Top 9 Programmable High Voltage DC Power Supply Manufacturers in Tokyo 2025

1. YAMABISHI Corporation

YAMABISHI was founded in 1958 in Tokyo and has developed power supply systems for over 60 years. They make high-performance power supplies including high voltage power supplies and DC models for industrial use, built with protective functions and strong reliability for tough loads. Their product quality stands out from Japanese manufacturing standards, especially for protective features and durability.

Why choose them: Long history of power-supply design means deep experience and trusted reliability. Their focus on protective functions gives added safety for high-voltage DC use.

Address: Tokyo, Japan

2. Japan Stabilizer Industry Co., Ltd.

Japan Stabilizer Industry makes ultra high voltage dc power supply from 10 kV to 50 kV, and has decades of switching-technology expertise in Japan. Their “HSV Series” provides remote control, short circuit protection, and reliable outputs in demanding environments like hot and humid. The product quality emphasizes stable voltage, safety features, and long life under heavy duty.

Why choose them: Specialists in very high power electronic load, ideal for insulation testing, high-voltage labs. Their protecting & switching tech means safer operations under tough conditions.

3. Tokyo Seiden Co., Ltd.

Tokyo Seiden offers AC/DC high voltage electronic load built for calibration labs and large-scale testing. Their units use oil-immersion and built-in discharge circuits for each output, meaning the product is designed for stable performance and maintenance-friendly operation. Product quality includes fine-tuning voltage, remote control and well-protected HV output.

Why choose them: Good for labs needing high-voltage DC supply with accurate control and stable behavior. Their design emphasizes safety and long life which matter for high-voltage equipment.

Address: Tokyo, Japan

4. Matsusada Precision Co., Ltd.

Matsusada Precision produces a wide range of programmable DC power supplies including high‐voltage types and high-power units for production and lab use. Their high-voltage models are made for device/inverter testing, with features like remote operation, arc protection and high accuracy. The product quality is high, with tight specs, programming capability, and strong durability.

Why choose them: They excel in high power dc electronic load programmable output and are trusted for professional test systems. Their broad product range makes them flexible for labs or industrial setups.

5. Kikusui Electronics Corporation

Kikusui has many years of experience developing DC power supplies, including high-voltage and high‐power models. Their PXB series and PXT series show high-density power, rack size, remote control interfaces and reliability under tough testing. Their product quality emphasizes high voltage compatibility, compact size, good cooling and long life.

Why choose them: Japanese maker with strong reputation in programmable high-voltage DC/AC power supplies for labs and industrial use. Their products are scalable from rack systems, parallel operation, and high quality.

6. IDX Co., Ltd.

IDX is a Japan-based supplier/manufacturer of high-performance programmable dc power supply, emphasizing low noise, high stability and long life in demanding environments. Their DC power supply units are used in scientific research, medical and industrial sectors where reliability matters. The product quality is marked by consistent voltage, strong build and good ambient tolerance.

Why choose them: Good choice when you need reliable DC power supplies with solid performance in labs or industrial settings. Their experience and design make them suitable for long-term operation under challenging conditions.

7. Adtec Plasma Technology Co., Ltd.

Adtec Plasma Technology manufactures high-voltage DC power supplies, bipolar output units, and high-speed arc-cutoff units, used for advanced industrial applications like plasma generation and electrostatic chuck power. Their products are crafted for harsh settings, with water-cooling, fast response and strong protection. The product quality focuses on durability, high withstand voltage and precise output control.

Why choose them: Excellent for industrial high-voltage use where precision, stability and rugged build are required. Their parts are built to handle demanding loads like plasma or semiconductor tools.

8. Shindengen Electric Manufacturing Co., Ltd.

Shindengen, headquartered in Tokyo, is a long-established maker of power electronics, including DC power systems and high-voltage related supplies. While not exclusively focused on bench programmable units, their experience in power electronics and manufacturing means their high-voltage modules and power supplies are reliable and high quality. The product quality comes from decades of industrial manufacturing, strong material standards and robust design.

Why choose them: Trusted Japanese electronics company with strong manufacturing experience and high-voltage supply capability. Good if you need solid modules or supply with high ruggedness and support.

Address: Ōtemachi, Chiyoda-ku, Tokyo, Japan

9. TMEIC Corporation

TMEIC (Tokyo) is a joint venture of Toshiba & Mitsubishi Electric, supplying large-scale industrial power electronics systems including high-voltage DC supplies and HV equipment. Their experience is in big systems including automation, power delivery, HV control, and their supplies for high-voltage DC test or industrial use leverage this expertise. Product quality is industrial-grade, designed for large scale, high reliability and long life.

Why choose them: Ideal for large-capacity, high-voltage DC supply systems where you need industrial scale and strong backing. Their Tokyo base means local presence and global capabilities.

Address: Tokyo, Japan