Infineon Technologies TD170N16KOFHPSA1

Overview

TD170N16KOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching and rectification in industrial drive systems. It delivers 170 A average on-state current at TC = 85 °C, supports 1600 V repetitive peak off-state voltage (VDRM/VRRM), and features pressure-contact die attachment for thermal and mechanical robustness. Used in soft starters and static power controllers where precise conduction-angle control and crowbar protection are required.

For engineers reviewing the TD170N16KOFHPSA1 datasheet, TD170N16KOFHPSA1 pinout, TD170N16KOFHPSA1 application, or TD170N16KOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.17 K/W), critical dv/dt rating (1000 V/µs), gate trigger current (≤200 mA), and insulated baseplate construction for safe mounting on heatsinks.

Technical Context

This dual-thyristor module operates in phase-controlled AC applications using gate-triggered turn-on with precise timing control over conduction angle (Θ). Its pressure-contact silicon pellet design ensures low thermal resistance and stable parameter drift under repeated surge stress (ITSM = 5200 A, 10 ms).

The device integrates electrically isolated baseplate (3.0 kV RMS insulation test) and supports both two-pulse (B2) and six-pulse (B6) bridge configurations. Thermal performance is characterized by transient impedance ZthJC modeling and DC thermal resistance per arm (0.17 K/W), enabling accurate loss and temperature rise prediction in rectifier and power controller designs.

Key Specifications

Pinout & Package

TD170N16KOFHPSA1 uses an industry-standard press-pack module package with electrically insulated baseplate (AlN ceramic), 50 mm × 50 mm footprint, and M1/M2 screw terminals. Mounting torque: 5 Nm (mechanical), 12 Nm (electrical). Weight: 800 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT170N16KOFHPSA1, TD170N16KOFHPSA1 is functionally identical but assigned a distinct SAP material number for traceability; versus TD170N18KOFHPSA1, it trades 200 V blocking headroom for tighter voltage tolerance and lower cost in standard 690 VAC industrial systems.

Availability

TD170N16KOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, rectifiers for drives, crowbar protection circuits, and static power controllers requiring stable component supply across multi-year production cycles.

Supply support for TD170N16KOFHPSA1 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 centers.

This part belongs to Infineon's high-power thyristor module product line, engineered specifically for ruggedized industrial AC power control-emphasizing thermal resilience, gate drive simplicity, and long-term reliability in harsh electromagnetic environments.

FAQ

What is the maximum allowable junction temperature for TD170N16KOFHPSA1?

The maximum junction temperature (Tvj max) is 125 °C, as specified in the thermal properties section of the official Infineon technical information document (Revision 3.1, 2014-04-23). This limit applies under all operating conditions, including surge events, and must be maintained via proper heatsinking and thermal interface design to ensure rated ITAVM and lifetime reliability.

Does TD170N16KOFHPSA1 require forced air cooling?

No - forced air cooling is not mandatory. The module can operate with natural convection or conductive cooling when mounted on a sufficiently sized heatsink with RthCA ≤ 0.15 K/W, as shown in Figure 8 of the datasheet. For continuous 170 A operation at 85 °C case temperature, a heatsink with ≤0.12 K/W thermal resistance is recommended under typical ambient conditions.

Can TD170N16KOFHPSA1 be used in anti-parallel configuration for AC switching?

Yes - its dual-thyristor architecture supports anti-parallel connection for bidirectional AC switching. Each arm (A1-K2 and K1-A2) is fully rated for 1600 V blocking and 170 A average current, enabling symmetrical conduction in both half-cycles when paired with appropriate gate drive isolation and timing.

What gate drive voltage and current are required to reliably trigger TD170N16KOFHPSA1?

A minimum gate trigger voltage of 2.0 V and current of 200 mA must be applied at the gate terminals (G1/G2) with 12 V anode-cathode voltage, per the datasheet's VGT and IGT max specifications. Pulse width should exceed 20 µs to ensure latching, and peak gate power must stay below 150 W for 0.1 ms pulses as defined in Figure 6.