Ultra broadband wire-bondable embedded capacitor up to 60GHz+

UBEC / BBEC / ULEC Capacitors target optical communication systems (ROSA / TOSA, SONET and all optoelectronics) as well as high speed data systems or products. The UBEC / BBEC / ULEC are designed for DC decoupling and bypass applications. The unique technology of integrated passive devices in silicon developed by Murata*, offers high rejection up to more than 60GHz for the UBEC, up to 40GHz for the BBEC and up to 20GHz for the ULEC. These deep trench silicon capacitors have been developed with a semiconductor MOS process.

The UBEC / BBEC / ULEC capacitors provide very high reliability and capacitance stability over temperature (+60ppm/K) and voltage. They have and extended operating temperature range from -55 to 150℃. Reliable and repeatable performances are obtained thanks to a fully controlled production line with high temperature curing (above 900℃) generating a highly pure oxide. These capacitors are compatible with standard wire bonding assembly (ball and wedge). They are RoHS compliant and are available with thick Aluminum terminations.

*Murata Integrated Passive Solutions

Murata Icon X Key features

  • Ultra broadband performance up to 67GHz
  • Resonance free allowing ultra group delay variation
  • Ultra low insertion loss thanks to an excellent
  • impedance matching in transmission mode
  • Low ESL and low ESR in bypass grounding mode
  • High stability of capacitance value over temperature, voltage and aging
  • High reliability
  • Compatible with standard wire bonding assembly (ball and wedge) and embedding.
(please refer to our assembly application note for more details)

Murata Icon X Key applications

  • Optoelectronics/high-speed data
  • Trans-Impedance Amplifiers (TIA)
  • Receive-and-Transmit Optical Sub-Assembly (ROSA/TOSA)
  • Synchronous Optical Networking (SONET)
  • High speed digital logic
  • Broadband test equipment
  • Broadband microwave/millimeter wave
  • Replacement of X7R and NP0 capacitors
  • Low profile applications (100μm)

Murata Icon X UBEC / BBEC / ULEC series Specification

Parameter Value
Capacitance range 1nF to 100nF (*)
Capacitance tolerances ±15% (*)
Operating temperature range -55°C to 150°C
Storage temperature -70°C to 165°C (*2)
Temperature coefficient +60 pmm/K
Breakdown Voltage (BV) 11VDC or 30VDC
Capacitance variation versus RVDC 0.1%/V (from 0 to RVDC)
Insertion loss (IL) up to 60GHz <0.4dB (*3)
Return Loss (RL) up to 60GHz >20dB (*3)
Equivalent Series Inductance (ESL) Typ. 500pH (*3) @ SRF
Equivalent Series Resistance (ESR) Typ. 100mΩ (*3)
Insulation resistance 100GΩ @ RVDC, @25℃, t>120s, for 100nF
Aging Negligible, < 0.001% / 1000h
Reliability FIT<0.017parts / billions hours
Capacitor height Max 100µm

(*) Other values on request
(*2) w/o packing
(*3) e.g. UBEC 10 nF/0201M/BV 11 V

Murata Icon X Series Lineup

Ultra BroadBand Embedded/Wire bondable Silicon Capacitor
from -55 to 150℃, 60GHz+ with Al termination
Part number Capacitance BV
Case size Thickness
935157725410-xxA 1nF 30V
0201M 100µm
935157725456-xxA 5.6nF 30V
0201M 100µm
935157425510-xxA 10nF 11V
0201M 100µm
935157421610-xxA 100nF 11V
0404 100µm

BroadBand Embedded/Wire bondable Silicon Capacitor
from -55 to 150℃, 40GHz with Al termination
Part number Capacitance
Case size Thickness
939132421610-xxA 100nF 11V
0404 100µm

Ultra Large band Embedded/Wire bondable Silicon Capacitor
from -55 to 150℃, 20GHz with Al termination
Part number Capacitance
Case size Thickness
935158421610-xxA 100nF 11V
0404 100µm

For other values, contact your Murata sales representative.

Murata Icon X PDF Catalog

PDF documents related to silicon capacitors can be downloaded below

Commercial leaflet UBEC / BBEC / ULEC V1.3_Murata (PDF: 1.1 MB)

  • UPDATE 3/15/2019
Download PDF

Assembly Note UBEC / BBEC / ULEC V1.3_Murata (PDF: 0.7 MB)

  • UPDATE 2/2/2018
Download PDF