Fuji Electric 2RI100E-080 Power Diode Rectifier Module
This device is an industrial Fuji Electric 2RI100E-080 power diode module.
Manufactured in Japan, this high capacity solid state semiconductor component contains two series connected rectifier diodes configured as a half bridge branch. It is engineered for industrial power electronics applications, working within automation parts ensembles, heavy protective circuits, and control panels to handle high power AC to DC rectification cycles with low thermal losses.
Key Features
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Dual Diode Series Configuration: Internally integrated with two high current silicon rectifier diodes wired in a half bridge (series) matrix. This dual element layout allows a pair of these modules to be coupled together to build a complete, highly compact single phase full wave bridge rectifier block.
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Heavy Duty Bolt On Power Terminals: Designed with three robust, top facing machined metallic terminal tabs (labeled 1, 2, and 3 corresponding to circuit nodes) equipped with deep internal threads. These solid connection blocks ensure gas tight, low resistance wiring interfaces that tolerate continuous high thermal expansion cycles without stripping.
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Electrically Isolated Copper Baseplate: Constructed with the internal semiconductor dies pre bonded to an isolated ceramic layer backed by a thick copper baseplate. This allows technicians to bolt the module directly onto a common aluminum heatsink chassis alongside other components without causing a short circuit.
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Molded Flame Retardant Shell Casing: Enclosed in a premium, high impact industrial polymer housing block. The structural frame isolates high voltage paths from external tools, and features a printed front facing schematic label for quick wiring verification during field assembly.
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High Surge Current Capacity: Specially designed to handle high intermittent forward surge currents (IFSM), allowing the module to withstand sudden downstream inductive motor start up rushes or short term line faults without punch through failure.
Technical Specifications
| Feature | Specification Details |
| Brand / Manufacturer | Fuji Electric Co., Ltd. |
| Part / Catalog Number | 2RI100E-080 |
| Manufacturing Batch Code | 9403 |
| Device Classification | Power Diode Rectifier Module / Semiconductor |
| Average Forward Current (IF) | 100 Amps continuous duty load |
| Repetitive Peak Reverse Voltage (VRRM) | 800 Volts maximum isolation threshold |
| Internal Configuration Matrix | 2 Diodes in Series Connection (Half Bridge Network) |
| Terminal Node Designation | Node 1: AC Input (sim), Node 2: DC Positive (+), Node 3: DC Negative (-) |
| Manufacturing Origin | Made in Japan |
| Mounting Hardware Layout | Dual end side clearance holes for secure chassis bolting |
Applications
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Industrial AC to DC Converters: Configured inside three phase and single phase diode bridge rectifiers to supply heavy duty DC current to manufacturing systems.
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Variable Frequency Drives (VFDs): Acts as the primary front end rectifier module inside commercial VFDs, converting incoming AC line utility power into stable DC bus voltage for inverter circuits.
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DC Motor Control Drives: Integrated into large motor speed controllers to deliver smooth, high amperage direct current to heavy duty industrial DC conveyor and crane motors.
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High Power Welding Power Supplies: Utilized in commercial electric arc welding stations to rectify raw high frequency AC power into steady DC current arcs for clean weld profiles.
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Uninterruptible Power Supplies (UPS): Installed inside large utility scale backup battery chargers to manage steady mains rectification during standby battery charging sequences.
