Infineon Technologies TD280N16SOFHPSA1

Overview

TD280N16SOFHPSA1 from Infineon Technologies is a phase-control thyristor module with dual anti-parallel thyristor configuration in an industrial-standard insulated package, rated for 1600 V repetitive peak off-state voltage (VDRM/VRRM), 280 A average on-state current at TC = 85 °C (ITAVM), and 9000 A non-repetitive surge current (ITSM). It serves as the main power switching element in high-power AC line-controlled rectifiers and soft starters for industrial motor drives.

For engineers reviewing the TD280N16SOFHPSA1 datasheet, TD280N16SOFHPSA1 pinout, TD280N16SOFHPSA1 application, or TD280N16SOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (RthJC = 0.110 K/W), electrically insulated base plate, pre-applied TIM option, critical dv/dt rating (1000 V/µs), and gate trigger current ≤150 mA.

Technical Context

This dual-thyristor module implements phase-angle control in AC power circuits using gate-triggered conduction. Its anti-parallel configuration enables bidirectional current flow without external reverse-blocking components, supporting full-wave AC control in bridge and back-to-back topologies.

Thermal performance is defined by a maximum junction temperature of 130 °C and a DC junction-to-case thermal resistance of 0.048 K/W per arm. Electrical isolation is achieved via Al₂O₃ ceramic substrate, rated for 3.6 kV RMS insulation test voltage (1 sec).

Key Specifications

Pinout & Package

TD280N16SOFHPSA1 uses an industrial-standard press-pack-style module housing with electrically insulated Al₂O₃ ceramic base plate (50 mm × 50 mm footprint), rated for 3.6 kV RMS isolation. Mechanical mounting uses M1 screws (5 Nm torque); electrical terminals use M2 screws (9 Nm torque) with DIN 46244 A 2.8 × 0.8 mm² control terminal geometry.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT280N16SOF and TD280N16KOF, TD280N16SOFHPSA1 delivers superior thermal interface readiness and highest surge margin-critical for unattended industrial rectifiers where maintenance access is limited and reliability targets exceed 10 years.

Availability

TD280N16SOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, drive rectifiers, UPS systems, and battery chargers requiring stable component supply, long-lifecycle support, and traceable industrial-grade sourcing.

Supply support for TD280N16SOFHPSA1 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 markets.

This part belongs to Infineon's "High-Power Thyristor Modules" product line, engineered for ruggedized AC power control in mission-critical industrial equipment operating continuously at ambient temperatures up to +130 °C.

FAQ

What is the maximum allowable junction temperature for TD280N16SOFHPSA1?

The maximum junction temperature (Tvj max) is 130 °C, as specified in the Infineon technical information document revision 3.8. This limit applies under all operating conditions including repetitive and non-repetitive stress. Exceeding this temperature risks irreversible degradation of the thyristor die and bond interfaces, and must be prevented via proper heatsink sizing, thermal interface selection, and derating per RthJC and ambient conditions.

Does TD280N16SOFHPSA1 require external snubber circuits?

Snubbers are recommended for applications with high dv/dt transients (>500 V/µs) or inductive loads, despite the device's 1000 V/µs critical dv/dt rating. The internal structure does not integrate RC snubbers; external R-C networks across A1–K1 and A2–K2 reduce voltage overshoot during commutation and prevent false triggering. Design guidance is provided in Infineon Application Note AN2017-03 for phase-control modules.

How is the gate drive timing synchronized in dual-thyristor operation?

Each thyristor (G1 and G2) requires independent, isolated gate drive signals phased 180° apart to match AC polarity alternation. Gate pulses must meet minimum width (≥20 µs), amplitude (≥2 V), and di/dt (≥1 A/µs) requirements. Synchronization is typically achieved using transformer-isolated gate drivers referenced to each thyristor's cathode potential, with timing derived from zero-crossing detection of the AC line voltage.

Can TD280N16SOFHPSA1 be used in DC applications?

No-it is designed exclusively for AC phase-control operation. Thyristors cannot be actively turned off in DC circuits without forced commutation. In DC, once triggered, the device remains latched until current falls below the holding current (IH ≤150 mA), which does not occur in constant-current DC paths. For DC switching, IGBT or MOSFET-based solutions with active gate control are required instead.