Infineon Technologies DD104N12KKHPSA1

Overview

DD104N12KKHPSA1 from Semikron is a press-pack dual-diode rectifier module rated for 1200 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 DD104N12KKHPSA1 datasheet, DD104N12KKHPSA1 pinout, DD104N12KKHPSA1 application, or DD104N12KKHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.185 °C/W per arm), forward voltage drop (1.4 V max at 300 A), surge current capability (2900 A, 10 ms), 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 with isolated arms sharing a common heatsink interface. Each arm supports independent conduction angles (Θ = 60°–180° sin/rect), enabling flexible thermal derating across B2 and B6 topologies.

Thermal performance is defined by transient junction-to-case impedance (ZthJC) with analytical R–τ network parameters and steady-state RthJC of 0.185 °C/W per arm under DC conditions. Internal isolation uses aluminum nitride (AlN), and mechanical mounting requires 4 Nm torque on M1 fasteners.

Key Specifications

Pinout & Package

DD104N12KKHPSA1 is a press-pack dual-diode module housed in a metal-ceramic package with AlN isolation and pressure-contact silicon pellets. It features three main terminals: two anodes (A1, A2) and one common cathode (K), arranged for symmetrical mounting on a heatsink. No solderable leads - electrical connection is via M2 terminal screws (4 Nm torque).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DD104N12KKHPSA1, DD104N16K trades voltage headroom for marginal thermal penalty, while DD132N12K increases current capacity without altering voltage or thermal interface-making it ideal for power-upgrades in existing layouts.

Availability

DD104N12KKHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies (UPS), medium-voltage DC power supplies, and traction rectifier systems requiring stable component supply, long-life thermal cycling, and certified high-voltage isolation.

Supply support for DD104N12KKHPSA1 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 semiconductors and intelligent power modules for industrial, renewable energy, and transportation applications.

This part belongs to Semikron's DD-series press-pack rectifier modules, engineered for high-reliability, high-current AC/DC conversion in harsh environments where solder fatigue and thermal cycling are primary failure mechanisms.

FAQ

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

The maximum junction temperature (Tvj max) is 150°C, strictly limited by internal silicon and AlN material ratings. Operation beyond this point risks irreversible degradation of forward voltage and reverse leakage. Designers must calculate junction temperature using RthJC (0.185 °C/W per arm), measured case temperature, and actual power dissipation-including both conduction loss (I × vF) and switching-related losses if applicable.

Does DD104N12KKHPSA1 support paralleling of arms, and what layout constraints apply?

Yes-its dual-arm structure supports parallel operation of A1 and A2 for increased current capacity, but only if both arms share identical thermal paths and equalizing busbar inductance. Unequal RthCH or asymmetric mounting causes current imbalance; designers must ensure ≤5% difference in thermal resistance to heatsink and ≤10 nH difference in stray inductance per arm to maintain <5% current mismatch at full load.

What is the significance of the "K" and "HPSA1" suffixes in the part number?

"K" denotes the standard version with AlN isolation and M1/M2 screw terminals; "HPSA1" indicates compliance with Semikron's K.Spec A10/91 specification revision, including updated thermal transient models (ZthJC analytical R–τ network), tightened RthCH limits (0.05 °C/W max per module), and extended storage temperature range (-40°C to +150°C). It does not imply packaging or RoHS changes.

Can DD104N12KKHPSA1 be used in single-phase B2 bridge configurations, and what is its rated output current?

Yes-it is explicitly rated for B2 (two-pulse) bridge use. At TA = 45°C with natural cooling on KM14 (50W) heatsink, maximum output current is 250 A; with forced air cooling (Papst 4650), it reaches 300 A. These values assume RthCA ≤ 0.20 °C/W and are derived from the ID vs. RthCA curves on page 7 of the datasheet, not extrapolated from IFAVM.