UESL Series

Ultra low ESL and ultra low profile capacitor down to 85µm

The UESL capacitors target power integrity and signal integrity for high-speed applications. With an ultra-low ESL (Equivalent Series Inductance) and an excellent behavior in high frequencies, the UESL capacitors are the perfect match for power supply decoupling and bypass of high-speed digital IC. The UESL capacitors feature ultra-low thickness (85µm and below) which enables advanced assembly with strong height restrictions (processor package, BGA land-side, embedded package...). The unique technology of integrated passive devices in silicon developed by Murata* provides high stability over DC voltage and temperature. Therefore, the UESL capacitors are not subject to derating. For example:

- the effective capacitance of the UESL 0404 450nF is comparable to an X5R MLCC of 1µF;
- the effective capacitance of the UESL 0402M 180nF is comparable to an X5R MLCC of 400nF;

*Murata Integrated Passive Solutions

Murata Icon X Key features

  • Ultra-low profile of 85µm
  • Very low ESR and ESL
  • High stability
  • Low leakage current
  • Lead-free NiAu finishing compatible with automatic soldering technologies: reflow or manual. Otherterminations available on request.

(please refer to our Assembly Application Note for more details)

Murata Icon X Key applications

  • Power Integrity for High-Speed IC
  • Power Supply Noise Suppression
  • Decouling in Power Distribution Network
  • Embedded Voltage Regulator Bypass
  • Signal Integrity of High-speed Interface
  • High-frequency noise suppression
  • Power line decoupling for application processors in smartphones
  • Any applications with ultra-low thickness requirement

Murata Icon X UESL series Specification

Parameter Value
Capacitance range 50nF to 450nF(*)
Capacitance tolerances ±15%(*)
Operating temperature range -55 to 125℃
Storage temperature range -70 to 140℃(*2)
Temperature coefficient +60 ppm/K
Breakdown Voltage (BV) 4.5VDC
Capacitance variation versus RVDC 0.1% / V (from 0 to RVDC)
Equivalent Series Inductor (ESL) Typ. 15pH
Equivalent Series Resistor (ESR) Typ. 30mΩ to 120mΩ (*3)
Insulation resistance 100GΩ @ 3V, @ 25℃, t>120s, for 100nF
Aging Negligible, < 0.001% / 1000h
Capacitor thickness 85µm
(*) Other values on request (*2) w/o packing (*3) value depends on products

Murata Icon X PDF Catalog

PDF documents related to silicon capacitors can be downloaded below

Commercial leaflet UESL V1.0_Murata (PDF: 0.8 MB)

  • UPDATE 2018/01/20
Download PDF

Assembly Note UESL V1.3_Murata (PDF: 0.6 MB)

  • UPDATE 2018/03/02
Download PDF