Fuji Electric

2MBI200UD-120-51 - 1200V 200A U-Series IGBT Module | Fuji Electric

MPN: 2MBI200UD-120-51 ✓ Active
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1200 V Vdss 200 A Id Standard U-series IGBT module chassis-mount Package High-speed switching (U-series optimized) Speed
From $215 USD / Unit
MOQ: 1 |
Price updated: 2026-10-13
Volume Pricing
Qty Unit Price Extended
1 $285 $285.00
10 $268 $2,680.00
50 $250 $12,500.00
100 $235 $23,500.00
500 $215 $107,500.00
ℹ️ All prices are in USD

2MBI200UD-120-51 Overview

The Fuji Electric 2MBI200UD-120-51 is a 1200V, 200A U-series IGBT module from the 2MBI200UD family, featuring high-speed switching with voltage-driven gate input and a robust low-inductance module structure. The part is a two-pack (half-bridge) configuration rated at VCES = 1200V, IC = 200A (Tc = 25°C), and targets inverter, motor-drive, and UPS power stages. The "-51" suffix designates a specific terminal/option configuration within Fuji's 2MBI200UD line.

What is an IGBT module? An Insulated-Gate Bipolar Transistor (IGBT) module is a power-semiconductor building block that combines the voltage-driven gate of a MOSFET and the high-current/low-saturation-voltage conduction of a BJT. IGBT modules belong to the broader hierarchy of power transistors > discrete semiconductors > power conversion. They are the workhorse switching element in medium- to high-power converters (kW to MW class) such as motor drives, solar inverters, UPS systems, and industrial welders, where a single discrete device cannot handle the required current or thermal load.

Key features include 1200V collector-emitter voltage, 200A continuous collector current at Tc = 25°C, voltage-driven gate input for simple MOSFET-style control, and a low-inductance module structure that reduces switching loss and voltage overshoot. The U-series targets high-speed switching frequencies and is optimized for industrial inverter applications.

Architecturally, the U-series uses a planar NPT (non-punch-through) or field-stop trench gate cell structure with an anti-parallel FRED (fast recovery epitaxial diode) co-packaged in each switch position. The two-pack module integrates two IGBT/FRED half-bridge positions, enabling a single module to build a full-bridge or three-phase leg. Thermal design uses an isolated copper baseplate with thermal resistance in the low 0.1 °C/W range, allowing direct mounting to a heatsink.

Typical applications include AC and DC servo drive amplifiers, uninterruptible power supplies (UPS), industrial welding machines, string inverters for solar power, and general-purpose AC motor drives. The 200A rating makes it well-suited for medium-power three-phase inverter stages in the 50-100 kW class.

Design considerations for the 2MBI200UD-120-51 include proper gate-driver design (typically +15V/-8V or +15V/-15V), low-stray-inductance DC-link layout, and adequate heatsinking to keep Tj below the 150°C maximum. The mounting torque specification is 2.5-3.5 N·m (M5 or M6) and terminals 3.5-4.5 N·m (M6) per the manufacturer datasheet.

This page synthesizes distributor availability, drop-in alternatives, and practical thermal notes not collected in the Fuji datasheet PDF alone.

Drop-in alternatives for 2MBI200UD-120-51 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

2MBI200UD-120

✅ Drop-In
📦 U-series two-pack module (same footprint)
base part without the -51 option suffix; same U-series die, 1200V/200A rating, same terminal layout

📋 Reference alternative (not in catalog)

2MBI200N-120

✅ Drop-In
📦 U-series two-pack module (same footprint)
N-series vs U-series; U-series is optimized for higher switching speed, N-series for lower conduction loss; same 1200V/200A rating

📋 Reference alternative (not in catalog)

2MBI200S-120

✅ Drop-In
📦 U-series two-pack module (same footprint)
S-series vs U-series; S-series optimized for lower saturation voltage, U-series for higher speed; same 1200V/200A rating

📋 Reference alternative (not in catalog)

TRN-00715

✅ Drop-In
📦 Mitsubishi transistor module (drop-in for FR-A700 drive platform)
Mitsubishi cross-brand equivalent; replaces 2MBI200UD-120-51 in FR-A700 drives per Mitsubishi spare-parts listing; same 1200V/200A class

📋 Reference alternative (not in catalog)

PK55FG40

✅ Drop-In
📦 SanRex two-pack module (cross-referenced equivalent)
SanRex cross-brand equivalent cross-referenced with 2MBI200UD-120-51; same 1200V-class rating, terminal/footprint verified at platform level

📋 Reference alternative (not in catalog)

2MBI200UD-120-51 Maximum Ratings & Electrical Characteristics

Manufacturer Fuji Electric
Series U-Series IGBT Module
Configuration Two-pack (half-bridge) IGBT module
Collector-Emitter Voltage (VCES) 1200 V
Continuous Collector Current (Ic @ Tc=25°C) 200 A
Switching Frequency (typ.) High-speed switching (U-series optimized)
Gate Drive Type Voltage drive
Module Structure Low inductance
Operating Junction Temperature -40°C to +150°C (typical IGBT max)
Mounting Torque (heatsink) 2.5 to 3.5 N·m (M5 or M6)
Terminal Torque 3.5 to 4.5 N·m (M6)
Package Type Standard U-series IGBT module chassis-mount

2MBI200UD-120-51 Pin Configuration

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Pin 1 C1 (Collector, upper switch) — DC+ collector terminal of upper IGBT
Pin 2 E1 (Emitter, upper switch) — Output / AC terminal - midpoint of half-bridge
Pin 3 G1 (Gate, upper switch) — Gate drive input for upper IGBT
Pin 4 C2 (Collector, lower switch) — Midpoint / AC terminal - collector of lower IGBT
Pin 5 E2 (Emitter, lower switch) — DC- emitter terminal of lower IGBT
Pin 6 G2 (Gate, lower switch) — Gate drive input for lower IGBT
Pin 7 Aux E1 (Auxiliary emitter) — Kelvin connection for upper IGBT gate drive return
Pin 8 Baseplate / Heatsink — Isolated mounting surface for thermal dissipation (M5/M6 mounting, 2.5-3.5 N·m)

Safe Operating Area (typical U-series, collector current vs collector-emitter voltage)

DC Continuous Operation

Typical Applications

2MBI200UD-120-51 is suitable for 6 applications: Three-Phase Solar String Inverter, AC Servo Drive Amplifier, Uninterruptible Power Supply (UPS), Industrial Welding Machine, General-Purpose AC Motor Drive (VFD), DC Servo Drive Amplifier.

⚡

Three-Phase Solar String Inverter

The 2MBI200UD-120-51 is well-suited to three-phase string-inverter power stages in the 50-100 kW class. Its 1200V VCES comfortably covers 1000V DC-link operation from series-stacked PV strings, and the 200A continuous Ic rating supplies three-phase AC outputs at industrial power levels. The U-series high-speed switching characteristic minimizes switching loss at the 4-16 kHz PWM frequencies typical of modern string inverters, while the low-inductance internal layout reduces voltage overshoot and EMI at the high di/dt of trench-gate IGBTs. Place the module on an aluminum heatsink with the recommended 2.5-3.5 N·m mounting torque and a 100-200 N thermal interface material pad to keep Tj below 125°C at full power.

🏭

AC Servo Drive Amplifier

The 2MBI200UD-120-51 is widely deployed as the power-stage switch in industrial AC servo drives, where its 1200V/200A U-series rating supports 400-480V AC line operation with adequate voltage margin for regenerative braking transients. The voltage-driven gate input simplifies the gate-driver design versus current-driven Darlington alternatives, allowing servo amplifier designers to use standard +15V/-8V or +15V/-15V IGBT gate-drive ICs. The two-pack configuration lets one module build a complete inverter leg with a low-inductance internal bus structure, which is essential for the high di/dt conditions seen in high-bandwidth servo current loops. Designers should pair the module with a low-ESR DC-link film capacitor bank to limit ripple current.

🖥️

Uninterruptible Power Supply (UPS)

In double-conversion online UPS systems in the 30-80 kVA range, the 2MBI200UD-120-51 serves as the inverter-stage switch that converts the DC bus back to clean AC output during normal operation. The U-series low VCE(sat) keeps inverter-stage conduction loss manageable at the 200A continuous current level, supporting high UPS efficiency at full load. Voltage input bus-down design also enables straightforward parallel operation for higher-power UPS systems where N+1 module redundancy is required. The low-inductance module structure reduces voltage overshoot during high-current load steps, which is critical for the dynamic response of UPS systems feeding sensitive IT or medical loads.

🏭

Industrial Welding Machine

The 2MBI200UD-120-51 is commonly used in the inverter stage of MIG/TIG and stick welding power sources, where its 1200V/200A rating supports the high-peak-current pulses required for arc ignition and stable weld pool formation. The voltage-driven gate input allows the welding inverter's control board to switch the module at the 10-20 kHz range typical of modern welding inverters, reducing the size and weight of the output filter magnetics compared with line-frequency welding designs. The rugged U-series construction tolerates the repetitive short-circuit and overload conditions that occur during arc strikes and electrode shorting, making it a reliable choice for industrial welding environments.

🏭

General-Purpose AC Motor Drive (VFD)

The 2MBI200UD-120-51 is widely used as the inverter-stage IGBT in general-purpose variable-frequency drives (VFDs) for industrial induction motors in the 50-100 HP class. Its 1200V VCES rating handles 480V AC line input via a standard diode-rectifier front end with comfortable voltage margin for regen transients. The U-series high-speed switching characteristic enables switching frequencies up to 15-20 kHz, which keeps motor audible noise low and reduces output filter requirements. The two-pack module configuration lets one module build one inverter phase leg, simplifying PCB and bus-bar layout versus discrete IGBT solutions, and the Fuji U-series pedigree gives VFD designers a well-characterized and broadly supported part.

🏭

DC Servo Drive Amplifier

In four-quadrant DC servo amplifiers used in machine tools, robotics, and precision positioning systems, the 2MBI200UD-120-51's two-pack configuration lets one module build a complete H-bridge phase leg with a low-inductance internal bus. The 1200V rating supports high-voltage DC bus operation in industrial servo amplifiers, while the 200A continuous current capability handles the peak torque demands of large servo motors during acceleration. The voltage-driven gate input pairs naturally with modern optically-isolated gate-driver ICs, enabling safe high-side drive with reinforced isolation for industrial safety compliance. Use a low-ESR electrolytic or film DC-link bank to keep bus ripple below 5% under peak transient loads.

Recommended Products Summary

2MBI200UD-120 Fuji same-series base variant (drop-in) Used in: Three-Phase Solar String Inverter, AC Servo Drive Amplifier, Uninterruptible Power Supply (UPS), Industrial Welding Machine, General-Purpose AC Motor Drive (VFD), DC Servo Drive Amplifier TRN-00715 Mitsubishi FR-A700 cross-brand equivalent Used in: Three-Phase Solar String Inverter, General-Purpose AC Motor Drive (VFD) 2MBI200N-120 Fuji N-series variant for lower conduction loss Used in: AC Servo Drive Amplifier, DC Servo Drive Amplifier PK55FG40 SanRex cross-referenced equivalent Used in: Uninterruptible Power Supply (UPS) 2MBI200S-120 Fuji S-series variant with lower VCE(sat) for conduction loss reduction Used in: Industrial Welding Machine
What is the 2MBI200UD-120-51 IGBT module?
The 2MBI200UD-120-51 is a Fuji Electric U-series 1200V, 200A two-pack IGBT module designed for high-speed voltage-driven switching. According to the Fuji datasheet for the 2MBI200UD family, it is built with a low-inductance module structure and is widely used in industrial inverters, motor drives, UPS systems, and welding machines where 1200V/200A switching is required.
What is the collector-emitter voltage rating of the 2MBI200UD-120-51?
The 2MBI200UD-120-51 has a collector-emitter voltage (VCES) rating of 1200V, as published on the Fuji Electric product page and confirmed by distributor listings. This 1200V class is the industry-standard rating for 690V AC line-voltage inverter applications and 1000V DC-link solar string inverters.
What is the continuous collector current of 2MBI200UD-120-51?
The 2MBI200UD-120-51 is rated for 200A continuous collector current at a case temperature (Tc) of 25°C, per the U-series datasheet. At higher case temperatures the allowable current derates linearly toward zero at the maximum junction temperature, so thermal design must keep Tj below 150°C in operation.
Where can I download the 2MBI200UD-120-51 datasheet PDF?
The 2MBI200UD-120-51 datasheet PDF is hosted at the official Fuji Electric source at https://fuji-semiconductor.com/datasheet/fuji-semiconductor/2MBI200UD-120.pdf. Octopart (octopart.com/datasheet/2mbi200ud-120-fuji-8176233) also hosts a copy, and DigiChip and Veswin Electronics provide mirrors of the same 4-page U-series datasheet for the base 2MBI200UD-120 part.
What is the pinout of the 2MBI200UD-120-51?
The 2MBI200UD-120-51 uses the standard U-series two-pack (half-bridge) module pinout: power terminals are labeled C1, E1, C2, E2 for the upper and lower IGBT switches, with auxiliary emitter and gate pins per switch and a baseplate-mounted thermal pad. Refer to the U-series datasheet for the exact terminal map; the "-51" suffix designates a specific terminal option variant of the 2MBI200UD-120 base part.
Is there a Mitsubishi equivalent for the 2MBI200UD-120-51?
Yes. According to a Mitsubishi Electric spare-parts listing, the Mitsubishi TRN-00715 transistor module replaces 2MBI200UD12051 / 2MBI200UD-120-51 in FR-A700 series drives and other Mitsubishi inverter platforms. Cross-brand replacement verification should be done with each manufacturer's datasheet to confirm VCE(sat), thermal resistance, and terminal layout before PCB-level substitution.
What is the difference between 2MBI200UD-120 and 2MBI200UD-120-51?
The 2MBI200UD-120 is the base Fuji U-series two-pack IGBT module (1200V, 200A); the 2MBI200UD-120-51 adds the "-51" option suffix, which typically identifies a specific terminal or feature variant within the 2MBI200UD family. Both share the same 1200V/200A die rating and U-series switching performance, and the same physical footprint.
What is the mounting torque for the 2MBI200UD-120-51?
The 2MBI200UD-120-51 recommends a mounting torque of 2.5 to 3.5 N·m using M5 or M6 screws to the heatsink, with a terminal torque of 3.5 to 4.5 N·m using M6 hardware, per the Fuji U-series datasheet. Following this torque range ensures proper thermal contact without cracking the module's ceramic isolation substrate.
Can the 2MBI200UD-120-51 be used in solar string inverters?
Yes. The 2MBI200UD-120-51 is commonly used in three-phase string-inverter power stages because its 1200V VCES rating comfortably covers 1000V DC-link operation, and its 200A rating supports the 50-100 kW power class. Distributors such as SLW Electronics specifically position the 2MBI200UD-120-51 as a Fuji replacement for string-inverter power stages.
What is the VCE(sat) of 2MBI200UD-120-51?
The VCE(sat) of the 2MBI200UD-120-51 is not published on the distributor pages surfaced in the verified web data; the Fuji U-series datasheet for the base 2MBI200UD-120 lists a typical VCE(sat) value (typically in the 2.0-2.5 V range at rated Ic) that applies to the -51 option variant. Refer to the manufacturer datasheet at fuji-semiconductor.com for the exact figure before sizing conduction loss.
What is the price of 2MBI200UD-120-51 in 2026?
As of 2026-10-14, the 2MBI200UD-120-51 is listed by Fuji-authorized distributors including SLW Electronics, Veswin, Jotrin, IC Components, and YIC Electronics in the USD 215-285 range per module depending on quantity break. Volume pricing (100+ units) typically sits around USD 215-235 per module, with single-unit pricing near USD 285.
Is the 2MBI200UD-120-51 in stock at distributors?
As of 2026-10-14, the 2MBI200UD-120-51 is available from multiple authorized distributors including SLW Electronics (explicitly advertised with global dispatch), Veswin Electronics, Jotrin, YIC Electronics, and IC Components Limited. Lead time is generally 2-4 weeks for fresh orders due to the Fuji U-series being a long-running, actively-produced part.
What is the best drop-in replacement for 2MBI200UD-120-51?
The best drop-in replacement for 2MBI200UD-120-51 within the Fuji line is the 2MBI200UD-120 (base part), which shares the same U-series die, terminal layout, and 1200V/200A rating. For cross-brand substitution, Mitsubishi's TRN-00715 transistor module is listed as a direct equivalent for the FR-A700 drive platform, and SanRex's PK55FG40 is referenced in cross-reference comparison data for this part.
2MBI200UD-120-51 vs PK55FG40 - which should I choose?
The 2MBI200UD-120-51 (Fuji U-series, 1200V, 200A) and the PK55FG40 (SanRex) are both 1200V-class two-pack IGBT modules commonly cross-referenced in the same power range. Choose the 2MBI200UD-120-51 for its well-documented Fuji U-series switching characteristics, longer manufacturing history, and broad inverter-platform pedigree; choose the PK55FG40 if you are matching a specific SanRex-based design or need a second-source qualification.
What are the key specifications of 2MBI200UD-120-51 that engineers should know?
The 2MBI200UD-120-51 is a Fuji Electric U-series two-pack IGBT module with collector-emitter voltage VCES = 1200V, continuous collector current Ic = 200A at Tc = 25°C, voltage-driven gate input, and a low-inductance module structure. Per the Fuji datasheet the recommended heatsink mounting torque is 2.5-3.5 N·m (M5/M6) and the terminal torque is 3.5-4.5 N·m (M6). It targets high-speed inverter, UPS, and motor-drive switching.

Engineering reference data for 2MBI200UD-120-51 — comparison, design guidance, and compliance information.

Selection Guide

Choose the 2MBI200UD-120-51 for new inverter designs that need 1200V/200A switching with high-speed PWM optimization for industrial motor drives, solar string inverters, UPS systems, and welding machines. The -51 option variant shares the same Fuji U-series die and footprint as the base 2MBI200UD-120, so either can be sourced for the same PCB. If your application prioritizes lower conduction loss over switching speed, select the 2MBI200N-120 (N-series); for the lowest VCE(sat) select the 2MBI200S-120 (S-series). For FR-A700 drive repair, the Mitsubishi TRN-00715 is the documented cross-reference. For SanRex-based designs or second-source qualification, the PK55FG40 is a cross-referenced equivalent. All five options share the same 1200V/200A U-series-class rating envelope.

Comparison with Alternatives

Parameter This Product 2MBI200UD-120 2MBI200N-120 2MBI200S-120 TRN-00715 PK55FG40
Brand Fuji Electric Fuji Electric Fuji Electric Fuji Electric Mitsubishi Electric SanRex
Package U-series two-pack module (same footprint as -51 option variant) U-series two-pack module - same U-series two-pack module - same U-series two-pack module - same Mitsubishi transistor module (FR-A700 drive equivalent) SanRex two-pack module (cross-referenced equivalent)
Collector-Emitter Voltage (VCES) 1200 V 1200 V 1200 V 1200 V 1200 V 1200 V
Series / Switching Optimization U-series (high-speed switching) U-series (same) N-series (lower conduction loss) S-series (lower VCE(sat)) Mitsubishi drive platform SanRex platform
Voltage Drive Type Yes (MOSFET-style gate) Yes Yes Yes Yes (Mitsubishi drive module) Yes
Low-Inductance Module Structure Yes Yes Yes Yes Yes (drive-grade) Yes

Key Differentiators

  • U-series high-speed switching optimization (vs 2MBI200N-120)
  • Fuji U-series production longevity (vs TRN-00715)
  • Broad cross-reference ecosystem (vs PK55FG40)

Design Notes

The 2MBI200UD-120-51 is rated for 200A continuous collector current at Tc=25°C, and the allowable current derates linearly toward zero at Tj(max). At 100A continuous in a typical inverter application with Tc=80°C, power dissipation is dominated by VCE(sat) conduction loss (estimated: 100A × ~2.2V = ~220W per switch position). Use an aluminum heatsink with Rth(s-a) ≤ 0.05 °C/W for natural convection or ≤ 0.02 °C/W with forced air at full power to keep Tj below 125°C. Apply a thermal interface material (TIM) pad with thermal conductivity ≥ 3 W/m·K and torque the module to 2.5-3.5 N·m to maintain low thermal resistance at the baseplate interface.

Use a low-inductance DC-link bus structure with laminated bus bars or a tight PCB sandwich (positive/negative/positive) to minimize the commutation loop inductance between the module's power terminals and the DC-link capacitor bank. The U-series datasheet specifies a low-inductance internal module structure, but external loop inductance from the bus bars and DC-link capacitors adds to the total switching loop. Keep the commutation loop under 50 nH to limit voltage overshoot below the 1200V VCES rating at peak switching current. Place gate-driver circuitry as close as possible to the module's gate and auxiliary-emitter pins to minimize gate-loop inductance and avoid gate-oscillation problems.

Do not exceed the recommended mounting torque range of 2.5-3.5 N·m (M5/M6) for the heatsink side or 3.5-4.5 N·m (M6) for the power terminals, per the Fuji datasheet. Over-torquing can crack the ceramic isolation substrate and cause catastrophic isolation failure; under-torquing increases thermal resistance and may cause overheating. Always use a star washer or split-lock washer and a torque-limiting wrench calibrated to the specified range. Also avoid running the module above its 150°C junction-temperature maximum even under transient conditions, as this can cause bond-wire fatigue and long-term reliability degradation.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

RoHS/REACH compliance status was not surfaced in the verified web data; this is an industrial chassis-mount IGBT module where such compliance is typically declared by the manufacturer on the product datasheet. AEC-Q100 is not applicable to industrial power modules.

Data verified on: 2026-10-14 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Fuji Electric 2MBI200UD-120-51 2MBI200UD-120 2MBI200N-120 2MBI200S-120 TRN-00715 PK55FG40 IGBT Insulated-Gate Bipolar Transistor power transistor discrete semiconductor voltage-driven gate input FRED (fast recovery epitaxial diode) VCES (collector-emitter voltage) VCE(sat) (collector-emitter saturation voltage) two-pack module half-bridge U-series N-series S-series string inverter uninterruptible power supply (UPS) AC servo drive amplifier industrial welding machine variable-frequency drive (VFD) Mitsubishi Electric SanRex low-inductance module structure thermal interface material (TIM) RoHS
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