Infineon Technologies DD82S04KHPSA1

Overview

DD82S04KHPSA1 from Eupec (now Infineon Technologies) is a 800 V, 150 A RMS dual common-cathode thyristor module designed for phase-controlled rectification in industrial AC-DC conversion systems. It features 1.55 V forward voltage at 300 A and 150 °C junction temperature, 0.47 °C/W thermal resistance per arm, and 2300 A non-repetitive surge current capability for motor drive line-commutated inverters.

For engineers reviewing the DD82S04KHPSA1 datasheet, DD82S04KHPSA1 pinout, DD82S04KHPSA1 application, or DD82S04KHPSA1 equivalent, key selection criteria include repetitive peak reverse voltage (VRRM = 800 V), average forward current at TC = 88°C (96 A), transient thermal impedance ZthJC, gate trigger characteristics, and isolation test voltage (2.5 kV RMS).

Technical Context

This device implements a dual-arm, common-cathode thyristor configuration optimized for half-wave or full-wave controlled rectifier topologies. Each arm supports 800 V blocking and handles up to 150 A RMS forward conduction with matched dynamic recovery behavior (Qr = 25 µAs at IFM = 120 A, -diF/dt = 100 A/µs).

Thermal design relies on its low RthJC of 0.47 °C/W per arm and RthCK of 0.16 °C/W per arm, enabling high-power operation when mounted on water-cooled heatsinks. The 2.5 kV isolation rating ensures safe operation in grounded-line industrial mains interfaces.

Key Specifications

Pinout & Package

DD82S04KHPSA1 is housed in a press-pack-style isolated double-sided cooling module with baseplate isolation. Terminals are arranged for dual common-cathode configuration: two anodes (A1, A2), one shared cathode (K), and two independent gate terminals (G1, G2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TT825N08KOF and CM800HA-28H, DD82S04KHPSA1 offers integrated dual-arm common-cathode topology with proven line-commutated reliability, lower gate drive overhead, and optimized thermal path for legacy industrial rectifier designs.

Availability

DD82S04KHPSA1 is available at Aetrix Electronics and suitable for industrial motor drives, DC traction power supplies, and medium-voltage UPS systems requiring stable component supply and long-term obsolescence management.

Supply support for DD82S04KHPSA1 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

Eupec GmbH + Co. KG was a European power semiconductor specialist acquired by Infineon Technologies in 2000; it pioneered high-power thyristor and IGBT modules for industrial automation and energy infrastructure.

DD82S04KHPSA1 belongs to Eupec's DD-series press-pack thyristor modules, engineered specifically for ruggedized, high-efficiency line-commutated rectification in heavy-duty industrial power conversion.

FAQ

What is the gate trigger voltage and current requirement for DD82S04KHPSA1?

The gate trigger voltage is typically 1.5 V at 25°C with a peak gate current of 2 A. Minimum gate trigger current is 150 mA at 25°C, rising to 250 mA at 125°C junction temperature. Gate pulse width must exceed 20 µs to ensure reliable turn-on under worst-case dv/dt conditions.

Can DD82S04KHPSA1 be used in parallel configurations?

Yes, but only with active current balancing-such as series gate resistors and matched gate drive timing-and strict thermal coupling. The device's matched Qr (25 µAs) and identical RthJC support parallel operation up to four units when mounted on a common heatsink with uniform clamping force and thermal interface material.

What is the maximum recommended case temperature for continuous operation?

The maximum continuous case temperature is 88°C for 96 A average forward current per arm. At 100°C case temperature, derating to 81 A is required. Exceeding 88°C without corresponding current reduction risks accelerated aging and reduced surge current capability due to increased junction temperature.

Does DD82S04KHPSA1 require snubber circuits?

Snubbers are recommended for inductive loads with high di/dt (>100 A/µs) or when operating near VRRM limits. A typical RC snubber (100 Ω, 0.1 µF) across each anode–cathode pair suppresses voltage overshoot during commutation and prevents false triggering from dv/dt-induced gate currents.