Murata – Low-profile supercapacitors offer energy capacity up to 470μF


Murata’s DMT series of supercapacitors provides a compact source of auxiliary or back-up power for end-products with a low profile, such as solid-state disks and smart cards. The thinnest Electric Double-Layer Capacitor (EDLC) supercapacitor in the DMT series, the DMT3N4R2U224M3DTA0, is just 2.2mm high.

Designers can use the DMT series supercapacitors to stabilise the power line, providing a boost to the power supply at times of peak power demand. This peak power assistance function is particularly useful in battery-powered wireless communication devices such as remote keyless entry controllers and sensor nodes. The Murata supercapacitors are also used as a back-up power supply to enable end-products to save mission-critical data to non-volatile memory in case of power loss.

Murata’s supercapacitors are notable for their low levels of Equivalent Series Resistance (ESR). The DMT series also offers a wide operating-temperature range and operates highly reliably.

Murata also supplies the DMF series of supercapacitors, which offer ultra-low ESR of less than 100mΩ and capacitance of up to 1F, making them particularly suitable for high-power applications.


  • 4.2V rated voltage
  • ±0.3mm thickness tolerance
  • ±20% capacitance tolerance
  • Operating-temperature range: -40°C to 85°C


  • Solid-state drives
  • Remote keyless entry systems
  • Smart keys
  • Tracking devices
  • Smart cards
  • Wireless sensor nodes
Part NumberCapacitanceEquivalent Series ResistanceLength x WidthThickness
DMT334R2S474M3DTA0470μF130mΩ21mm x 14mm3.5mm
DMT3N4R2U224M3DTA0220μF300mΩ21mm x 14mm2.2mm