Infineon Technologies TD285N16KOFHPSA2

Overview

TD285N16KOFHPSA2 from Infineon Technologies is a phase-control thyristor module with pressure-contact construction, rated for 1600 V repetitive peak off-state voltage (VDRM/VRRM), 285 A average on-state current at TC = 93 °C (ITAVM), and 12.5 kA non-repetitive surge current (ITSM). It features electrically insulated baseplate, 0.5 mΩ slope resistance (rT), and 0.106 K/W junction-to-case thermal resistance (RthJC), designed for high-reliability industrial power control in soft starters and static switches.

For engineers reviewing the TD285N16KOFHPSA2 datasheet, TD285N16KOFHPSA2 pinout, TD285N16KOFHPSA2 application, or TD285N16KOFHPSA2 equivalent, key selection criteria include verified VDRM/VRRM rating, ITAVM derating across conduction angles, gate trigger thresholds (IGT ≤ 200 mA, VGT ≤ 2 V), and thermal performance under DC and rectified load conditions.

Technical Context

This dual-thyristor module implements phase-angle control in AC power circuits using pressure-contact silicon die technology to ensure mechanical stability and thermal cycling robustness. Its 130 °C maximum junction temperature (Tvj max) and 0.053–0.106 K/W RthJC range support operation under high RMS current stress in B2 and B6 bridge configurations.

The device delivers precise turn-on control via gate trigger parameters (tgd ≤ 3 µs, IL ≤ 1200 mA, IH ≤ 300 mA) and maintains blocking integrity with (dv/dt)cr ≥ 1000 V/µs and (di/dt)cr ≥ 250 A/µs, enabling reliable commutation in crowbar and UPS rectifier applications.

Key Specifications

Pinout & Package

TD285N16KOFHPSA2 is housed in an industrial-standard press-pack module with electrically insulated baseplate (AlN ceramic), 50 mm × 50 mm footprint, and M1/M2 screw terminals. Mechanical mounting torque: 5 Nm (±15%); electrical terminal torque: 12 Nm (±10%). 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 TT285N16KOFHPSA2 and SKKT 285/16 E, TD285N16KOFHPSA2 offers identical electrical performance to the former while providing 15 A higher ITAVM and 0.014 K/W lower RthJC than the latter-directly translating to higher power density and reduced heatsink size in space-constrained drives.

Availability

TD285N16KOFHPSA2 is available at Aetrix Electronics and suitable for soft starters, rectifiers for drives, crowbar protection circuits, and static switches requiring stable component supply across multi-year industrial equipment lifecycles.

Supply support for TD285N16KOFHPSA2 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.

TD285N16KOFHPSA2 belongs to Infineon's Thyristor Module product line, engineered for high-efficiency, high-reliability AC power control in industrial motor drives, UPS systems, and grid-connected power conditioning equipment.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is +130 °C, aligned with the 130 °C maximum junction temperature (Tvj max) and 0.106 K/W RthJC. Derating curves on page 7 of the technical information show ITAVM drops to 200 A at TC = 110 °C for 180° conduction, confirming thermal limits must be enforced via heatsink design and ambient control.

Does TD285N16KOFHPSA2 require forced air cooling?

No-forced air cooling is not mandatory. The module supports natural convection or heatsink-only cooling when RthCA ≤ 0.15 K/W, as shown in Figure 8 (B6 bridge) where 500 A output is achievable at TA = 40 °C with RthCA = 0.15 K/W. However, forced airflow improves margin for high-duty-cycle applications like UPS rectifiers.

Can TD285N16KOFHPSA2 be used in anti-parallel configuration for AC switching?

Yes-its dual-arm structure (A1/K2 and K1/A2) and symmetric blocking capability (VDRM = VRRM = 1600 V) make it suitable for anti-parallel connection in AC static switches. Gate drive must be isolated and synchronized to prevent shoot-through, and gate timing must respect tq = 250 µs minimum commutation time per arm.

What is the creepage distance and insulation rating?

The creepage distance is 17 mm, and the module provides basic insulation (Class 1 per IEC61140) with 3.6 kV RMS isolation voltage for 1 second. This meets EN 50178 requirements for industrial equipment up to 1000 V AC mains, supporting direct mounting without supplemental insulation barriers.