Infineon Technologies TT280N16SOFHPSA1

Overview

TT280N16SOFHPSA1 from Infineon Technologies is a phase-control thyristor module configured as a dual-arm, electrically isolated 1600 V / 280 A (T_C = 85 °C) power switching device with solder-bond construction, 0.82 mΩ slope resistance, and pre-applied thermal interface material (TIM), used in industrial soft starters and UPS rectifier stacks.

For engineers reviewing the TT280N16SOFHPSA1 datasheet, TT280N16SOFHPSA1 pinout, TT280N16SOFHPSA1 application, or TT280N16SOFHPSA1 equivalent, key selection criteria include repetitive peak off-state voltage (V_DRM/V_RRM = 1600 V), surge current rating (I_TSM = 9000 A), junction-to-case thermal resistance (R_thJC = 0.110 K/W @ 180° sin), gate trigger current (I_GT ≤ 150 mA), and insulated baseplate mechanical mounting (M2 = 9 Nm).

Technical Context

This dual-thyristor module implements forced-commutated phase-angle control in AC line-frequency power conversion circuits. It supports 50/60 Hz operation with critical dv/dt rating of 1000 V/µs and di/dt capability of 100 A/µs, enabling reliable triggering under high-noise industrial conditions.

The module integrates two anti-parallel thyristor dies per arm in an industrial-standard package with Al₂O₃-based basic insulation (IEC 61140 Class 1), rated for 3.6 kV insulation test voltage (1 sec), and operates across -40 °C to +130 °C case temperature range.

Key Specifications

Pinout & Package

TT280N16SOFHPSA1 uses an industrial-standard press-pack-style module housing with electrically insulated Al₂O₃ baseplate, 50 mm × 70 mm footprint, and M2 terminal screws (9 Nm torque). The module contains two independent thyristor arms, each with anode, cathode, and gate terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TD280N16SOF and TT280N16KOF, TT280N16SOFHPSA1 delivers lowest total thermal resistance in production-ready form due to factory-applied TIM and maintains full 10 mm creepage for Class 1 safety compliance-critical for certified UPS and drive systems.

Availability

TT280N16SOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, drive power controllers, and battery charger rectifiers requiring stable component supply, long lifecycle support, and traceable industrial-grade sourcing.

Supply support for TT280N16SOFHPSA1 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 security solutions for industrial, automotive, and energy markets.

This part belongs to Infineon's high-power thyristor module product line, engineered for robust phase-angle control in heavy-duty AC power conditioning systems operating at 50/60 Hz with stringent thermal and isolation requirements.

FAQ

What is the maximum allowable junction temperature for TT280N16SOFHPSA1?

The maximum junction temperature (T_{vj max}) is 130 °C, validated per IEC 60747-6. This rating defines the upper thermal limit for safe conduction and ensures parameter stability across the full operating range. Exceeding this temperature risks irreversible degradation of the thyristor die and solder-bond interfaces.

Does TT280N16SOFHPSA1 require external snubber circuits?

Snubbers are recommended for applications with high dv/dt stress (>500 V/µs) or inductive loads, despite the device's 1000 V/µs critical dv/dt rating. The internal gate structure provides basic immunity, but external RC snubbers across A–K terminals improve reliability in six-pulse bridge configurations with fast-switching IGBT inverters on the DC side.

How is thermal interface material applied in TT280N16SOFHPSA1?

The TIM is factory-applied as a uniform, controlled-thickness layer on the insulated baseplate surface. It is optimized for compatibility with standard aluminum heatsinks and remains stable across −40 °C to +130 °C. No reapplication or surface preparation is required before mounting, provided mating surfaces meet Ra ≤ 1.6 µm roughness.

Can TT280N16SOFHPSA1 be used in parallel configurations?

Parallel operation is not recommended without active current-sharing circuitry. Although the module exhibits matched dynamic characteristics within manufacturing tolerance, static V_T0 variation (±0.1 V) and thermal coupling differences between arms can cause current imbalance exceeding 15% under steady-state load, risking thermal runaway in unbalanced setups.