Infineon Technologies T2810N22TOFVTXPSA1

Overview

T2810N22TOFVTXPSA1 from Semikron is a high-power, phase-control thyristor designed for industrial AC power regulation in medium- to high-voltage line-commutated converters. It delivers 2810 A average on-state current at 85 °C case temperature, supports 2200 V repetitive peak off-state voltage (VDRM/VRRM), and withstands 58 kA non-repetitive surge current - enabling use in traction rectifiers, HVDC valve stacks, and large motor soft starters.

For engineers reviewing the T2810N22TOFVTXPSA1 datasheet, T2810N22TOFVTXPSA1 pinout, T2810N22TOFVTXPSA1 application, or T2810N22TOFVTXPSA1 equivalent, key selection criteria include its 125 °C maximum junction temperature, 200 A/µs critical di/dt rating, 1000 V/µs critical dv/dt capability, gate trigger current ≤300 mA, and two-sided clamping package with auxiliary cathode terminal.

Technical Context

This thyristor operates as a line-commutated, gate-controlled rectifying switch in phase-angle controlled AC systems. Its design centers on high-current conduction (ITAVM = 2810 A @ TC = 85 °C), robust transient overvoltage immunity (VDRM = 2200 V), and fast turn-off behavior (typ. tq = 300 µs) under circuit commutation conditions with 100 V reverse recovery voltage and 20 V/µs dv/dt.

The device uses a silicon pellet with pressure-contact construction and dual cooling interfaces (anode and cathode sides), enabling thermal resistance as low as 0.0078 °C/W (junction-to-case, two-sided). Its gate control characteristics are defined by IGT ≤ 300 mA, VGT ≤ 2.5 V, and latching current IL ≤ 1500 mA - ensuring reliable triggering under high-temperature, high-noise industrial environments.

Key Specifications

Pinout & Package

Encapsulated in a pressure-contact, stud-mounted package with four terminals: Anode (flat surface), Cathode (flat surface), Gate (flat tab), and Auxiliary Cathode (round terminal per AMP 60598). Requires mechanical clamping force of 42–95 kN for reliable thermal and electrical contact.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar phase-control thyristor applications.

Compared with TT2810N22KOF and T2810N22TOFVTXPSA2, the T2810N22TOFVTXPSA1 offers balanced gate drive robustness, industry-standard qualification, and optimal cost-performance ratio for industrial power electronics - making it the default choice unless higher thermal efficiency or automotive compliance is explicitly required.

Availability

T2810N22TOFVTXPSA1 is available at Aetrix Electronics and suitable for industrial motor soft starters, HVDC converter valves, and traction rectifier systems requiring stable component supply across multi-year production cycles.

Supply support for T2810N22TOFVTXPSA1 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

Semikron is a German power semiconductor manufacturer specializing in high-reliability, high-power discrete devices and modules for industrial, energy, and transportation applications.

This part belongs to Semikron's "Netz-Thyristor" phase-control thyristor product line, engineered for line-commutated AC power conversion in demanding grid-connected systems where ruggedness, thermal stability, and long-term reliability are paramount.

FAQ

What is the recommended clamping force for T2810N22TOFVTXPSA1 installation?

The datasheet specifies a mechanical clamping force range of 42–95 kN for reliable thermal and electrical contact. Use torque-controlled bolting with calibrated tools and follow Semikron's mounting procedure to ensure uniform pressure distribution across the silicon pellet. Under-torque risks thermal runaway; over-torque may fracture the ceramic housing or deform terminals.

Does T2810N22TOFVTXPSA1 require a snubber circuit for 50 Hz phase control?

No snubber is required for standard 50/60 Hz phase control due to its 1000 V/µs critical dv/dt rating and 300 µs turn-off time. However, a small RC snubber (e.g., 100 Ω / 0.1 µF) is recommended if operating with highly inductive loads or rapid firing angle changes to suppress voltage overshoot during commutation.

Can T2810N22TOFVTXPSA1 be used in forced-air cooled systems?

Yes - it supports forced-air cooling when mounted on appropriately sized heatsinks with ≥2 m/s airflow. Thermal modeling must account for the 0.0025 °C/W case-to-heatsink resistance (RthCH) and verify that case temperature remains ≤85 °C at 2810 A ITAVM. Liquid cooling is preferred above 3500 A RMS load.

What is the function of the auxiliary cathode terminal?

The auxiliary cathode provides a dedicated, low-inductance reference point for gate drive circuits and voltage sensing - physically separated from the main cathode current path. This prevents noise coupling and false triggering caused by high di/dt in the main cathode loop, especially critical in multi-thyristor series strings.