Infineon Technologies TD140N16SOFHPSA1

Overview

TD140N16SOFHPSA1 from Semikron is a phase-control thyristor module rated for 1600 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 rectifier and motor drive bridge circuits.

For engineers reviewing the TD140N16SOFHPSA1 datasheet, TD140N16SOFHPSA1 pinout, TD140N16SOFHPSA1 application, or TD140N16SOFHPSA1 equivalent, key selection criteria include repetitive voltage rating, thermal resistance (RthJC = 0.095 °C/W per module), surge current capability (ITSM = 4000 A), and gate trigger parameters (IGT ≤ 150 mA, VGT ≤ 2 V).

Technical Context

This dual-thyristor module implements a B2 two-pulse or B6 six-pulse bridge configuration with pressure-contact silicon pellets and aluminum nitride (AlN) internal isolation. It supports line-commutated turn-off (tq = 300 µs typ.) and operates up to 125 °C junction temperature.

Gate control requires precise timing: maximum gate trigger delay is 3 µs under standard test conditions (iGM = 0.6 A, diG/dt = 0.6 A/µs), and critical dv/dt immunity is 1000 V/µs at maximum junction temperature.

Key Specifications

Pinout & Package

TD140N16SOFHPSA1 is housed in a press-pack module package with isolated copper baseplate, AlN ceramic insulation, and M1/M2 screw terminals. Mechanical mounting uses M1 screws (6 Nm ±15%), electrical connections use M2 screws (6 Nm ±10%). Control terminals conform to DIN 46244 A (2.8 × 0.8 mm).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SKKT 140/16 E and TT140N16KOF, TD140N16SOFHPSA1 delivers superior thermal performance (0.095 °C/W), enhanced isolation (15 mm creepage, 3.0 kV test voltage), and optimized TIM interface-making it preferred for high-reliability industrial rectifiers requiring field maintenance and extended service life.

Availability

TD140N16SOFHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, medium-voltage rectifiers, and uninterruptible power supplies requiring stable component supply, long lifecycle support, and traceable sourcing for production programs.

Supply support for TD140N16SOFHPSA1 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 power semiconductor manufacturer specializing in high-reliability modules for industrial, energy, and traction applications since 1951.

This part belongs to Semikron's SKiiP® and Phase-Control Thyristor Module product line, engineered for robust AC power conversion in harsh environments with emphasis on thermal stability, isolation integrity, and field-serviceable mechanical design.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature is not fixed but depends on current load and thermal interface. At ITAVM = 140 A and TC = 85°C, the module remains within safe limits. For higher ambient or constrained cooling, derating curves on page 7 of the datasheet define TC limits versus ITAVM for sinusoidal and rectangular conduction.

Does TD140N16SOFHPSA1 require a thermal interface material (TIM)?

Yes-TIM is mandatory for rated thermal performance. The datasheet specifies RthCH = 0.03 °C/W per module *with TIM*. Without TIM, thermal resistance increases significantly, risking junction overheating even at partial load. Semikron recommends silicone-based greases meeting ISO 2578 specifications.

Can this module be used in reverse-conducting configurations?

No-it is a standard forward-conducting, reverse-blocking thyristor module. Reverse conduction requires external antiparallel diodes or a dedicated reverse-conducting thyristor (RCT). The device blocks up to 1600 V in reverse direction and conducts only when gated in forward direction.

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

A minimum gate trigger current of 0.6 A at 2 V is recommended for robust turn-on across temperature and aging. The absolute maximum ratings are IGT ≤ 150 mA and VGT ≤ 2 V at 25°C, but practical designs use ≥1 A peak gate current with <1 µs rise time to ensure margin against di/dt-induced false triggering.