Infineon Technologies TT320N16SOFTIMHPSA1

Overview

TT320N16SOFTIMHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line commutated switching in industrial rectifier and power control applications. It delivers 320 A average on-state current (ITAVM) at TC = 85 °C, 1600 V repetitive peak off-state voltage (VDRM/VRRM), and 9500 A non-repetitive surge current (ITSM), with electrically insulated baseplate and pre-applied thermal interface material (TIM).

For engineers reviewing the TT320N16SOFTIMHPSA1 datasheet, TT320N16SOFTIMHPSA1 pinout, TT320N16SOFTIMHPSA1 application, or TT320N16SOFTIMHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.110 K/W), critical dv/dt rating (1000 V/µs), gate trigger current (≤150 mA), and RMS on-state current capability (520 A) under sinusoidal conduction.

Technical Context

This dual-thyristor module operates in line-commutated phase-angle control mode, supporting bidirectional blocking and unidirectional conduction per arm. Its 130 °C maximum junction temperature, 0.58 mΩ slope resistance (rT), and 0.77 V threshold voltage (VT0) define its conduction loss profile under high-current DC or low-frequency AC loads.

The module integrates solder-bond interconnect technology and Al₂O₃-based basic insulation (IEC 61140 Class 1), enabling direct mounting to heatsinks with TIM pre-applied. Its 10 mm creepage distance and 3.6 kV insulation test voltage (1 sec) support operation in industrial environments requiring reinforced isolation.

Key Specifications

Pinout & Package

TT320N16SOFTIMHPSA1 is housed in an industrial-standard isolated package with electrically insulated baseplate (Al₂O₃ ceramic), 50 mm baseplate dimension, and M2 terminal torque specification (9 Nm ±15%). The module contains two independent thyristor arms sharing a common heatsink interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TD320N16SOF and TT500N16KOF, TT320N16SOFTIMHPSA1 uniquely combines pre-applied TIM, 50 mm form factor, and 320 A rating-optimizing thermal reliability and assembly yield in mid-power industrial rectifiers where footprint and process consistency are constrained.

Availability

TT320N16SOFTIMHPSA1 is available at Aetrix Electronics and suitable for soft starters, drive rectifiers, UPS front-ends, and battery chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.

Supply support for TT320N16SOFTIMHPSA1 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 for industrial, automotive, and renewable energy markets.

This part belongs to Infineon's BIP (Bipolar Power Modules) product line, engineered for high-reliability line-commutated power conversion in harsh industrial environments where thermal stability, isolation integrity, and surge robustness are critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is +130 °C, but the rated average on-state current (ITAVM = 320 A) is specified at TC = 85 °C. Operation above 85 °C requires derating per the ITAVM vs. TC curve in the datasheet; junction temperature must not exceed 130 °C under any condition.

Does TT320N16SOFTIMHPSA1 require external snubbers in standard phase-control applications?

Snubbers are recommended for applications with high dv/dt stress (>500 V/µs) or inductive loads. While the module supports 1000 V/µs critical dv/dt, real-world line transients and transformer leakage inductance may exceed this-especially in 6-pulse rectifiers-necessitating RC snubber networks across each thyristor arm.

How does the pre-applied TIM affect thermal interface lifetime and reworkability?

The pre-applied TIM is a silicone-based phase-change material that softens above 50 °C to fill microscopic surface voids. It maintains stable thermal resistance over 1000 thermal cycles (−40 °C to +130 °C) but is not designed for multiple removal/reinstallation cycles-rework requires cleaning residue and applying new TIM per Infineon's mounting guidelines.

Can TT320N16SOFTIMHPSA1 be used in reverse-conducting configurations?

No-it is a standard phase-control thyristor module with unidirectional conduction per arm. For reverse-conducting operation (e.g., in matrix converters), discrete reverse-conducting thyristors or integrated RC-IGBT modules are required; this device lacks reverse conduction capability and will block reverse current.