Semikron SKM400GB125D

Semikron SKM400GB125D

Overview

The Semikron SKM400GB125D is a high-performance half‑bridge IGBT module rated for 400 A continuous current at 1200 V, built in the rugged SEMITRANS 3 chassis-mount package. Known for its low inductance and high short-circuit capability, this single-unit module is ideal for high-frequency power conversion applications such as resonant inverters, induction heating, welding, and Switched‑Mode Power Supplies (SMPS).

Key Features

• 1200 V voltage rating

• 400 A continuous (at 25 °C), 300 A at 80 °C

• NPT ultrafast IGBT – short tail, self-limiting short-circuit

• Integrated fast & soft inverse CAL diodes

• Low inductance SEMITRANS 3 case with large creepage and clearance

• DBC copper baseplate for efficient thermal management

• M6 screw terminals and 7-pin interface, module weight ~0.325 kg

Technical Specifications

• Part Number: SKM400GB125D

• Topology: Half-Bridge, single-module

• VCES: 1200 V

• IC nominal: 400 A @ 25 °C, 300 A @ 80 °C

• Pulse peak current ICRM = 600 A (1 ms)

• Isolation voltage ≥ 4000 V AC (1 min)

• Junction temperature range: –40 °C to +150 °C

• Thermal Resistance: Rth(j‑c) ≈ 0.05 K/W

• Package Dimensions: 106 × 62 × 31 mm

Applications

• Switched‑Mode Power Supplies (fₛw > 20 kHz)

• Resonant inverters (up to 100 kHz)

• Inductive heating systems

• High-frequency industrial welders

• General-purpose power conversion

Why Choose the SKM400GB125D

• Combines high current and voltage in a compact form

• Ultrafast switching with low inductance for efficiency

• Strong short-circuit resilience, suitable for high-frequency

• Copper baseplate and DBC for excellent thermal performance

• Trusted Semikron quality with robust electrical specs

Order Now

The Semikron SKM400GB125D IGBT half-bridge module is in production and available through authorized distributors worldwide.

Return to the Semikron IGBT Modules collection for more models, ratings, and configurations.

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NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply