Infineon Technologies TT500N14KOFXPSA1

Overview

TT500N14KOFXPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial drive systems. It delivers 500 A average on-state current (ITAVM) at TC = 85°C, supports repetitive blocking voltages up to 1400 V (VDRM/VRRM), and features pressure-contact construction with electrically insulated baseplate for thermal and electrical isolation in crowbar and soft-starter applications.

For engineers reviewing the TT500N14KOFXPSA1 datasheet, TT500N14KOFXPSA1 pinout, TT500N14KOFXPSA1 application, or TT500N14KOFXPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.055 K/W), critical dv/dt rating (1000 V/µs), gate trigger voltage (≤2.2 V), and surge current capability (17 kA, 10 ms).

Technical Context

This dual-thyristor module operates in phase-controlled AC power circuits where precise conduction-angle modulation enables adjustable power delivery. Its pressure-contact die attachment ensures low parasitic inductance and stable thermal performance under repetitive surge conditions, while the electrically insulated AlN-based baseplate enables direct mounting to heatsinks without additional isolation hardware.

The device supports both two-pulse (B2) and six-pulse (B6) bridge configurations, with validated derating curves for ITAVM across conduction angles (30°–180°) and case temperature (−40°C to +125°C). Critical turn-off time (tq = 250 µs typ.) and commutation-safe dv/dt (1000 V/µs) enable reliable operation in static switch and UPS rectifier topologies.

Key Specifications

Pinout & Package

TT500N14KOFXPSA1 is housed in an industrial-standard press-pack module with electrically insulated AlN baseplate (60 mm × 60 mm footprint, 1450 g weight). Mechanical terminals follow DIN 46244 A standard (2.8 × 0.8 mm cross-section); control terminals are M2 screw-type with 12 Nm torque spec.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT500N14KOFXPSA1, the TT500N16KOFXPSA1 offers higher voltage headroom without thermal or gate-drive trade-offs, while the TD500N14KOFXPSA1 sacrifices integration density and B6-ready layout for configurability in non-standard converter architectures.

Availability

TT500N14KOFXPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, battery chargers, and static switches requiring stable component supply across multi-year industrial equipment lifecycles.

Supply support for TT500N14KOFXPSA1 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 R&D infrastructure.

This part belongs to Infineon's high-power thyristor module product line, engineered specifically for ruggedized phase-control applications in energy conversion, motor control, and grid-tied power systems.

FAQ

What is the maximum allowable junction temperature for TT500N14KOFXPSA1?

The absolute maximum junction temperature (Tvj max) is 125°C, as specified in the thermal characteristics section of the technical information document. Operation beyond this limit risks irreversible degradation of the silicon die and pressure-contact interface. Derating curves in the datasheet define safe ITAVM limits versus case temperature to maintain Tvj ≤ 125°C under continuous load.

Does TT500N14KOFXPSA1 require forced-air cooling?

No-forced-air cooling is not mandatory. The module achieves rated ITAVM (500 A) with natural convection and a properly sized heatsink achieving RthCA ≤ 0.25 K/W, as shown in Figure 8 of the technical document. However, forced-air or liquid cooling extends power capability in compact enclosures or high-ambient environments (>50°C).

Can TT500N14KOFXPSA1 be used in asymmetrical half-wave configurations?

Yes-it supports asymmetrical firing modes. Each thyristor arm (A1/K2 and K1/A2) operates independently, allowing unbalanced conduction angles. This is validated in the "Steuercharakteristik" (gate characteristic) and "Zth Θ rec/sin" derating data, which explicitly model non-180° conduction scenarios for harmonic-sensitive applications like transformerless rectifiers.

What is the creepage distance and why does it matter for this module?

The creepage distance is 19 mm, measured across the insulated baseplate surface between main terminals. This value satisfies IEC 61800-5-1 requirements for Pollution Degree 3 environments, ensuring reliable isolation in dusty, humid, or conductive-contaminant industrial settings where surface tracking could otherwise cause short circuits or safety hazards.