Infineon Technologies TD520N22KOFTIMHPSA1

Overview

TD520N22KOFTIMHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial drive systems. It delivers 520 A average on-state current (ITAVM) at TC = 85 °C, 2200 V repetitive peak off-state voltage (VDRM/VRRM), and features pre-applied thermal interface material (TIM) with electrically insulated baseplate. Used in soft starters and static switches where robust commutation and thermal stability are critical.

For engineers reviewing the TD520N22KOFTIMHPSA1 datasheet, TD520N22KOFTIMHPSA1 pinout, TD520N22KOFTIMHPSA1 application, or TD520N22KOFTIMHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.055 K/W), critical dv/dt rating (1000 V/µs), surge current capability (18 kA), gate trigger voltage (≤2.2 V), and pressure-contact construction for long-term reliability under cyclic thermal stress.

Technical Context

This dual-thyristor module operates in phase-controlled AC circuits using gate-triggered conduction with latching behavior. Its 125 °C maximum junction temperature, 250 µs typical turn-off time (tq), and 200 A/µs critical di/dt rating enable controlled commutation in 50/60 Hz industrial power converters.

The module integrates two anti-parallel thyristor dies in a single press-pack package with AlN ceramic isolation and a 60 mm baseplate. Thermal performance is enhanced by pre-applied TIM, reducing RthCH to 0.0075 K/W per module - critical for high-duty-cycle applications like battery charger rectifiers and crowbar protection circuits.

Key Specifications

Pinout & Package

TD520N22KOFTIMHPSA1 uses a press-pack, double-sided cooled industrial module package with 60 mm × 60 mm baseplate and electrically insulated AlN ceramic substrate. Mechanical terminals follow DIN 46244 A standard (2.8 × 0.8 mm flat contacts). Gate control terminals are isolated low-current inputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT520N22KOF and TD520N22KOF, TD520N22KOFTIMHPSA1 provides out-of-box thermal readiness and safety-certified isolation - reducing qualification time and eliminating risk of TIM voiding or insulation failure in high-vibration environments.

Availability

TD520N22KOFTIMHPSA1 is available at Aetrix Electronics and suitable for soft starters, static switches, and battery charger rectifiers requiring stable component supply, long-life thermal cycling performance, and certified isolation integrity.

Supply support for TD520N22KOFTIMHPSA1 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 9001 and IATF 16949.

This part belongs to Infineon's "Netz-Thyristor-Modul" product line, engineered for high-reliability AC power control in harsh industrial environments - emphasizing pressure-contact longevity, thermal resilience, and gate-drive simplicity.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum case temperature (TC) is +125 °C, as defined by the 125 °C junction temperature limit and RthJC = 0.055 K/W. At ITAVM = 520 A, thermal modeling shows TC reaches 85 °C with a 0.08 K/W heatsink - confirming safe derating up to 125 °C ambient when RthCA ≤ 0.025 K/W.

Can TD520N22KOFTIMHPSA1 be used in a single-phase full-wave rectifier configuration?

Yes - it supports B2 (two-pulse) bridge operation with up to 1400 A peak output current (per datasheet Fig. 7). The anti-parallel thyristor pair allows bidirectional conduction; gate signals must be phased 180° apart to achieve full-wave rectification without shoot-through.

Is the pre-applied TIM compatible with standard thermal greases or pastes?

No - the TIM is a factory-applied, cured silicone-based interface layer optimized for 0.0075 K/W RthCH. Adding external grease may degrade bond integrity and increase interfacial resistance. Heatsink surface must be clean, flat (Ra ≤ 0.8 µm), and free of contaminants before mounting.

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

A minimum gate trigger voltage of 1.5 V and peak current of 500 mA (with di/dt ≥ 1 A/µs) ensures turn-on across temperature and aging. The datasheet specifies VGT ≤ 2.2 V and IGT ≤ 250 mA at 25 °C; design margin requires ≥2× peak current capability to maintain timing accuracy at Tvj = 125 °C.