink is required per Figure 13 and thermal simulation guidelines in DS5314.

Can T2050H-6G replace T2035H-6G in existing designs?

Yes, with functional trade-offs: T2050H-6G has higher IGT (50 mA vs. 35 mA), higher IH (75 mA vs. 35 mA), and higher dV/dt (1500 V/µs vs. 1000 V/µs), making it more robust but requiring slightly stronger gate drive. No layout or thermal changes are needed as both share identical D²PAK footprint and thermal characteristics.

Is the D²PAK tab electrically connected to any internal terminal?

No - the D²PAK tab is electrically isolated from MT1, MT2, and G terminals by an internal ceramic pad, rated for 2500 VRMS. This isolation is intrinsic to the package construction and verified per UL file E81734; no external insulator is required when mounting to a grounded heatsink.