KOJO Technology / Kojo Seiko — Precision Clean Power Regeneration & Grounding Units
Global supply of precision clean AC power regeneration systems, virtual grounding modules, and noise filtration units engineered by KOJO Technology / Kojo Seiko Co., Ltd. (Japan). Featuring Aray MKII, Crystal E, Crystal3.1, and medical CCW supplies via SpareX.
Precision Clean AC Power Regeneration Units Aray MKII & KATANA25
The flagship Aray MKII regenerates clean AC sine waves with minimal harmonic distortion. The 580 VA Aray6 MKII and 2500 VA KATANA25 stabilize voltage across demanding lab loads. Built-in stages suppress incoming noise and ensure clean power delivery to precision instruments.
- Continuous output ratings from 580 VA on Aray6 MKII up to 2500 VA on KATANA25 units
- Clean AC sine wave regeneration with fixed 50 Hz and 60 Hz frequency stabilization
- Integrated multistage LC noise filtration network isolating line disturbances
- Replacement power inverter transistors, reference oscillators, and choke coils
Virtual Grounding Boxes & Terminals Crystal E & Crystal Ep
The Crystal E and Crystal Ep virtual ground systems dissipate stray chassis potentials. Layered conductive plate geometry creates massive surface area within a compact enclosure. Plug-in Ep versions connect directly to instrument RCA, USB, terminal lugs, and communication jacks.
- Layered copper and aluminum alloy plate stack providing extensive virtual surface
- Ultra-compact Crystal Ep form factor featuring gold-plated RCA and terminal pins
- Passive dissipation of high-frequency potentials without ground-loop hum issues
- Interconnect grounding straps, gold terminal lugs, and gold interface adaptors
Vibration-Isolated Power Strips Crystal3.1 & Crystal6.1
The Crystal3.1 and Crystal6.1 power distributors feature the proprietary M.I.S. decoupled chassis. The Crystal C1P module integrates surge absorption with an LC noise filter. Model Crystal H1P suppresses DC line voltage components, successfully silencing transformer hum on test benches.
- Patented M.I.S. mechanical isolation structure isolating external vibrations
- Integrated surge absorption and LC filter stages incorporated in Crystal C1P
- DC suppression circuit in Crystal H1P eliminating transformer acoustic buzz
- Modular 3P terminal blocks, solid copper internal busbars, and damping feet
Medical-Grade Power Units CCW1015-J & MKI-4 Distribution
The CCW1015-J and CV6024-J embedded power supplies fulfill JIS T 0601-1 electrical safety standards. Heavy-duty MKI-4 and MKI-6 power strips feature rigid aluminum housings with tough VCTF cabling. The MKZ45 distributor incorporates an antibacterial finish for clean laboratory environments.
- Wide input voltage tolerance from AC 85 V to 265 V with steady output voltage
- Strict compliance with CISPR-11 Class B radiated and conducted noise ceilings
- Impact-resistant extruded aluminum chassis with reinforced heavy-duty wiring
- Replacement power supply driver boards, input safety fuses, and inlet ports
Custom DC/DC Converters & Industrial PWM Inverters
KOJO custom engineering division designs specialized switching power supplies for testing systems. The 1000 VA PWM inverters deliver reliable AC waveforms for analytical hardware. Multi-channel DC/DC converters supporting 14 outputs integrate cleanly into modular UPS battery racks.
- PWM inverters rated at 1000 VA featuring a crest factor of 3 for surge loads
- Multi-channel DC/DC assemblies providing up to 14 isolated output rails
- Low-profile module designs maintaining an installation height down to 30 mm
- Driver board subassemblies, specialized magnetic chokes, and cooling plates
Semiconductor Inspection Probe Cards & Fixture Components
Since its establishment in 1990, KOJO has manufactured probe cards for wafer test procedures. The Matsuzaki facility builds mechanical subassemblies for wafer probers and LCD inspection testers. High-precision tooling ensures consistent micro-probe electrical contact reliability.
- Multi-pin probe card arrays engineered for micro-pitch semiconductor testing
- Precision mechanical alignment stages and positioning plates for prober units
- Hardware inspection components developed for flat-panel liquid crystal lines
- Replacement contact probe needles, ceramic guide rings, and test cable looms
Precision Clean Power Regeneration Architecture by KOJO Technology
Japanese manufacturer KOJO Technology (Kojo Seiko Co., Ltd.) engineers precision AC regeneration power units designed to eliminate electrical waveform distortion.
The equipment protects high-precision measurement systems, medical apparatus, and laboratory benches from high-frequency harmonics and line surges.
The product portfolio spans flagship Aray MKII and Aray6 MKII clean AC power supplies, multi-layer Crystal E virtual grounding units, vibration-isolated M.I.S. distribution strips, and JIS T 0601-1 compliant embedded medical power modules CCW1015-J.
Technical Selection Criteria for Power Regulators & Grounding Units
Selecting the appropriate KOJO Technology / Kojo Seiko electrical infrastructure requires assessing peak load demand, crest factor, and equipment sensitivity to conducted noise.
Precision laboratories deploy Aray MKII regenerators and Crystal E virtual ground modules to stabilize equipment operations.
For industrial racks affected by transformer DC offset and incoming transient surges, Crystal C1P filter strips and Crystal H1P DC suppressors are recommended. SpareX provides comprehensive load profiling, interface verification, and global equipment dispatch.
KOJO Technology / Kojo Seiko and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of KOJO Technology / Kojo Seiko and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
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Documents and sources
- KOJO Technology official corporate profile — manufacturing facilities in Aomori Japan
- Precision clean AC power units and virtual grounding boxes — Aray and Crystal series
- Medical and industrial embedded power supplies — CCW series and MKI distribution strips
- Custom switching power supplies and inverters — multichannel converter module engineering
