Infineon Technologies TZ240N36KOFHPSA1

Overview

TZ240N36KOFHPSA1 from Infineon Technologies is a phase-control thyristor module rated for 3600 V repetitive peak off-state voltage (VDRM/VRRM), 240 A average on-state current (ITAVM) at TC = 85°C, and 700 A RMS on-state current (ITRMSM). It features dual thyristor arms in a press-pack configuration with AlN ceramic isolation, designed for high-power AC line commutated rectification in industrial medium-voltage drives and DC traction converters.

For engineers reviewing the TZ240N36KOFHPSA1 datasheet, TZ240N36KOFHPSA1 pinout, TZ240N36KOFHPSA1 application, or TZ240N36KOFHPSA1 equivalent, key selection criteria include its 0.0745 °C/W junction-to-case thermal resistance, 100 A/µs critical di/dt rating, 500–1000 V/µs critical dv/dt capability, and compatibility with forced-air-cooled heatsinks such as KM17 with Papst 4650N fans.

Technical Context

This thyristor module implements a dual-arm, reverse-blocking, gate-controlled silicon device optimized for line-commutated B2 (two-pulse) and B6 (six-pulse) bridge topologies. Its 125 °C maximum junction temperature, 350 µs typical turn-off time (tq), and 186,000 A²s I²t rating support reliable operation under short-circuit and overload conditions in 50/60 Hz AC systems.

The module uses pressure-contact Si pellets with aluminum nitride (AlN) internal insulation and requires precise mechanical mounting torque (M1: 6 Nm ±15%, M2: 12 Nm ±10%). Its gate trigger parameters-IGT ≤ 250 mA, VGT ≤ 1.5 V, and tgd ≤ 4.5 µs-enable robust firing control using standard pulse transformers or optocoupled drivers.

Key Specifications

Pinout & Package

The TZ240N36KOFHPSA1 is housed in a press-pack module package with isolated copper baseplate and integrated AlN ceramic insulation. Mechanical terminals are designated per DIN 46244 A (2.8 × 0.8 mm control terminals); main power terminals accept M1 (mounting) and M2 (electrical connection) screws.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT240N36KOFHPSA1, TZ240N36KOFHPSA1 delivers 39% lower thermal resistance and press-pack reliability for mission-critical industrial rectifiers; versus TZ250N36KOFHPSA1, it trades 4% current headroom for tighter cost control in fixed-load applications.

Availability

TZ240N36KOFHPSA1 is available at Aetrix Electronics and suitable for industrial medium-voltage rectifiers, railway traction converters, and steel mill rolling mill drives requiring stable component supply, long-life thermal cycling performance, and certified isolation integrity.

Supply support for TZ240N36KOFHPSA1 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 "Thyristor Power Modules" product line, engineered specifically for high-reliability, high-voltage line-commutated power conversion in harsh industrial environments.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum case temperature is not fixed but depends on ITAVM and cooling method. At 240 A ITAVM and TC = 85°C, the module operates within its thermal limit. With forced cooling (KM17 + Papst 4650N), case temperature may reach 110°C at full load while maintaining Tvj ≤ 125°C, per ZthCA transient thermal data on page 4 of the datasheet.

Can TZ240N36KOFHPSA1 be used in parallel configurations?

No-this module is not characterized or qualified for parallel operation. Its press-pack construction lacks integrated current-sharing features like emitter ballasting or matched dynamic parameters. Parallel use would risk thermal runaway due to parameter spread; discrete paralleling requires external balancing reactors and individual gate timing calibration.

What gate drive voltage and current are required for reliable turn-on?

A minimum gate trigger voltage of 1.5 V and current of 250 mA at 25°C is required. The gate non-trigger voltage (VGD) is limited to 0.2 V at 0.5×VDRM, so gate circuits must maintain <0.2 V leakage during blocking. Recommended gate pulses are ≥10 µs wide with ≥1 A peak current to ensure latching at high dv/dt.

Is the 3.6 kV insulation test voltage applicable for long-term operation?

No-the 3.6 kV RMS insulation test voltage (1 sec duration) is a factory safety compliance test, not a continuous operating rating. Long-term working voltage across isolation is governed by creepage (15 mm) and comparative tracking index (CTI ≥ 600), supporting continuous operation at ≤1.2 kV RMS per IEC 61800-5-1 for Pollution Degree 3 environments.