Infineon Technologies TD820N16KOFHPSA1

Overview

TD820N16KOFHPSA1 from Infineon Technologies is a press-pack, dual-arm phase-control thyristor module rated for 1600 V repetitive peak off-state voltage (VDRM/VRRM), 820 A average on-state current at TC = 85°C (ITAVM), and 24.8 kA non-repetitive surge current (ITSM). It features electrically insulated baseplate, pre-applied thermal interface material (TIM), and Advanced Medium Power Technology (AMPT) for high-reliability industrial power control in soft starters and static switches.

For engineers reviewing the TD820N16KOFHPSA1 datasheet, TD820N16KOFHPSA1 pinout, TD820N16KOFHPSA1 application, or TD820N16KOFHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.045 K/W per arm), critical dv/dt rating (1000 V/µs), gate trigger current (≤250 mA), and pressure-contact construction enabling high-current conduction with low thermal impedance in high-power AC line switching.

Technical Context

This dual-thyristor module operates in phase-controlled AC power circuits where precise firing-angle control enables adjustable RMS output voltage. Its 135°C maximum junction temperature, 250 µs circuit commutated turn-off time (tq), and 200 A/µs critical di/dt support robust operation in motor drive rectifiers and crowbar protection systems under transient overload conditions.

The module integrates two independent thyristor arms in a single 60 mm baseplate package with AlN ceramic isolation and DIN 46244 A control terminals. Gate triggering is specified at ≤2 V (VGT) and ≤250 mA (IGT) under standard test conditions, while holding and latching currents ensure stable conduction once triggered.

Key Specifications

Pinout & Package

TD820N16KOFHPSA1 is housed in an industrial-standard press-pack module with 60 mm insulated baseplate and DIN 46244 A control terminals. The package provides double-sided electrical isolation (3.6 kV insulation test voltage) and supports mechanical mounting via M1 (6 Nm) and terminal torque via M2 (12 Nm).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT820N16KOF, TD820N16KOFHPSA1 delivers plug-and-play thermal assembly and safer grounding; versus TD920N16KOFHPSA1, it offers proven mechanical compatibility and lower system integration risk in volume production.

Availability

TD820N16KOFHPSA1 is available at Aetrix Electronics and suitable for soft starters, drive rectifiers, and static switches requiring stable component supply, long-lifecycle assurance, and certified industrial-grade thermal performance.

Supply support for TD820N16KOFHPSA1 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 industrial control solutions, with global manufacturing and quality certification to IATF 16949 and ISO 9001.

TD820N16KOFHPSA1 belongs to Infineon's High-Power Thyristor Module product line, engineered for ruggedized AC power control in mission-critical industrial infrastructure including energy conversion, traction, and grid-tied systems.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum allowable case temperature (TC) is +135°C, aligned with the 135°C maximum junction temperature (Tvj max) and 0.045 K/W thermal resistance. At TC = 85°C, the module delivers its rated 820 A ITAVM; derating curves in the datasheet define linear current reduction above 85°C up to the 135°C limit.

Does TD820N16KOFHPSA1 require external snubbers for typical 50/60 Hz operation?

No external RC snubbers are required on main terminals under standard 50/60 Hz phase-control operation due to its 1000 V/µs critical dv/dt rating and pressure-contact construction. Snubbers may still be needed in high-di/dt switching environments (>200 A/µs) or with highly inductive loads exceeding datasheet test conditions.

How is gate triggering synchronized between the two arms?

Each arm has fully independent gate terminals (G1, G2) with identical trigger specifications (IGT ≤ 250 mA, VGT ≤ 2 V). Synchronization is achieved externally via matched gate drivers and timing circuits; no internal coupling exists, allowing flexible firing sequences including asymmetrical or interleaved control for harmonic reduction.

Can the baseplate be directly mounted to a grounded aluminum heatsink?

Yes - the baseplate uses AlN ceramic insulation rated for 3.6 kV RMS (1 sec) and meets EN61140 Class 1 basic insulation requirements. Direct mounting to a grounded heatsink is permitted and recommended; no additional isolation pads or hardware are needed unless system-level safety standards mandate reinforced insulation.