New ionizer added to DC input series lineup

  • Ionizers / Active Oxygen Module (Ozonizers)


Murata Manufacturing Co., Ltd. (hereinafter, "Murata") has developed the MHM320 ionizer (hereinafter, "product"), a new product in the MHM3 DC input series. Mass production began in February 2022. Samples are also available.

The demand for air purifiers has increased in recent years, due to a heightened focus on maintaining health and hygiene. This has resulted in calls to enhance air purifier functionality and to add air improvement functionality to home appliances. In response, Murata has developed a product capable of high-efficient ion generation at low voltage.
Compared with Murata's MHM306 product, the new product is capable of greater ion and ozone generation*1, which should further increase the effect of functions such as air purification, sterilization, and odor elimination. The board used in the product is of the same size as other MHM3 series products and is also installed in the same location, allowing for simple replacement. It also uses the same pin assignment on the input connector as Murata's MHM305 and MHM306 products, allowing it to be used with existing equipment without any need to change the interface.

  • *1
  Before (MHM306) After (MHM320)
Ion amount 5,000,000 pcs/cc 8,000,000 pcs/cc
Ozone amount 0.6 mg/h 0.8 mg/h

Murata will continue to develop technologies to help bring safety and security to society.

Major specifications

Product name MHM320
Input voltage 12 VDC (10.8 to 13.2 V)
Input current 80 mA (typ.)
Ion amount*2 8,000,000 pcs/cc (typ.)
Ozone generation*2 0.8 mg/h (typ.)
Size 53.0 × 31.0 × 19.3mm (High-voltage power supply)
Output wire length 200 mm / 300 mm / 400 mm
  • *2Based on Murata measurements

Product pages

To find out more, visit product details site.

Murata in Brief

Murata Manufacturing Co., Ltd. is a worldwide leader in the design, manufacture and sale of ceramic-based passive electronic components & solutions, communication modules and power supply modules. Murata is committed to the development of advanced electronic materials and leading edge, multi-functional, high-density modules. The company has employees and manufacturing facilities throughout the world. For more information, visit Murata's website at