Infineon Technologies TD820N16KOFTIMHPSA1

Overview

TD820N16KOFTIMHPSA1 from Infineon Technologies is a press-pack, double-sided cooled, 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 industrial power control in soft starters and UPS rectifiers.

For engineers reviewing the TD820N16KOFTIMHPSA1 datasheet, TD820N16KOFTIMHPSA1 pinout, TD820N16KOFTIMHPSA1 application, or TD820N16KOFTIMHPSA1 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-reliability operation under cyclic thermal stress in static switch and crowbar circuits.

Technical Context

This dual-thyristor module implements a fully controlled, two-arm phase-angle switching topology with symmetrical blocking capability (1600 V in both directions) and gate-controlled turn-on only - no self-commutation. Its pressure-contact die attachment eliminates wire bonds and solder fatigue, supporting >10⁶ thermal cycles at ΔTj = 100 K.

The device operates with sinusoidal or rectangular conduction angles (Θ = 30°–180°), delivering up to 1050 A RMS on-state current (ITRMSM) and sustaining 3.0 kV RMS insulation test voltage (1 min) between terminals and baseplate. Thermal design relies on transient ZthJC modeling with seven RC network elements for accurate junction temperature prediction under pulsed loads.

Key Specifications

Pinout & Package

TD820N16KOFTIMHPSA1 is housed in an industrial-standard press-pack module with electrically insulated AlN ceramic baseplate (60 mm × 60 mm footprint) and dual-side cooling capability. Mechanical mounting uses M1 screws (6 Nm torque); electrical terminals use M2 screws (12 Nm torque) with DIN 46244 A 2.8 × 0.8 mm flat contacts. The module contains two independent thyristor arms sharing a common insulated baseplate.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT820N16KOF, TD820N16KOFTIMHPSA1 reduces thermal assembly variability and improves long-term reliability in field-deployed UPS systems; versus TD950N16KOF, it offers tighter cost-performance alignment for 630–800 kW applications without over-spec'ing surge capacity.

Availability

TD820N16KOFTIMHPSA1 is available at Aetrix Electronics and suitable for soft starters, UPS rectifiers, and static switches requiring stable component supply, long-lifecycle support, and traceable sourcing for industrial OEM programs.

Supply support for TD820N16KOFTIMHPSA1 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 sensor solutions for industrial, automotive, and energy markets.

TD820N16KOFTIMHPSA1 belongs to Infineon's high-power thyristor module portfolio designed specifically for ruggedized, medium-voltage industrial power control - emphasizing pressure-contact reliability, double-sided cooling, and integrated safety isolation.

FAQ

What is the maximum allowable junction temperature for TD820N16KOFTIMHPSA1?

The absolute maximum junction temperature (Tvj max) is 135°C, as specified in the Infineon technical information document revision 3.6. This limit applies under all operating conditions including surge events and must be enforced via thermal monitoring or derating curves. Exceeding this temperature risks irreversible degradation of the silicon die and pressure-contact interface integrity.

Does TD820N16KOFTIMHPSA1 require external snubbers in standard AC line applications?

Yes - due to its high critical dv/dt rating (1000 V/µs), TD820N16KOFTIMHPSA1 still requires RC snubbers in inductive load applications (e.g., motor drives) to suppress voltage overshoot during commutation. The snubber values must be calculated based on load inductance, expected di/dt, and the module's tq (250 µs typical) to ensure reliable turn-off without false triggering.

Can TD820N16KOFTIMHPSA1 be used in parallel configurations?

No - this module is not characterized or qualified for paralleling. Its pressure-contact construction and inherent parameter spread (e.g., VTO, tq) prevent balanced current sharing without active current-balancing circuits. For higher current requirements, Infineon recommends using higher-rated single modules like TD950N16KOF instead of paralleling TD820N16KOFTIMHPSA1 units.

What is the creepage distance and why does it matter for this module?

The creepage distance is 19 mm, measured between main terminals and the insulated baseplate. This value ensures compliance with IEC 61800-5-1 for Pollution Degree 2 environments and supports safe operation at 1600 V blocking voltage without surface tracking, especially in humid or dusty industrial enclosures where contamination could otherwise reduce insulation integrity.