Infineon Technologies DD435N36KHPSA1

Overview

DD435N36KHPSA1 from Infineon Technologies is a press-pack rectifier diode module with dual-arm configuration, rated for 4000 V repetitive peak reverse voltage (VRRM), 435 A average forward current (IFAVM) at TC = 100 °C, and 14.5 kA non-repetitive surge current (IFSM); used in high-power industrial drive rectification where thermal robustness and electrical isolation are critical.

For engineers reviewing the DD435N36KHPSA1 datasheet, DD435N36KHPSA1 pinout, DD435N36KHPSA1 application, or DD435N36KHPSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.078 K/W per module), electrically insulated AlN baseplate, pressure-contact silicon pellet construction, and 1500 g mechanical mass for heatsink integration.

Technical Context

This dual-arm rectifier module employs pressure-contact technology to eliminate wire bonds and solder joints, enabling high reliability under thermal cycling and mechanical stress. Each arm supports independent conduction with identical VTO (0.84 V) and rT (0.6 mΩ) parameters, ensuring balanced current sharing in B2 and B6 bridge configurations.

Thermal performance is defined by two distinct RthJC values: 0.039 K/W per arm (DC, Θ = 180°) and 0.078 K/W per module (DC), reflecting its symmetrical dual-arm layout. The electrically isolated AlN ceramic baseplate provides 3.6 kV RMS insulation test voltage at 50 Hz for 1 second.

Key Specifications

Pinout & Package

DD435N36KHPSA1 uses an industrial-standard press-pack package with electrically insulated AlN baseplate, 60 mm × 60 mm footprint, and dual-arm topology. Terminals are configured as two anodes (A1, A2) and one common cathode (K), with mechanical mounting via four M1 screws and electrical connection via two M2 terminals per arm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DD435N36KHPSA1, DD450N36K offers +15 A current headroom at identical voltage rating, while DD350N40K trades 85 A of current for +500 V blocking margin-enabling direct use in 4.16 kV substations without external snubbers.

Availability

DD435N36KHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, battery charging systems, and renewable energy inverters requiring stable component supply across multi-year production cycles.

Supply support for DD435N36KHPSA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and energy markets.

This part belongs to Infineon's High-Power Diode Module product line, engineered for ruggedized, high-efficiency AC/DC conversion in mission-critical infrastructure where long service life and field reliability are mandatory.

FAQ

What is the mounting torque specification for DD435N36KHPSA1 mechanical and electrical terminals?

The mechanical mounting screws (M1) require 6 Nm ±15% torque to secure the module to the heatsink while maintaining uniform pressure on the AlN baseplate. Electrical terminals (M2) must be tightened to 12 Nm ±10% to ensure low-resistance contact and prevent thermal runaway under 435 A continuous load.

Does DD435N36KHPSA1 support both B2 and B6 rectifier topologies?

Yes, the dual-arm architecture supports both two-pulse (B2) and six-pulse (B6) configurations. In B6 mode, each arm handles one phase pair; in B2 mode, arms operate in parallel to double current capacity while maintaining shared thermal path and isolation integrity.

How does the pressure-contact construction improve reliability versus soldered modules?

Pressure-contact eliminates thermomechanical stress points from solder joints and bond wires, reducing failure modes under thermal cycling. Measured lifetime exceeds 10,000 cycles between −40 °C and +150 °C junction temperature, making it suitable for outdoor and cyclic-load applications like wind turbine converters.

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

The creepage distance is 19 mm between terminals and baseplate. This meets IEC 60664-1 requirements for Pollution Degree 2 environments and ensures safe operation at 4000 V blocking voltage without surface tracking, especially in humid or dusty industrial enclosures.