Infineon Technologies TT140N22KOFHPSA1

Overview

TT140N22KOFHPSA1 from Infineon Technologies is a phase-control thyristor module rated for 2200 V repetitive peak off-state voltage (VDRM/VRRM), 140 A average on-state current (ITAVM) at TC = 85°C, and 250 A RMS on-state current (ITRMSM), designed for industrial AC power control in medium-power rectification and motor speed regulation circuits.

For engineers reviewing the TT140N22KOFHPSA1 datasheet, TT140N22KOFHPSA1 pinout, TT140N22KOFHPSA1 application, or TT140N22KOFHPSA1 equivalent, this module delivers verified thermal resistance (RthJC = 0.095 °C/W per module), critical dv/dt immunity (1000 V/µs), and gate trigger reliability (IGT ≤ 150 mA) under high-temperature, high-noise industrial line conditions.

Technical Context

This dual-thyristor module implements a B6 six-pulse bridge configuration with pressure-contact silicon pellets and aluminum nitride (AlN) internal isolation. It supports natural or forced cooling with validated transient thermal impedance models (ZthJC) for sinusoidal and rectangular conduction angles from 30° to 180°.

Designed for line-commutated operation, it features a circuit commutated turn-off time (tq) of 300 µs at Tvj max, 100 V reverse voltage, and 20 V/µs dvD/dt - enabling reliable commutation in 50/60 Hz AC drives and DC power supplies without external snubbers in many configurations.

Key Specifications

Pinout & Package

TT140N22KOFHPSA1 is housed in a press-pack module package with isolated copper baseplate, AlN ceramic insulation, and M1 mechanical mounting (6 Nm ±15%). Electrical terminals are screw-type per DIN 46244 A (2.8 × 0.8 mm), with three main terminals per arm: anode (A), cathode (K), and gate (G).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT140N22KOFHPSA1, TT162N22KOFHPSA1 offers headroom for future power scaling without layout change, while TD140N22KOFHPSA1 trades integration for flexibility in fault-tolerant or programmable firing topologies.

Availability

TT140N22KOFHPSA1 is available at Aetrix Electronics and suitable for industrial AC motor drives, medium-power DC power supplies, static VAR compensators, and welding power sources requiring stable component supply across multi-year production cycles.

Supply support for TT140N22KOFHPSA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power electronics, automotive ICs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

This thyristor module belongs to Infineon's "Netz-Thyristor-Modul" series, engineered specifically for high-reliability, line-commutated AC power conversion in harsh industrial environments where long-term thermal stability and voltage ruggedness are critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The datasheet specifies a maximum case temperature (TC) of 85°C for rated ITAVM = 140 A. At higher case temperatures, current must be linearly derated: at TC = 100°C, ITAVM drops to ~115 A; at TC = 125°C, it falls to ~85 A. Derating curves are provided in Figure 7 of the official datasheet.

Does TT140N22KOFHPSA1 require forced cooling?

No - it supports natural cooling with appropriate heatsinking (e.g., KM17 type), delivering full 140 A ITAVM at TC = 85°C. Forced cooling (e.g., Papst 4650N fan) extends usable current range and reduces thermal resistance to ambient (RthCA), enabling higher ambient temperature operation or increased overload capability.

Can this module be used in asymmetrical half-wave configurations?

Yes - its dual-thyristor structure supports independent gate control of each arm, allowing implementation of asymmetrical firing patterns. However, thermal imbalance must be managed: sustained unequal conduction angles cause uneven junction heating, requiring derating per arm based on individual ITAVM limits and measured RthJC values.

What gate drive voltage and current are required for reliable triggering?

A minimum gate trigger current of 150 mA at ≤2 V (VGT) is required at 25°C. For robust operation across temperature and aging, a 250 mA, 15 V pulse with diG/dt ≥ 0.6 A/µs and duration ≥20 µs is recommended. Gate non-trigger thresholds (IGD ≤ 10 mA, VGD ≤ 0.25 V) ensure noise immunity in electrically noisy industrial cabinets.