Infineon Technologies T1330N22TOFVTXPSA1

Overview

T1330N22TOFVTXPSA1 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 1330 A average on-state current at 85 °C case temperature, 2200 V repetitive peak off-state voltage (VDRM/VRRM), and 26500 A non-repetitive surge current (ITSM) with 125 °C maximum junction temperature - enabling use in 3-phase rectifiers, motor soft-starters, and static VAR compensators.

For engineers reviewing the T1330N22TOFVTXPSA1 datasheet, T1330N22TOFVTXPSA1 pinout, T1330N22TOFVTXPSA1 application, or T1330N22TOFVTXPSA1 equivalent, key selection criteria include gate trigger current (≤250 mA), critical dv/dt rating (1000 V/µs), on-state voltage drop (1.13 V at 1 kA), thermal resistance (0.0170 °C/W junction-to-case, two-sided cooling), and commutated turn-off time (300 µs).

Technical Context

This thyristor operates as a line-synchronized, gate-controlled unidirectional switch in phase-angle controlled AC systems. Its design supports forced commutation via external circuitry, with validated critical parameters including 200 A/µs diT/dt capability, 1000 V/µs dv/dt immunity, and 300 µs circuit commutated turn-off time under rated conditions (vRM = 100 V, dvD/dt = 20 V/µs).

The device uses a silicon pellet with pressure-contact construction and dual-side heat sinking. Its on-state characteristic follows a defined polynomial (A=0.9012, B=1.890E−4, C=−2.256E−2, D=6.587E−3), enabling precise conduction loss modeling across 500–6500 A load range at 125 °C junction temperature.

Key Specifications

Pinout & Package

Package: Press-pack, double-sided cooled, stud-mount thyristor with isolated anode/cathode terminals and flat gate contact. Mechanical interface per Semikron Annex (Page 3), clamping force 20–45 kN, weight ~600 g, creepage distance 20 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT1330N22KOF and ST1330N22TOF, the T1330N22TOFVTXPSA1 uniquely supports two-sided cooling with 0.0170 °C/W RthJC and maintains 250 mA IGT headroom - making it optimal for high-reliability, high-current industrial converters where thermal symmetry and gate drive margin are critical.

Availability

T1330N22TOFVTXPSA1 is available at Aetrix Electronics and suitable for industrial motor soft-starters, medium-voltage rectifier systems, and static VAR compensators requiring stable component supply, long lifecycle support, and traceable sourcing.

Supply support for T1330N22TOFVTXPSA1 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 traction applications.

This thyristor belongs to Semikron's "Netz-Thyristor" series, engineered specifically for robust phase-angle control in line-commutated AC/DC conversion systems operating up to 2200 V and 1330 A.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature is 85 °C for 1330 A average on-state current (ITAVM) under two-sided cooling with sinusoidal conduction at 180°. At 55 °C case temperature, the rating increases to 1900 A. Exceeding these limits risks thermal runaway due to positive temperature coefficient of on-state voltage.

Does this thyristor require a heatsink on both sides?

Yes - the 0.0170 °C/W RthJC rating applies exclusively to two-sided cooling. Using only anode- or cathode-side heatsinking raises thermal resistance to ≥0.0330 °C/W, reducing ITAVM to ≤1000 A at 85 °C and risking premature failure. Mechanical mounting must ensure uniform 20–45 kN clamping force across both interfaces.

Can the auxiliary cathode (terminal 5) be left unconnected?

No - the auxiliary cathode provides a low-impedance reference for the gate-cathode loop during high dv/dt transients. Leaving it unconnected degrades noise immunity and may cause erratic triggering or false turn-on. It must be connected to the main cathode via low-inductance path in PCB layout or busbar design.

What gate drive parameters are required for reliable turn-on?

A minimum 1 A peak gate current with diG/dt ≥1 A/µs and pulse width ≥20 µs is required to ensure latching at 2000 mA IL. Gate voltage must exceed 2.2 V (VGT max) while limiting peak power to ≤60 W (0.5 ms pulse). Snubbing is mandatory to suppress ringing induced by 1000 V/µs dv/dt exposure.