40T120 IGBT Power Card
High-Voltage Switching | Robust Performance | Industrial Reliability
The 40T120 IGBT Card is a heavy-duty power-stage module built around 40A, 1200V insulated-gate bipolar transistors (IGBTs). Engineered for inverter-based welding machines, UPS systems, motor drives, and high-power converters, this card delivers efficient, low-loss switching and precise gate control under demanding load conditions.
🔧 Key Features:
-
⚡ 40T120 IGBTs – Two or four matched 40 A/1200 V IGBTs in half-bridge or full-bridge configuration for versatile power topologies
-
🌡️ Low Thermal Resistance – Thick copper PCB traces and integrated heatsink mounting pads ensure rapid heat dissipation
-
🔒 Integrated Gate Drivers – Onboard driver circuits with under-voltage lockout and adjustable dead-time for clean, efficient switching
-
🛡️ Protection Mechanisms – Built-in overcurrent detection, overvoltage protection, and thermal shutdown circuitry
-
🔌 Heavy-Duty Connections – Robust screw or bus-bar terminals for DC bus, load, and gate wiring
-
🧲 EMI Mitigation – Snubber networks and input/output filter components reduce electromagnetic interference
📊 Technical Specifications (Typical):
| Parameter | Details |
|---|---|
| IGBT Device | 40T120 (1200 V, 40 A) |
| Configuration | Half-bridge (2 devices) or full-bridge (4 devices) |
| Max Collector–Emitter Voltage | 1200 V |
| Max Continuous Collector Current | 40 A |
| R<sub>DS(on)</sub> at V<sub>GS</sub>=15 V | ≤ 0.25 Ω |
| Gate Drive Voltage | ±15 V |
| Switching Frequency | Up to 25 kHz |
| PCB Size | ~100 mm × 80 mm |
| Cooling | External heatsink mounting |
| Protections | OCP, OVP, thermal shutdown |
🛠️ Applications:
-
Inverter-based ARC, MIG, and TIG welding machines
-
Uninterruptible power supplies (UPS)
-
Variable-frequency motor drives
-
Renewable-energy inverters (solar, wind)
-
High-power switch-mode power supplies
40T120 IGBT Card
Precision switching and rugged reliability for your most demanding power-conversion needs.
