Infineon Technologies T560N14TOFXPSA1

Overview

T560N14TOFXPSA1 from Infineon Technologies is a high-power, phase-control thyristor designed for industrial AC power regulation in line-commutated converters and motor drives. It features a repetitive peak off-state voltage (VDRM/VRRM) of 1400 V, maximum RMS on-state current (ITRMS) of 1260 A, and average on-state current (ITAVM) up to 800 A at TC = 55 °C with 180° conduction. Its critical dv/dt rating of 1000 V/µs and di/dt capability of 120 A/µs support robust gate-controlled turn-on in high-noise, high-dI/dt environments such as medium-voltage rectifiers.

For engineers reviewing the T560N14TOFXPSA1 datasheet, T560N14TOFXPSA1 pinout, T560N14TOFXPSA1 application, or T560N14TOFXPSA1 equivalent, key selection criteria include verified surge current (ITSM = 6900 A at Tvj max), junction-to-case thermal resistance (RthJC = 0.042 °C/W two-sided), gate trigger current (IGT ≤ 200 mA), and latching current (IL ≤ 1200 mA) - all critical for reliable firing and commutation in high-power SCR-based systems.

Technical Context

This thyristor operates as a bidirectional, gate-controlled semiconductor switch in half- or full-wave phase-controlled AC circuits. Its design centers on high-current, high-voltage line-commutated operation, requiring precise gate triggering (VGT ≤ 2 V, IGT ≤ 200 mA), fast turn-on (tgd ≤ 4 µs), and controlled turn-off via natural current zero-crossing assisted by tq = 250 µs circuit commutated turn-off time.

Thermal performance is defined by dual-sided cooling configuration (RthCH = 0.0075 °C/W), enabling sustained ITAVM = 800 A at TC = 55 °C. The device's on-state characteristic follows vT = 0.9385 + 3.384×10⁻⁴·iT − 5.551×10⁻²·ln(iT) + 2.001×10⁻²·iT·ln(iT) (Tvj = 125 °C), supporting accurate loss modeling across 100–2800 A conduction ranges.

Key Specifications

Pinout & Package

Package: TO-200AB (also known as "TO-200" or ""Stud Mount" metal package with anode/cathode/gate terminals and auxiliary cathode). Two-sided clamping (F = 5–10 kN) ensures low thermal resistance and mechanical stability in high-current applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT560N14KOF and T560N16TOFXPSA1, the T560N14TOFXPSA1 offers optimal balance of 1400 V blocking, 1260 A RMS current, and round-gate mechanical compatibility - making it preferred for new designs targeting standard 690 VAC industrial infrastructure with modern gate driver modules.

Availability

T560N14TOFXPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, medium-voltage rectifiers, DC arc furnace controls, and static VAR compensators requiring stable component supply across extended production lifecycles.

Supply support for T560N14TOFXPSA1 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 part belongs to Infineon's "Netz-Thyristor" series - engineered specifically for high-reliability, high-current phase control in line-commutated industrial power conversion, emphasizing thermal robustness, gate noise immunity, and long-term parameter stability under cyclic stress.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is 125 °C, derived from the absolute maximum junction temperature (Tvj max = 125 °C) and the specified thermal resistance RthJC = 0.042 °C/W under two-sided cooling. At ITAVM = 800 A and Θ = 180°, TC must be maintained ≤125 °C using appropriate heatsink design and clamping force (5–10 kN).

Does T560N14TOFXPSA1 require a snubber circuit?

Yes - due to its (dvD/dt)cr rating of 1000 V/µs, a dv/dt snubber (RC network across anode–cathode) is required in most applications to prevent false triggering during rapid voltage transients. Snubber values must be selected to limit dv/dt below 700 V/µs under worst-case line conditions, per IEC 60747-6 recommendations.

Can this thyristor be used in forced-commutated inverters?

No - T560N14TOFXPSA1 is a line-commutated (natural commutation) thyristor with tq = 250 µs, not designed for active turn-off. It lacks gate turn-off (GTO) capability or integrated commutation circuitry. Forced-commutated inverters require GTOs, IGCTs, or IGBTs instead.

What is the significance of the auxiliary cathode (terminal 5)?

The auxiliary cathode provides a dedicated, low-inductance return path for gate drive current, isolating gate loop impedance from the main cathode current path. This minimizes coupling of high di/dt noise into the gate circuit, improving triggering reliability and reducing risk of false turn-on in high-power, high-frequency firing applications.