Infineon Technologies TT270N16KOFHPSA1

Overview

TT270N16KOFHPSA1 from Infineon Technologies is a pressure-contact thyristor module for phase-controlled AC power regulation, featuring 1600 V repetitive peak off-state voltage (VDRM/VRRM), 270 A average on-state current at 85 °C case temperature (ITAVM), and 0.58 mΩ slope resistance (rT). It delivers high-reliability switching in industrial rectifier and soft starter systems with electrically insulated baseplate and AMPT construction.

For engineers reviewing the TT270N16KOFHPSA1 datasheet, TT270N16KOFHPSA1 pinout, TT270N16KOFHPSA1 application, or TT270N16KOFHPSA1 equivalent, key selection criteria include surge current rating (9000 A @ 10 ms), junction-to-case thermal resistance (0.113 K/W), gate trigger voltage (≤2 V), and critical dv/dt capability (1000 V/µs) for robust commutation in drive and UPS rectifier circuits.

Technical Context

This dual-thyristor module operates in phase-control mode using gate-triggered conduction with latching current ≥1200 mA and holding current ≤300 mA. Its pressure-contact die attachment enables stable thermal performance under high RMS current (450 A ITRMSM) and transient stress (I²t = 405000 A²s at Tj max).

The device supports both two-pulse (B2) and six-pulse (B6) bridge configurations, with validated thermal impedance ZthJC modeling across conduction angles (30°–180°) and DC/sinusoidal current waveforms. Isolation voltage is rated at 3.6 kV (1 sec, 50 Hz), meeting Class 1 basic insulation per IEC61140.

Key Specifications

Pinout & Package

TT270N16KOFHPSA1 is housed in an industrial-standard press-pack module with electrically insulated AlN ceramic baseplate (17 mm creepage distance) and M1 mechanical mounting (5 Nm torque). The module contains two anti-parallel thyristor dies sharing common cathode/anode terminals and independent gate terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT270N16KOFHPSA1, TT270N16KOFS trades baseplate isolation for lower thermal resistance, while TD270N16KOF offers identical per-arm performance in a single-die format-enabling flexible topology mapping but increasing component count for dual-arm functions.

Availability

TT270N16KOFHPSA1 is available at Aetrix Electronics and suitable for soft starter systems, drive rectifiers, crowbar protection circuits, and UPS rectifier modules requiring stable component supply and long-term industrial lifecycle support.

Supply support for TT270N16KOFHPSA1 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 high-power thyristor module product line, engineered for ruggedized phase-control applications in industrial motor drives, energy conversion, and grid-tied power systems where reliability under thermal and electrical stress is critical.

FAQ

What is the maximum allowable junction temperature for TT270N16KOFHPSA1?

The absolute maximum junction temperature (Tvj max) is 125 °C, validated across all electrical ratings and thermal models in the official Infineon datasheet revision 3.2. Operation beyond this limit risks irreversible degradation of the pressure-contact interface and silicon characteristics, and derating is required above 85 °C case temperature per ITAVM curves.

Does TT270N16KOFHPSA1 require forced cooling?

No, forced cooling is not mandatory, but natural convection is insufficient for full-rated operation. At ITAVM = 270 A, thermal modeling shows ≥0.113 K/W heatsink resistance is required to maintain TC ≤ 85 °C. Most industrial implementations use finned aluminum heatsinks with thermal interface material; fan-assisted airflow reduces required surface area by ~40%.

Can TT270N16KOFHPSA1 be used in reverse-conducting configurations?

No-it is a standard phase-control thyristor module with unidirectional conduction per arm. Reverse conduction requires external freewheeling diodes or a reverse-conducting thyristor (RCT) device. The module's VRRM = 1600 V confirms it blocks reverse voltage but does not conduct it; using it in reverse-conducting mode will cause catastrophic failure.

What gate drive voltage and current are required for reliable triggering?

A minimum gate trigger voltage of 2 V (VGT max) and 200 mA (IGT max) must be delivered within 3 µs (tgd max) at 25 °C. Gate drivers must sustain ≥1 A peak current for latching (IL ≥ 1200 mA), and gate series resistance should be selected to limit peak power to ≤60 W (per PGM curve), typically using 10–22 Ω with 15–20 V pulse sources.