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 Number||Capacitance||Equivalent Series Resistance||Length x Width||Thickness|
|DMT334R2S474M3DTA0||470μF||130mΩ||21mm x 14mm||3.5mm|
|DMT3N4R2U224M3DTA0||220μF||300mΩ||21mm x 14mm||2.2mm|