Infineon Technologies DD89N14KKHPSA1

Overview

DD89N14KKHPSA1 from Semikron is a press-pack dual-diode rectifier module rated for 1400 V repetitive peak reverse voltage (VRRM), 89 A average on-state current (IFAVM) per arm at TC = 100°C, and 140 A RMS on-state current (IFRMSM), designed for industrial AC/DC conversion in high-power B2/B6 bridge configurations.

For engineers reviewing the DD89N14KKHPSA1 datasheet, DD89N14KKHPSA1 pinout, DD89N14KKHPSA1 application, or DD89N14KKHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.215 °C/W per arm), maximum junction temperature (150 °C), on-state voltage (1.5 V at 300 A), surge current capability (2.8 kA), and pressure-contact Si pellet construction with AlN isolation.

Technical Context

This dual-arm diode module implements a symmetrical, isolated press-pack structure with two independent silicon pellets mounted on an AlN ceramic substrate, enabling bidirectional thermal path control and high-reliability operation in forced-air or natural convection heatsink systems (e.g., KM14). Each arm supports full-wave rectification in B2 or B6 topologies.

Thermal performance is defined by transient junction-to-case impedance (ZthJC) with analytical R-τ elements, and case-to-heatsink resistance (RthCH ≤ 0.10 °C/W per arm). Electrical behavior includes soft recovery characteristics confirmed by Qr vs. -di/dt curves and threshold voltage (V(TO) = 0.75 V) with slope resistance (rT = 2.3 mΩ).

Key Specifications

Pinout & Package

DD89N14KKHPSA1 is housed in a press-pack module with two electrically isolated arms, each featuring separate anode and cathode terminals. Mechanical mounting uses M1 screws (4 Nm torque ±15%) and electrical connections via M2 terminals (4 Nm ±10%). Internal isolation is provided by aluminum nitride (AlN) ceramic.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-power rectifier module applications.

Compared with DD89N14KKHPSA1, DD89N16KKHPSA1 trades no performance loss for higher voltage headroom, while DD105N14KHPSA1 increases current capability at the cost of marginally reduced thermal efficiency-both retain identical mounting, isolation, and recovery behavior.

Availability

DD89N14KKHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, medium-voltage UPS systems, renewable energy converters, and DC traction power supplies requiring stable component supply across multi-year production cycles.

Supply support for DD89N14KKHPSA1 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

Semikron is a German power semiconductor manufacturer specializing in high-reliability modules for industrial, energy, and transportation applications since 1951.

This part belongs to the DD89N series of press-pack rectifier modules engineered for high-current, high-voltage AC/DC conversion in mission-critical infrastructure where thermal robustness and long-term stability are mandatory.

FAQ

What is the maximum allowable case temperature for continuous operation?

The maximum case temperature (TC) is not independently specified; instead, the device is rated for continuous operation at TC = 100°C with IFAVM = 89 A per arm. At lower case temperatures, current can be increased per the TC = f(IFAVM) curve on page 6 of the datasheet, up to a maximum junction temperature (Tvj max) of 150°C.

Does DD89N14KKHPSA1 require thermal paste between module and heatsink?

No thermal paste is required. The module uses a pressure-contact interface with flat, polished copper baseplates. Thermal interface is achieved solely through uniform mechanical clamping (M1 screws at 4 Nm ±15%), and RthCH is specified assuming direct metal-to-metal contact with surface roughness <1.6 µm Ra.

Can this module be used in parallel configurations?

Yes-its matched dual-arm design and low slope resistance (rT = 2.3 mΩ) support current sharing when paralleled with identical units. However, external balancing inductors (≥1 µH per arm) and matched busbar lengths are required to ensure equal dynamic current distribution during transients.

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

The creepage distance is 15 mm, measured across the AlN ceramic isolation barrier between terminals. This value ensures safe operation at 1400 V reverse voltage in pollution degree 2 environments (IEC 60664-1), preventing surface tracking failure under humid or dusty conditions in industrial enclosures.