Infineon DD-Series Diode Modules DD180N16S

Technical Dossier

Product Details And Specifications

Infineon DD-Series Diode Modules Technical Notes

The Infineon DD-Series (also referenced under the IXYS/Eupec legacy catalog) represents one of the most widely deployed families of press-pack and module-format power diode assemblies in global heavy industry. Installations span petrochemical refineries, nuclear auxiliary power systems, offshore platform rectifier banks, steel mill DC drives, and large-scale UPS infrastructure. The DD180N16S specifically is a dual diode module rated at 180 A average forward current and 1600 V repetitive peak reverse voltage (VRRM), housed in a standard 34 mm pitch power module package compatible with industry-standard heatsink interfaces.

The DD-Series occupies the mid-to-high current tier of Infineon's discrete rectifier portfolio, bridging the gap between low-current SMD rectifiers and high-power press-pack stacks. Its standardized footprint has made it a default replacement reference in legacy drive systems originally designed around Eupec and early Siemens semiconductor catalogs.

The Evolution of DD-Series Architecture

The DD-Series traces its lineage to the Eupec GmbH modular diode platform of the late 1980s, which Infineon Technologies absorbed following the Siemens Semiconductor spin-off in 1999. Early variants such as the DD60N and DD100N used aluminum wire bonding on silicon chips mounted to direct copper bonded (DCB) substrates, with silicone gel encapsulation. These early modules were rated to junction temperatures of 125°C and were designed for 50/60 Hz rectifier bridge applications in industrial drives.

Through the 1990s and 2000s, the series expanded current ratings incrementally — DD130N, DD160N, DD180N, DD200N — while maintaining backward-compatible package footprints. The voltage suffix convention (e.g., 14K = 1400 V, 16S = 1600 V, 18 = 1800 V) was standardized across the range, enabling engineers to substitute higher-voltage variants into existing PCB and busbar layouts without mechanical redesign.

By the 2010s, the DD-Series entered a mature/stable lifecycle phase. Infineon's active development focus shifted to the EconoDUAL and PrimePACK platforms for new designs, but the DD-Series remained in production to support the installed base. As of 2026, several lower-current variants are confirmed end-of-life (EOL), making aftermarket sourcing and lifecycle extension support critical for operators of legacy equipment.

DD-Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked members of the Infineon DD-Series diode module family, organized by current rating tier:

DD60N14K: Dual diode module, 60 A / 1400 V, standard flat-base package, rectifier bridge use.
DD60N16K: Dual diode module, 60 A / 1600 V, increased VRRM for higher-line voltage systems.
DD100N14K: Dual diode module, 100 A / 1400 V, mid-current rectifier for industrial drives.
DD100N16K: Dual diode module, 100 A / 1600 V, common in 690 V AC input rectifier stages.
DD130N14K: Dual diode module, 130 A / 1400 V, used in medium-power DC bus rectifiers.
DD130N16K: Dual diode module, 130 A / 1600 V, drop-in upgrade path from DD100N16K.
DD160N14K: Dual diode module, 160 A / 1400 V, high-current rectifier for crane and hoist drives.
DD160N16K: Dual diode module, 160 A / 1600 V, standard in offshore and marine drive systems.
DD180N14K: Dual diode module, 180 A / 1400 V, heavy industrial rectifier, steel mill applications.
DD180N16S: Dual diode module, 180 A / 1600 V, screw-terminal variant, primary SKU for this listing — widely used in Siemens SIMOREG and ABB DCS800 rectifier assemblies.
DD200N14K: Dual diode module, 200 A / 1400 V, upper-range current for large UPS rectifier banks.
DD200N16K: Dual diode module, 200 A / 1600 V, high-current / high-voltage, nuclear auxiliary power use.
DD250N14K: Dual diode module, 250 A / 1400 V, press-fit compatible, large rectifier stack assemblies.
DD250N16K: Dual diode module, 250 A / 1600 V, maximum current standard module, refinery DC systems.
DD300N14K: Dual diode module, 300 A / 1400 V, high-power variant, typically used in parallel rectifier configurations.
DD300N16K: Dual diode module, 300 A / 1600 V, top-tier current rating in the standard DD package format.

Sourcing Hard-to-Find & Obsolete DD-Series Parts

For customers requiring ongoing lifecycle support contracts — covering scheduled preventive replacement of rectifier modules across a fleet of drives — DriveKNMS offers annual supply agreements with price-lock provisions.

Quality Control for the DD-Series Range

All DD-Series modules are dispatched in anti-static packaging with desiccant, and thermal interface material (TIM) recommendations are included with each shipment to ensure correct installation torque and contact resistance on the heatsink interface.