Infineon Technologies TT340N22KOFXPSA1

Overview

TT340N22KOFXPSA1 from Infineon Technologies is a press-pack phase-control thyristor module rated for 2200 V repetitive peak off-state voltage (VDRM/VRRM), 338 A average on-state current (ITAVM) at TC = 85°C, and 9500 A non-repetitive surge current (ITSM). It features electrically insulated baseplate, pressure-contact die attachment, and Advanced Medium Power Technology (AMPT), deployed in industrial soft starters and static power controllers.

For engineers reviewing the TT340N22KOFXPSA1 datasheet, TT340N22KOFXPSA1 pinout, TT340N22KOFXPSA1 application, or TT340N22KOFXPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.1 K/W), threshold voltage (0.85 V), slope resistance (0.64 mΩ), critical dv/dt rating (1000 V/µs), and gate trigger current (≤200 mA).

Technical Context

This dual-thyristor press-pack module implements line-commutated phase-angle control in high-power AC systems. Its 2200 V blocking capability supports medium-voltage drive rectifiers and crowbar protection circuits operating up to 135 °C junction temperature.

The device uses silicon pellets with pressure-contact interconnection and aluminum nitride (AlN) baseplate insulation (Class I per IEC61140). Thermal design relies on validated transient ZthJC curves and DC thermal resistance of 0.1 K/W per module, enabling precise loss modeling for 50/60 Hz conduction angles from 30° to 180°.

Key Specifications

Pinout & Package

TT340N22KOFXPSA1 is housed in an industrial-standard press-pack module with electrically insulated AlN baseplate (50 mm × 70 mm footprint), rated for 3.6 kV insulation test voltage (1 sec, 50 Hz). Mechanical mounting torque: 5 Nm (±15%) for M1 screws; electrical terminal torque: 12 Nm (±10%) for M2 terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TD340N22KOF and TT500N22KOF, TT340N22KOFXPSA1 uniquely balances integrated electrical isolation, industry-standard footprint, and 338 A rating-making it optimal for space-constrained, safety-certified soft starter and rectifier designs where baseplate grounding simplifies system integration.

Availability

TT340N22KOFXPSA1 is available at Aetrix Electronics and suitable for soft starters, drive rectifiers, and static power controllers requiring stable component supply, long-life thermal reliability, and certified isolation compliance.

Supply support for TT340N22KOFXPSA1 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 semiconductors, microcontrollers, and sensor solutions, with global manufacturing and R&D infrastructure.

TT340N22KOFXPSA1 belongs to Infineon's high-reliability press-pack thyristor product line, engineered for industrial energy conversion systems demanding robustness under cyclic thermal stress and high-voltage transients.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is +135 °C, aligned with the 135 °C maximum junction temperature (Tvj max) and 0.1 K/W thermal resistance. Derating curves in the datasheet show ITAVM drops to 338 A only at TC = 85 °C; operation at higher TC requires proportional current reduction per the published TC vs. ITAVM graph.

Does TT340N22KOFXPSA1 support asymmetrical firing in single-phase configurations?

Yes-its dual independent gate terminals (G1, G2) and isolated arms (A1/K1, A2/K2) enable asymmetrical firing, such as half-wave control or unbalanced phase triggering. Gate drive circuits must respect the 2 V/200 mA trigger limits and 3 µs maximum delay time (tgd) to ensure consistent turn-on across temperature.

How is thermal performance affected by different current conduction angles?

Conduction angle directly impacts transient thermal impedance: ZthJC rises by up to 0.04048 K/W at Θ = 30° (rectangular) versus DC. The datasheet provides ΔZth correction factors for Θ = 30°–180°, requiring inclusion in thermal modeling to avoid junction overheating during partial-conduction operation like dimming or soft-start ramping.

What mechanical mounting standards apply to the baseplate terminals?

The baseplate uses M1 screws (5 Nm ±15%) for mechanical fixation and M2 terminals (12 Nm ±10%) for main current connections. Creepage distance is 17 mm; vibration resistance is rated at 50 m/s² (50 Hz). Mounting must maintain flatness ≤0.05 mm and use conductive thermal paste meeting Infineon's specification for AlN interfaces.