Infineon Technologies DD500S33HE3BPSA1

Overview

DD500S33HE3BPSA1 from Infineon Technologies is a 3300 V, 500 A rated high-power silicon diode module in IHM-B package, designed as the freewheeling/anti-parallel diode paired with FZ500R33HE3 IGBTs in medium-voltage inverter legs for traction and industrial drives. It delivers low forward voltage (2.75 V typ. at 500 A, 125°C), low switching losses (550 mJ rec. energy typ. at 150°C), and high thermal cycling capability via AlSiC baseplate.

For engineers reviewing the DD500S33HE3BPSA1 datasheet, DD500S33HE3BPSA1 pinout, DD500S33HE3BPSA1 application, or DD500S33HE3BPSA1 equivalent, key selection criteria include repetitive peak reverse voltage (3300 V), continuous DC forward current (500 A), thermal resistance junction-to-case (43.1 K/kW), isolation test voltage (6.0 kV RMS), and gate drive compatibility with 3300 V IGBT half-bridge modules.

Technical Context

This diode module operates as a fast-recovery, high-voltage anti-parallel device in two-level and three-level neutral-point-clamped (NPC) inverters. Its design targets hard-switched applications up to 150°C junction temperature, with specified reverse recovery characteristics (Qr = 450 µC typ., Erec = 550 mJ typ. at 150°C) under controlled di/dt (1500 A/µs) and VGE = −15 V.

The IHM-B housing provides reinforced insulation (CTI > 600, creepage 32.2 mm, clearance 19.1 mm) and 6.0 kV isolation test rating. Thermal performance is optimized via AlSiC baseplate (enhanced thermal cycling endurance) and low stray inductance (18 nH) to minimize voltage overshoot during commutation.

Key Specifications

Pinout & Package

DD500S33HE3BPSA1 is housed in an IHM-B (Insulated Housing Module – B type) package with isolated baseplate, AlSiC substrate, and screw-mount terminals (M4 for power, M6 for mounting). The module contains one diode die per switch position and features dual-terminal layout: anode and cathode pins located on opposite long edges of the baseplate.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DD500S33HE3BPSA1, DD600S33K3_B2 offers higher current capacity at the expense of increased conduction loss and board area, while DD400S33K3_B2 trades 20% current rating for tighter thermal envelope and lower system cost in derated deployments.

Availability

DD500S33HE3BPSA1 is available at Aetrix Electronics and suitable for wind turbine converters, rail traction drives, and medium-voltage UPS systems requiring stable component supply across extended production lifecycles.

Supply support for DD500S33HE3BPSA1 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 AG is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and renewable energy markets.

This part belongs to Infineon's PrimePACK™ family of high-voltage power modules, engineered specifically for ruggedized medium-voltage inverter applications demanding high reliability, low loss, and long thermal cycle life.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The DD500S33HE3BPSA1 is rated for continuous operation up to 150°C junction temperature, as confirmed by its SOA curve and thermal impedance data (ZthJC). Operation beyond this limit risks accelerated degradation of the AlSiC-substrate bond and irreversible increase in VF. Derating is required above 125°C ambient when using standard thermal interface materials.

Can this diode module be used without a matched IGBT module?

Yes, but only in non-synchronous configurations where reverse recovery behavior is not coupled to an actively switched device. In standard inverter legs, it is explicitly designed to pair with the FZ500R33HE3 IGBT module-matching stray inductance, thermal expansion, and gate drive timing to minimize oscillation and cross-conduction risk.

What is the recommended thermal interface material for optimal RthCH performance?

Infineon specifies λgrease = 1 W/(m·K) for RthCH = 16.5 K/kW. Validated pastes include Dow Corning TC-5000 and Henkel Loctite ABLESTIK QMI510, applied at 0.15–0.20 mm thickness. Thicker layers increase RthCH nonlinearly; void-free coverage across the full AlSiC baseplate surface is mandatory to avoid localized hot spots.

Does the module include internal temperature sensing?

No, the DD500S33HE3BPSA1 does not integrate a temperature sensor. System-level thermal monitoring must be implemented externally using either a thermistor mounted on the heatsink near the module baseplate or an IR camera calibrated for AlSiC emissivity (ε ≈ 0.82). The transient thermal impedance curve (ZthJC) enables accurate junction temperature estimation from measured case temperature.