STMicroelectronics T2050H-6G-TR

Overview

T2050H-6G-TR 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. It supports 150 °C junction operation, delivers 50 mA gate trigger current (IGT), achieves 1500 V/µs dV/dt immunity at 150 °C, and features internal ceramic insulation rated at 2500 VRMS - enabling compact, thermally efficient designs in vacuum cleaner and washing machine drum motor drives.

For engineers reviewing the T2050H-6G-TR datasheet, T2050H-6G-TR pinout, T2050H-6G-TR application, or T2050H-6G-TR equivalent, key selection criteria include its 20 A RMS current rating, 600 V blocking voltage, 50 mA IGT sensitivity, 1500 V/µs dV/dt robustness at 150 °C, and D²PAK thermal resistance of 1.0 °C/W (junction-to-case), critical for high-density motor control PCB layouts.

Technical Context

This triac operates across all three quadrants with high commutation capability, eliminating need for external snubber networks in inductive loads. Its 19 mΩ dynamic on-state resistance (RD) and 0.80 V threshold voltage (VTO) at 150 °C ensure low conduction losses under sustained thermal stress.

The device uses clip-bonding construction to achieve low thermal resistance and integrates a 2500 VRMS isolation barrier via internal ceramic pad. Its 36 A/ms critical rate of decrease of on-state current (dl/dt)c at 150 °C enables reliable turn-off in high-inductance universal motor circuits without forced commutation.

Key Specifications

Pinout & Package

D²PAK (TO-263) surface-mount package with isolated tab; thermally enhanced clip-bonded die construction; 2500 VRMS internal ceramic insulation between die and tab; footprint per Figure 15 (DS5314 Rev 6, p.8).

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 T2035H-6G-TR, T2050H-6G-TR uniquely combines SMT manufacturability, internal 2500 VRMS insulation, and the highest dV/dt/dl/dt margins in the H-series - making it optimal for high-reliability, high-density universal motor control where thermal and EMI robustness are critical.

Availability

T2050H-6G-TR is available at Aetrix Electronics and suitable for vacuum cleaner motor control, washing machine drum drive, and industrial fan speed regulation requiring stable component supply across extended production lifecycles.

Supply support for T2050H-6G-TR 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.

The H-series snubberless triac product line targets high-reliability AC power control in universal motor and resistive load applications, emphasizing thermal resilience, EMI robustness, and SMT manufacturability.

FAQ

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

The D²PAK package supports 20 A RMS continuous current at a case temperature (Tc) of 128 °C, as specified in Table 1 of DS5314 Rev 6. Exceeding this temperature requires derating per Figure 2; thermal design must ensure Tc ≤128 °C under worst-case ambient and airflow conditions.

Does T2050H-6G-TR require an external heatsink on standard FR-4 PCB?

Yes - while the D²PAK's 1.0 °C/W Rth(j-c) enables efficient heat transfer, the 20 A RMS rating assumes adequate copper pour (≥10 cm², 2 oz Cu) or external heatsink. Without thermal enhancement, Rth(j-a) exceeds 45 °C/W, limiting practical current to ~3–4 A in still air per Figure 3.

Can T2050H-6G-TR replace T2050H-6I in an insulated TO-220AB design?

No - T2050H-6I provides 2500 VRMS isolation between tab and die but uses through-hole mounting; T2050H-6G-TR offers identical isolation but requires SMT layout changes, different footprint, and requalification of thermal and mechanical stress profiles in vibration-prone appliances.

What gate drive circuit meets the 50 mA IGT requirement reliably?

A 12 V DC source with ≤240 Ω series resistance (per IGT test condition: VD = 12 V, RL = 33 Ω) delivers ≥50 mA peak gate current. Optocouplers like MOC3052 or microcontroller GPIOs with 100 mA-rated drivers (e.g., STM32 GPIO with external transistor) satisfy this, provided pulse width exceeds 10 µs per datasheet recommendation.