Infineon Technologies TT820N16KOFTIMHPSA1

Overview

TT820N16KOFTIMHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching in industrial power conversion systems. It delivers 820 A average on-state current (ITAVM) at TC = 85°C, 1600 V repetitive peak off-state voltage (VDRM/VRRM), and 24.8 kA non-repetitive surge current (ITSM), with electrically insulated baseplate and pre-applied thermal interface material (TIM). It is used in soft starters for large induction motors.

For engineers reviewing the TT820N16KOFTIMHPSA1 datasheet, TT820N16KOFTIMHPSA1 pinout, TT820N16KOFTIMHPSA1 application, or TT820N16KOFTIMHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.045 K/W per arm), critical dv/dt rating (1000 V/µs), gate trigger current (≤250 mA), and pressure-contact construction for high-cycle reliability under repetitive surge stress.

Technical Context

This dual-thyristor, press-pack module implements phase-angle control in AC mains-fed power electronics. Its 135°C maximum junction temperature, 0.23 mΩ slope resistance (rT), and 0.8 V threshold voltage (VT0) define conduction efficiency and thermal design margins. The module supports both half-wave and full-wave configurations with 180° conduction capability.

It features class-1 basic insulation (AlN ceramic), 3.6 kV isolation test voltage (1 sec), and mechanical mounting via M2 terminals (12 Nm torque). Gate drive requires ≤2 V trigger voltage and tolerates up to 0.25 V non-trigger voltage at elevated junction temperature, ensuring noise-immune turn-on in noisy industrial environments.

Key Specifications

Pinout & Package

Package: Press-pack, double-sided cooled, industrial-standard housing with electrically insulated AlN baseplate (60 mm footprint); includes pre-applied TIM layer and M2 terminal screws (12 Nm).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TD820N16KOF and TT1000N16KOF, TT820N16KOFTIMHPSA1 uniquely balances 820 A rating, pre-applied TIM, and 60 mm industrial footprint-making it optimal for space-constrained soft starter and UPS rectifier designs where assembly repeatability and thermal margin are prioritized.

Availability

TT820N16KOFTIMHPSA1 is available at Aetrix Electronics and suitable for soft starters, industrial rectifier bridges, crowbar protection circuits, and static bypass switches requiring stable component supply across multi-year production programs.

Supply support for TT820N16KOFTIMHPSA1 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 energy systems.

This part belongs to Infineon's high-power thyristor module product line, engineered specifically for ruggedized phase-control applications in motor drives, power conditioning, and grid-tied protection systems where reliability under repetitive surge and thermal cycling is critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is +135°C, but the rated 820 A average on-state current (ITAVM) is specified at TC = 85°C. Operation above 85°C requires linear derating per published curves-e.g., ~620 A at TC = 110°C for 180° conduction. Exceeding TC = 135°C risks irreversible junction damage.

Can TT820N16KOFTIMHPSA1 be used in parallel configurations?

No-this module is not characterized or qualified for paralleling. Its pressure-contact design and inherent parameter spread (e.g., VT0 tolerance ±10%) make current sharing unstable without active balancing. For higher current, use higher-rated single modules like TT1000N16KOF or multi-module stacks with individual gate timing control.

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

A minimum gate trigger voltage of 2 V (VGT max) and pulse width ≥20 µs are required at 25°C. At maximum junction temperature (135°C), gate trigger current must reach 250 mA (IGT max) within the first 4 µs (tgd max) to ensure deterministic turn-on. Standard optocoupled drivers with 2 A peak output meet this requirement.

Is the pre-applied TIM layer reworkable or replaceable?

Yes-the TIM layer is silicone-based and removable with isopropyl alcohol and lint-free wipes. After cleaning, standard thermal greases (e.g., Dow Corning TC-5122) or phase-change pads may be applied. However, rework voids the factory thermal performance guarantee and requires validation of RthCH ≤ 0.015 K/W under actual mounting torque (12 Nm ±10%).