Infineon Technologies TT240N16SOFHPSA1

Overview

TT240N16SOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial power electronics. It delivers 240 A average on-state current (ITAVM) at TC = 85 °C, 1600 V repetitive peak off-state voltage (VDRM/VRRM), and 5200 A non-repetitive surge current (ITSM), with electrically insulated baseplate and solder-bond construction for thermal reliability in soft starters and UPS rectifiers.

For engineers reviewing the TT240N16SOFHPSA1 datasheet, TT240N16SOFHPSA1 pinout, TT240N16SOFHPSA1 application, or TT240N16SOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.145 K/W), gate trigger current (≤145 mA), critical dv/dt rating (1000 V/µs), and isolation test voltage (3.6 kV for 1 sec), all validated for continuous operation up to 140 °C junction temperature.

Technical Context

This dual-thyristor module implements forced-commutated phase-angle control in AC power circuits, supporting both half-wave and full-wave configurations. Its 0.9 mΩ slope resistance (rT) and 0.85 V threshold voltage (VT0) define conduction efficiency under high RMS loads, while the 370 µs typical turn-off time (tq) enables reliable commutation in 50/60 Hz drive applications.

The module integrates two anti-parallel thyristor dies in an industrial-standard package with Al₂O₃-based basic insulation (IEC 61140 Class 1) and 10 mm creepage distance. Its 0.145 K/W junction-to-case thermal resistance is specified per module under DC conditions, and mounting torque is standardized at 5 Nm for M1 mechanical fasteners.

Key Specifications

Pinout & Package

TT240N16SOFHPSA1 is housed in an industrial-standard isolated baseplate module with solder-bond die attachment. The package features three main terminals (A1, A2, G) per thyristor arm and an electrically insulated copper baseplate (34 mm × 34 mm footprint, 165 g weight).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TD240N16SOF and TT330N16KOF, TT240N16SOFHPSA1 uniquely balances certified baseplate isolation, 240 A continuous rating, and compact 165 g form factor-making it optimal for space-constrained, safety-critical soft starters and UPS rectifiers where thermal and isolation requirements align precisely.

Availability

TT240N16SOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, battery chargers, and static switches requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM production.

Supply support for TT240N16SOFHPSA1 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 certifications including ISO 9001 and IATF 16949.

This part belongs to Infineon's high-power thyristor module portfolio, engineered specifically for robust phase-angle control in industrial motor drives, energy conversion, and grid-tied power systems demanding high reliability and thermal resilience.

FAQ

What is the maximum allowable junction temperature for TT240N16SOFHPSA1?

The maximum junction temperature (Tvj max) is 140 °C, as specified in the official Infineon technical information document revision 3.1 (2018-03-26). This rating applies under all operating conditions including repetitive and non-repetitive stress, and must be maintained via proper heatsink design using the documented RthJC = 0.145 K/W and RthCH = 0.04 K/W values.

Does TT240N16SOFHPSA1 require external snubber circuits?

Snubbers are recommended when operating at dv/dt levels exceeding 1000 V/µs or in circuits with high stray inductance. The device's rated (dvD/dt)cr is 1000 V/µs, meaning snubberless operation is feasible in standard 50/60 Hz applications with controlled commutation, but not guaranteed in transformer-coupled or highly inductive loads without verification.

How is gate drive timing synchronized for anti-parallel operation?

Each thyristor arm has its own dedicated gate terminal (G1/G2), allowing independent triggering. For true anti-parallel AC switching, gate pulses must be offset by 180° within each AC half-cycle and synchronized to zero-crossing detection; the 2 µs maximum gate delay (tgd) ensures precise timing alignment when driven by matched optocoupled gate drivers.

Can TT240N16SOFHPSA1 be used in six-pulse bridge configurations?

Yes-it is explicitly rated for B6 six-pulse bridge operation, with published ID vs. RthCA curves up to 500 A output current. Each module contains two thyristor arms, so three modules are required for a full B6 rectifier. Thermal derating must follow the "B6" curve in Figure 8 of the datasheet, accounting for total power dissipation and case-to-ambient resistance.