Inverter Drive & Servo Control Solution – FUJI 2DI75Z-120 | IGBT Power Module
The FUJI 2DI75Z-120 is a dual IGBT power module rated at 75A / 1200V, engineered by Fuji Electric for demanding industrial power conversion applications. Whether you are designing a variable frequency drive, regenerative servo amplifier, or high-efficiency UPS system, this module delivers the switching performance and thermal reliability that engineers depend on.
Where This Product Is Used
- Variable Frequency Drives (VFD / Inverters): Main switching element in 3-phase AC motor speed control systems, 15–37 kW range.
- AC Servo Amplifiers: Output stage switching in precision motion control for CNC machining centers and robotic arms.
- Regenerative Power Supplies: Bidirectional power flow in energy-recovery elevator drives and crane hoists.
- Industrial UPS Systems: DC-AC inversion stage in online double-conversion UPS for data centers and process plants.
- Welding Inverters: High-frequency switching in IGBT-based MIG/TIG welding power sources.
- Solar Inverters & Energy Storage: DC bus chopper and grid-tie inversion in photovoltaic string inverters.
Technical Specifications
| Part Number | 2DI75Z-120 |
| Manufacturer | Fuji Electric Co., Ltd. |
| Module Type | Dual IGBT (2-in-1 Half-Bridge) |
| Collector Current (IC) | 75 A |
| Collector-Emitter Voltage (VCES) | 1200 V |
| Gate-Emitter Voltage (VGES) | ±20 V |
| Switching Frequency | Up to 20 kHz |
| Package | Z-Series Isolated Base Module |
| Mounting | Screw-mount to heatsink (M5 bolts) |
| Operating Temperature | –40°C to +150°C (Tj) |
| Isolation Voltage | 2500 V AC (1 min) |
| Weight | Approx. 200 g |
Why Engineers Specify This Model
- Z-Series Low-Loss Technology: Fuji Electric’s Z-Series IGBTs feature optimized carrier lifetime control, reducing switching losses by up to 20% vs. previous generations — directly lowering drive heat dissipation.
- Soft-Recovery FWD: Integrated soft-recovery freewheeling diodes minimize voltage spikes and EMI, simplifying gate driver and snubber design.
- High Short-Circuit Withstand: 10 µs short-circuit rated, providing critical protection time for gate driver DESAT circuits in fault conditions.
- Isolated Baseplate: Direct copper bonding (DCB) ceramic substrate eliminates the need for additional insulation pads in most heatsink configurations.
- Drop-in Compatibility: Pin-compatible with 2DI75D-120 and 2DI75M-120 in most PCB layouts, simplifying design revisions and spare-parts management.
Complete System Bill of Materials
For a complete IGBT inverter power stage using the 2DI75Z-120, typical companion components include:
- Gate Driver IC: Fuji EXB841 / EXB840, or Infineon 1ED020I12-F2
- DC Bus Capacitor: 1200 µF / 450 V DC-link film or electrolytic capacitor bank
- NTC Thermistor: Mounted on heatsink for over-temperature protection (10 kΩ @ 25°C)
- Heatsink: Extruded aluminum, Rth ≤ 0.15 °C/W for 75 A continuous operation
- Thermal Interface Material: Bergquist GP3000 or equivalent, 0.1–0.15 mm bond line
- Current Sensor: LEM LA 75-P or equivalent Hall-effect sensor for overcurrent protection
- Snubber Capacitor: 0.1 µF / 1600 V polypropylene film (if bus bar inductance > 50 nH)
Compliance & Industry Standards
- RoHS 2 Compliant (Directive 2011/65/EU) — halogen-free packaging
- CE Marking — meets Low Voltage Directive 2014/35/EU
- UL Recognized Component (File E-series, Fuji Electric)
- IEC 60747-9: Discrete semiconductor devices — IGBT
- ISO 9001:2015 — manufactured under Fuji Electric’s certified quality management system
Quality Assurance & Sourcing
At Konmask.com, every FUJI 2DI75Z-120 unit passes our 4-step verification protocol before dispatch:
- Visual Inspection: Laser-engraved markings, date codes, and package integrity checked against Fuji Electric’s official part marking standards.
- Electrical Spot-Test: VCES blocking voltage and gate threshold voltage (VGE(th)) verified with calibrated curve tracer equipment.
- Thermal Imaging: Infrared scan of baseplate confirms void-free solder bond between chip and DCB substrate.
- Traceability Documentation: Each unit ships with a test report, lot number, and country-of-origin certificate upon request.
We source exclusively from Fuji Electric authorized distributors and factory-direct channels. We do not handle grey-market or remarked components.
How to Source This Part
- Add to Cart — select quantity and proceed to checkout directly on this page.
- Request a Quote — for orders of 5+ units, email support@konmask.com for volume pricing and lead-time confirmation.
- Provide Your Application Details — our engineers can verify compatibility with your drive design at no charge.
- Receive Shipping Confirmation — most in-stock orders ship within 1–2 business days via DHL Express, FedEx, or UPS with full tracking.
Application-Specific FAQ
Q: Can the 2DI75Z-120 replace a 2DI75D-120 in my existing drive?
A: In most cases yes — the Z-Series uses the same footprint and terminal layout. Verify gate drive voltage and DESAT threshold compatibility before substitution.
Q: What heatsink thermal resistance is required for continuous 75 A operation?
A: At 75 A and 10 kHz switching, total power dissipation is approximately 150–180 W. A heatsink with Rth(h-a) ≤ 0.15 °C/W with forced-air cooling is recommended to keep Tj below 125°C.
Q: Do you provide a datasheet?
A: Yes. The official Fuji Electric 2DI75Z-120 datasheet is available upon request. Contact support@konmask.com.
Q: Is this module suitable for 690 V AC input drives?
A: No. The 1200 V VCES rating is appropriate for 380–480 V AC input (DC bus ≈ 650–700 V). For 690 V AC input, a 1700 V rated module is required.
Q: What is your return policy for electronic components?
A: Unused, unopened modules in original packaging may be returned within 30 days. Electrically tested or installed units are non-returnable. See our full policy at Konmask.com/policies/refund-policy.
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