Infineon Technologies TD320N16SOFHPSA1

Overview

TD320N16SOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line commutated switching in industrial power conversion systems. It delivers 320 A average on-state current (ITAVM) at TC = 85 °C, 1600 V repetitive peak off-state voltage (VDRM/VRRM), and 9500 A non-repetitive surge current (ITSM), enabling robust operation in soft starters and UPS rectifiers.

For engineers reviewing the TD320N16SOFHPSA1 datasheet, TD320N16SOFHPSA1 pinout, TD320N16SOFHPSA1 application, or TD320N16SOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.110 K/W), gate trigger current (≤150 mA), critical dv/dt rating (1000 V/µs), and electrically insulated baseplate compatibility with forced-air or liquid-cooled heatsinks.

Technical Context

This dual-thyristor module operates in line-commutated mode with symmetrical forward/reverse blocking capability and is rated for 130 °C maximum junction temperature. Its solder-bond construction ensures low parasitic inductance and stable thermal performance under 50/60 Hz AC waveforms with conduction angles down to 30°.

The device features a basic insulation barrier (Al₂O₃ ceramic, 10 mm creepage) and supports both two-pulse (B2) and six-pulse (B6) bridge configurations. Gate control requires ≤2 V trigger voltage and tolerates up to 0.25 V non-triggering voltage at 0.5×VDRM, ensuring noise immunity in high-noise drive environments.

Key Specifications

Pinout & Package

TD320N16SOFHPSA1 uses an industrial-standard isolated baseplate package with solder-bond interconnect technology. The module integrates two anti-parallel thyristors in a single housing with electrically insulated copper baseplate (Al₂O₃ dielectric), M1 mounting screws (5 Nm), and M2 terminal screws (9 Nm) for main and gate connections.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT320N16SOF, TD320N16SOFHPSA1 offers guaranteed pre-applied TIM for repeatable thermal performance, while TD320N16KO trades dv/dt immunity for cost reduction-neither is pin-compatible with the HPSA1 variant's enhanced reliability features.

Availability

TD320N16SOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, battery chargers, and static switches requiring stable component supply across industrial OEM production cycles.

Supply support for TD320N16SOFHPSA1 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 security solutions, with global manufacturing and R&D infrastructure.

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

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum case temperature is not fixed but derived from ITAVM derating curves. At ITAVM = 320 A and TC = 85 °C, the module assumes RthJC = 0.110 K/W and junction temperature ≤130 °C. For higher case temperatures, current must be reduced per the TC = f(ITAVM) curve on page 7 of the datasheet, with absolute limit at TC = 130 °C when ITAVM = 0 A.

Can TD320N16SOFHPSA1 be used in a single-phase AC controller?

Yes-it supports single-phase operation in back-to-back or anti-parallel configurations using only one arm (A1/K2 + G1). However, its dual-arm structure is optimized for three-phase B2/B6 bridges; single-phase use requires gate timing adaptation and may underutilize thermal capacity unless paralleled appropriately.

Is the baseplate electrically isolated from all internal terminals?

Yes-the baseplate is fully isolated from A1, K1, A2, K2, G1, and G2 via Al₂O₃ ceramic (basic insulation, 3.6 kV/1 sec). This allows direct mounting to grounded heatsinks without additional isolation hardware, meeting Class I safety requirements per IEC61140.

Does this module require a snubber circuit for typical 50/60 Hz operation?

Not for standard line-frequency operation: its 1000 V/µs (dv/dt)cr rating exceeds typical utility transients. Snubbers are only needed if system-level dv/dt exceeds this value-e.g., due to nearby IGBT switching or long cable runs-and must be sized per the gate-controlled delay time (tgd ≤ 2 µs) and commutation behavior specified in section 3 of the datasheet.