Infineon Technologies TD305N16KOFHPSA1

Overview

TD305N16KOFHPSA1 from Infineon Technologies is a phase-control thyristor module designed for high-power AC line switching in industrial power electronics. It delivers 305 A average on-state current (ITAVM) at TC = 85 °C, 1600 V repetitive peak off-state voltage (VDRM/VRRM), and features pressure-contact construction with electrically insulated baseplate. It is used in soft starters, UPS rectifiers, and static power controllers where robust, thermally stable bidirectional conduction is required.

For engineers reviewing the TD305N16KOFHPSA1 datasheet, TD305N16KOFHPSA1 pinout, TD305N16KOFHPSA1 application, or TD305N16KOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.113 K/W), critical dv/dt rating (1000 V/µs), gate trigger parameters (IGT ≤ 200 mA, VGT ≤ 2.0 V), and surge current capability (9000 A, 10 ms).

Technical Context

This thyristor module implements a dual-arm, press-pack design with silicon pellets mounted via pressure contact-eliminating wire bonds and solder joints to enhance thermal cycling endurance and power-cycle reliability. Its 130 °C maximum junction temperature and 3.6 kV insulation test voltage (1 sec) support operation in harsh industrial environments with high transient immunity.

The device operates in natural- or forced-commutated circuits with a typical turn-off time of 250 µs under specified conditions (vRM = 100 V, dvD/dt = 20 V/µs). Gate control uses standard DC-triggering with defined latching (IL ≤ 1200 mA) and holding (IH ≤ 300 mA) thresholds, enabling compatibility with conventional pulse transformers and opto-triggers.

Key Specifications

Pinout & Package

TD305N16KOFHPSA1 is housed in an industrial-standard press-pack module with electrically insulated aluminum nitride (AlN) baseplate, 50 mm width, and M2 (12 Nm) terminal torque specification. The module contains two independent thyristor arms arranged in a common-base configuration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT305N16KOF and TD330N16KOF, TD305N16KOFHPSA1 uniquely combines certified reinforced insulation (3.6 kV), industry-standard 50 mm footprint, and optimized 305 A rating-making it the preferred choice for safety-compliant, space-constrained industrial rectifiers and soft starters.

Availability

TD305N16KOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, battery chargers, and static switches requiring stable component supply, long-lifecycle assurance, and certified isolation performance.

Supply support for TD305N16KOFHPSA1 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 "Netz-Thyristor-Modul" series-engineered specifically for high-reliability, medium-power 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 (TC) is not explicitly specified as a standalone limit; instead, the device is rated for ITAVM = 305 A at TC = 85 °C. Operation above this temperature reduces current rating per derating curves in the datasheet (Page 7), with absolute maximum junction temperature (Tvj max) fixed at 130 °C. Thermal design must ensure TC remains ≤85 °C under full load to maintain rated current.

Does TD305N16KOFHPSA1 require a heatsink? If so, what thermal resistance is recommended?

Yes, a heatsink is mandatory. With RthJC = 0.113 K/W and maximum conduction loss ~412 W (at ITAVM = 305 A, vT = 1.36 V), a heatsink with RthCA ≤ 0.25 K/W is recommended to maintain TC ≤ 85 °C at ambient ≤ 40 °C. The datasheet provides RthCA vs. ID curves (Pages 8–9) for B2/B6 configurations under forced-air or liquid cooling.

Can this module be used in a single-phase full-wave bridge?

Yes. The dual-arm structure supports single-phase full-wave (B2) rectification: A1/K1 and A2/K2 form anti-parallel pairs across the AC input, with G1/G2 independently triggered to control conduction angle in each half-cycle. The module's 1600 V VDRM rating supports up to 1100 V RMS line voltage, making it suitable for 690 VAC industrial systems.

What is the gate drive requirement for reliable turn-on?

A minimum gate trigger current of 200 mA (IGT max) and voltage of 2.0 V (VGT max) at 25 °C is required. Recommended drive is a 1–2 A, 20–50 µs pulse with diG/dt ≥ 1 A/µs to ensure fast, uniform turn-on across the pellet. Gate non-trigger limits (IGD ≤ 10 mA, VGD ≤ 0.2 V) mandate proper noise suppression and isolation to prevent false firing.