Infineon Technologies TT142N06KOFKHPSA1

Overview

TT142N06KOFKHPSA1 from Semikron is a phase-control thyristor module with dual anti-parallel SCR configuration, rated for 142 A average on-state current (ITAVM), 1200 V repetitive peak off-state voltage (VDRM/VRRM), and 4800 A non-repetitive surge current (ITSM) at 10 ms. It delivers 1.56 V maximum on-state voltage at 500 A and operates up to 125 °C junction temperature, designed for industrial AC power control in motor drives and heating systems.

For engineers reviewing the TT142N06KOFKHPSA1 datasheet, TT142N06KOFKHPSA1 pinout, TT142N06KOFKHPSA1 application, or TT142N06KOFKHPSA1 equivalent, key selection criteria include RMS current capability (230 A), critical dv/dt rating (1000 V/µs), gate trigger parameters (IGT ≤ 150 mA, VGT ≤ 2 V), thermal resistance (RthJC = 0.110 °C/W per module), and isolation voltage (2.5 kV RMS).

Technical Context

This thyristor module implements a press-pack, double-sided cooled design with silicon pellets mounted on aluminum nitride (AlN) ceramic isolation. Its dual SCR topology enables bidirectional phase-controlled conduction without external reverse-blocking components, supporting both B2 two-pulse and B6 six-pulse bridge configurations.

The device features a 200 µs typical commutated turn-off time (tq) under specified test conditions (vRM = 100 V, dvD/dt = 20 V/µs), and maintains stable triggering with gate non-trigger current limits of 10 mA at full blocking voltage and 5 mA at 0.5×VDRM - ensuring noise immunity in high-dv/dt industrial environments.

Key Specifications

Pinout & Package

TT142N06KOFKHPSA1 uses a press-fit, double-sided cooled module package with isolated copper baseplate and AlN ceramic insulation. Mechanical mounting uses M1 screws (6 Nm ±15%) and terminal connections use M2 screws (6 Nm ±10%). Weight: 310 g. Creepage distance: 15 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SKKT 142/12, TT142N06KOFKHPSA1 offers superior surge robustness (4800 A vs. 4500 A) and lower thermal resistance, while TT162N12KOFKHPSA1 trades surge capacity for extended blocking range - making the original optimal for 400–480 VAC systems demanding high reliability under overload.

Availability

TT142N06KOFKHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, resistive heating control, DC power supply rectification, and welding equipment requiring stable component supply and long-lifecycle support.

Supply support for TT142N06KOFKHPSA1 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 manufacturer specializing in power semiconductor modules, offering integrated solutions for industrial, renewable energy, and traction applications since 1951.

This part belongs to Semikron's TT-series phase-control thyristor modules, engineered for high-efficiency, high-reliability AC power regulation in harsh industrial environments with stringent thermal and isolation requirements.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is not fixed but depends on operating current and conduction angle. At ITAVM = 142 A and Θ = 180°, TC must not exceed 85 °C for natural cooling (KM17 heatsink) or 100 °C for forced cooling (Papst 4650N), per thermal curves on page 7 of the datasheet. Exceeding these values risks exceeding Tvj max = 125 °C.

Can TT142N06KOFKHPSA1 be used in a single-phase B2 bridge configuration?

Yes - the dual anti-parallel SCR structure supports B2 (two-pulse) bridge operation. Each SCR handles one polarity; the module replaces two discrete thyristors. Page 8 of the datasheet provides ID vs. RthCA curves specifically for B2 topology, confirming 300 A maximum output current with RthCA = 0.1 °C/W under forced cooling.

What gate drive requirements must be met to ensure reliable turn-on?

Gate trigger current must reach ≥0.6 A within 20 µs (iGM), with diG/dt ≥ 0.6 A/µs, and minimum pulse width tg = 20 µs. VGT ≤ 2 V at 6 V anode-cathode voltage ensures compatibility with standard optocoupler-based drivers like MOC3023. Gate non-trigger voltage (VGD ≤ 0.25 V) mandates low-noise PCB layout to prevent false triggering.

Is the baseplate electrically isolated, and what is its voltage rating?

Yes - the baseplate is isolated via aluminum nitride (AlN) ceramic with 2.5 kV RMS (1 min) and 3.0 kV RMS (1 sec) insulation test ratings. This allows direct mounting to grounded heatsinks while maintaining functional isolation between power terminals and chassis ground, complying with IEC 61800-5-1 safety standards.