Infineon Technologies DD104N14KHPSA1

Overview

DD104N14KHPSA1 from Semikron is a press-pack dual-diode rectifier module rated for 1400 V repetitive peak reverse voltage (VRRM), 104 A average on-state current (IFAVM) at TC = 100°C, and 160 A RMS on-state current (IFRMSM), designed for high-power industrial AC/DC conversion in six-pulse bridge (B6) and two-pulse bridge (B2) configurations.

For engineers reviewing the DD104N14KHPSA1 datasheet, DD104N14KHPSA1 pinout, DD104N14KHPSA1 application, or DD104N14KHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.185 °C/W per module), surge current rating (2900 A, 10 ms), forward voltage drop (1.4 V max at 300 A, Tvj max), and pressure-contact Si pellet construction with AlN isolation.

Technical Context

This dual-diode module implements a single-phase, center-tapped or full-bridge rectification topology using two independent silicon diode arms housed in a common press-pack package. Each arm supports bidirectional heat flow and shares a common heatsink interface with defined mounting torque (4 Nm for M1 mechanical, 4 Nm for M2 electrical terminals).

Thermal performance is characterized by transient junction-to-case impedance (ZthJC) modeled via seven RC network elements, with DC RthJC of 0.185 °C/W per module and 0.370 °C/W per arm. Electrical behavior includes 0.7 V threshold voltage (V(TO)) and 2.1 mΩ slope resistance (rT) at maximum junction temperature.

Key Specifications

Pinout & Package

DD104N14KHPSA1 uses a press-pack module package with two isolated diode arms sharing a common metal baseplate. Mechanical and electrical terminals are designated M1 (mechanical mounting) and M2 (electrical connection), each requiring 4 Nm torque (±15% and ±10% tolerance respectively). Internal Si pellets use pressure-contact construction with aluminum nitride (AlN) insulation. Weight: 160 g. Creepage distance: 15 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DD104N14KHPSA1, the DD104N16KHPSA1 offers higher voltage margin at minor thermal cost, while the DD90N14KHPSA1 trades 14 A average current for lower cost and identical layout-enabling direct PCB or heatsink reuse in derated systems.

Availability

DD104N14KHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, welding equipment, and renewable energy inverters requiring stable component supply across multi-year production cycles.

Supply support for DD104N14KHPSA1 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 manufacturer specializing in power semiconductor modules, drivers, and integrated solutions for industrial, energy, and transportation applications since 1951.

This part belongs to Semikron's DD-series press-pack rectifier modules, engineered for high-reliability, high-current AC/DC conversion in harsh thermal and mechanical environments where wire-bonded alternatives face fatigue limitations.

FAQ

What is the maximum junction temperature and how is it enforced?

The maximum junction temperature (Tvj max) is 150°C, verified under worst-case conditions including 104 A IFAVM at TC = 100°C, 1400 V VRRM, and 1.4 V forward voltage. Thermal design must maintain case temperature ≤100°C using heatsinks with RthCH ≤0.05 °C/W per module and ambient ≤45°C under forced air cooling.

Does DD104N14KHPSA1 support paralleling of diode arms?

Yes-both arms share identical electrical and thermal characteristics (RthJC, vF, IFSM), enabling current sharing without external ballasting resistors. Successful paralleling requires symmetrical PCB layout, matched heatsink contact pressure, and identical thermal interface material application to both arms' baseplates.

What is the insulation test voltage and duration?

The insulation test voltage is 3.0 kV RMS for 1 second and 2.5 kV RMS for 1 minute, applied between terminals and baseplate. These values confirm compliance with IEC 60747-9 for reinforced isolation in industrial equipment operating at up to 690 VAC mains voltage.

How is surge current rating affected by junction temperature?

At Tvj = Tvj max (150°C), the non-repetitive surge current drops to 2500 A (10 ms), down from 2900 A at Tvj = 25°C. This 14% reduction reflects increased carrier lifetime and reduced thermal margin; system fusing must account for this derating in high-ambient-temperature deployments.