Infineon Technologies DD89N14KHPSA1

Overview

DD89N14KHPSA1 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). It features silicon die with AlN internal insulation, designed for high-reliability industrial AC/DC conversion in medium-power motor drives and UPS systems.

For engineers reviewing the DD89N14KHPSA1 datasheet, DD89N14KHPSA1 pinout, DD89N14KHPSA1 application, or DD89N14KHPSA1 equivalent, key selection criteria include its 0.215 °C/W junction-to-case thermal resistance (per module, DC), 1.5 V max forward voltage at 300 A and Tvj max, and pressure-contact construction enabling field-replaceable mounting without soldering.

Technical Context

This dual-arm rectifier module implements a bipolar silicon diode configuration with isolated arms in a single press-pack housing. Each arm supports independent conduction paths with shared case thermal interface, enabling B2 (two-pulse) and B6 (six-pulse) bridge topologies.

Thermal performance is defined by transient junction-to-case impedance (ZthJC) with analytical R–τ elements, and case-to-heatsink resistance (RthCH) of 0.05 °C/W per module under specified mounting torque (4 Nm for M1 mechanical, 4 Nm for M2 electrical terminals).

Key Specifications

Pinout & Package

DD89N14KHPSA1 uses a press-pack dual-diode module package with two isolated anode-cathode arms housed in a single insulated metal baseplate. Mounting employs M1 (mechanical) and M2 (electrical) threaded terminals with specified torque (4 Nm ±15% and ±10%, respectively). Internal isolation uses aluminum nitride (AlN) ceramic.

Key Features

Applications

Availability

DD89N14KHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, welding equipment, and renewable energy inverters requiring stable component supply and long-term lifecycle support.

Supply support for DD89N14KHPSA1 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-power modules, IGBTs, diodes, and integrated solutions for industrial, energy, and traction applications.

The DD89N series belongs to Semikron's press-pack rectifier module product line, engineered for high-current, high-voltage AC/DC conversion in mission-critical industrial systems where reliability and thermal robustness are paramount.

FAQ

What is the maximum junction temperature and how does it affect thermal design?

The DD89N14KHPSA1 has a maximum junction temperature (Tvj max) of 150 °C. This allows full-rated current operation at higher ambient temperatures than standard 125 °C devices, reducing heatsink size and fan requirements in enclosed industrial cabinets. Thermal design must use the specified 0.215 °C/W RthJC (DC) and 0.05 °C/W RthCH values with verified mounting torque to avoid exceeding this limit.

Is DD89N14KHPSA1 pin-compatible with other DD89N variants?

No - DD89N14KHPSA1 is not pin-compatible with lower-voltage variants like DD89N12K or DD89N16K due to differences in internal die layout and voltage-class-specific insulation structures. While all share the same press-pack mechanical footprint and terminal positions, the 1400 V VRRM rating corresponds to specific AlN barrier thickness and creepage distance (15 mm), requiring validation of PCB layout and heatsink clearance.

Does this module support reverse conduction or bidirectional operation?

No - DD89N14KHPSA1 is a unidirectional rectifier module containing two standard PN-junction diodes. Each arm conducts only from anode to cathode; no reverse conduction capability is provided. It is not suitable for synchronous rectification or bidirectional power flow without external switching devices such as IGBTs or MOSFETs.

What mounting hardware and torque specifications apply to DD89N14KHPSA1?

DD89N14KHPSA1 requires M1 (mechanical mounting) and M2 (electrical terminal) screws tightened to 4 Nm ±15% and 4 Nm ±10%, respectively. The baseplate must be mounted to a flat, clean, thermally conductive heatsink using conductive thermal paste or phase-change material. Uneven torque or surface contamination increases RthCH beyond the rated 0.05 °C/W, risking thermal runaway.