Infineon Technologies TD160N18SOFHPSA1

Overview

TD160N18SOFHPSA1 from Infineon Technologies is a phase-control thyristor module with dual anti-parallel thyristor arms in an industrial-standard insulated package, rated for 1800 V repetitive peak off-state voltage (VDRM/VRRM), 160 A average on-state current at TC = 85 °C (ITAVM), and 5200 A non-repetitive surge current (ITSM). It delivers 1.1 V threshold voltage (VT0) and 0.99 mΩ slope resistance (rT), enabling high-efficiency power control in soft starters and UPS rectifiers.

For engineers reviewing the TD160N18SOFHPSA1 datasheet, TD160N18SOFHPSA1 pinout, TD160N18SOFHPSA1 application, or TD160N18SOFHPSA1 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 electrically insulated baseplate compliance with IEC61140 Class 1 insulation.

Technical Context

This dual-arm thyristor module implements forced-commutated phase-angle control using solder-bond interconnect technology and Al₂O₃-based internal insulation. Each arm supports 180° conduction with 320 µs typical turn-off time (tq) under 100 V reverse recovery conditions and 10 A/µs commutating di/dt.

It operates across -40 °C to +125 °C case temperature range, with maximum junction temperature of 125 °C and isolation test voltage of 3.6 kV (1 sec RMS). Gate drive requires ≤2.5 V trigger voltage (VGT) and tolerates up to 0.25 V non-trigger voltage (VGD) at 0.5×VDRM.

Key Specifications

Pinout & Package

TD160N18SOFHPSA1 uses an industrial-standard press-fit thyristor module package with electrically insulated Al₂O₃ baseplate (34 mm × 34 mm footprint), M1/M2 terminal torque specifications (5 Nm), and 10 mm creepage distance. Weight: 165 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT160N18SOF and TD160N16KOF, TD160N18SOFHPSA1 uniquely combines 1800 V blocking, 160 A thermal rating, and integrated Class 1 insulation-enabling direct grounded-mounting in safety-critical UPS and battery charger rectifiers without added isolation hardware.

Availability

TD160N18SOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, and industrial drive power controllers requiring stable component supply, long-lifecycle availability, and certified isolation compliance.

Supply support for TD160N18SOFHPSA1 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 automotive ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

This part belongs to Infineon's high-power thyristor module product line, engineered for industrial energy conversion systems demanding high surge robustness, thermal stability, and reinforced electrical isolation in harsh operating environments.

FAQ

What is the maximum allowable case temperature for continuous operation?

The TD160N18SOFHPSA1 supports continuous operation with case temperature (TC) ranging from –40 °C to +125 °C. At TC = 85 °C, it delivers its rated 160 A average on-state current (ITAVM); derating applies above this point per the published ITAVM vs. TC curve, with full de-rating to zero at TC = 125 °C.

Does this module require external snubbers for typical 50/60 Hz phase-control use?

Yes - although rated for 1000 V/µs critical dv/dt, real-world line transients and inductive load commutation often exceed this. A properly sized RC snubber across each main terminal pair (A1–K1, A2–K2) is recommended to suppress voltage overshoot and prevent false triggering, especially in B6 bridge configurations with motor loads.

Can the gate terminals G1 and G2 be driven independently?

Yes - G1 and G2 are fully isolated control inputs referenced to their respective cathodes (K1 and K2). Independent gating enables asymmetrical firing angles for specialized wave-shaping or regenerative control, provided gate drive circuits maintain ≥0.25 V non-trigger voltage margin and respect the 2.5 V VGT max specification.

What is the significance of the "HPSA1" suffix in the full part number?

The "HPSA1" suffix denotes Infineon's internal production variant code: "HP" indicates high-power solder-bond construction, "SA" specifies Al₂O₃ insulated baseplate with Class 1 safety rating, and "1" identifies the revision level of mechanical and thermal design - distinguishing it from non-insulated (e.g., TT-series) or earlier SA0 variants.