XBSC / UBSC / BBSC / ULSC Series

Ultra broadband surface mounted capacitor up to 100GHz

The XBSC / UBSC / BBSC / ULSC Capacitors target optical communication systems (ROSA /TOSA, SONET and all optoelectronics) as well as high speed data systems or products. These capacitors are designed for DC blocking, coupling and bypass grounding applications. The unique technology of integrated passive devices in silicon developed by Murata* offers low insertion loss, low reflection and high phase stability from 16 kHz up to more than 100 GHz for the XBSC, upto more than 60 GHz for the UBSC, up to 40 GHz for the BBSC and up to 20 GHz for the ULSC. These deep trench silicon capacitors have been developed with a semiconductor MOS process. They provide very high reliability and capacitance stability over voltage (0.1%/V) and temperature (60 ppm/K).

They have an extended operating temperature range from -55 to 150℃. Reliable and repeatable performances areobtained thanks to a fully controlled production line with high temperature curing (above 900℃) generating a highly pure oxide. The XBSC / UBSC / BBSC / ULSC series are compliant with standard JEDEC assembly rules, making theproduct fully compatible with high speed automated pick-and-place manufacturing operations. These capacitors areRoHS-compliant and are available either with ENIG terminations or lead-free prebumping depending on the case size.

*Murata Integrated Passive Solutions

Key features	Key applications	XBSC / UBSC / BBSC / ULSC series Specification
XBSC Series	UBSC Series	BBSC Series
ULSC Series	Substrate Design Support Tool	PDF Catalog

Ultra broadband performance up to 110 GHz
Resonance free allowing ultra low 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 lead free reflow soldering

(please refer to our assembly application note for more details)

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 (400 or 100μm)

Parameter	Value
Parameter	XBSC 100 GHz+	UBSC 60 GHz+	BBSC 40 GHz	ULSC 20 GHz
Capacitance range	5.6 nF to 10nF ^(*2)	1nF to 100nF ^(*2)	1nF to 100nF ^(*2)	1nF to 100nF ^(*2)
Capacitance tolerances	±15% ^(*2)	±15 % ^(*2)	±15% ^(*2)	±15% ^(*2)
Mounting Method	Solder Mounting	Solder Mounting	Solder Mounting	Solder Mounting
Operating temperature range	-55℃ to 150℃	-55℃ to 150℃	-55℃ to 150℃	-55℃ to 150℃
Storage temperature	-70℃ to 165℃ ^(*3)	-70℃ to 165℃ ^(*3)	-70℃ to 165℃ ^(*3)	-70℃ to 165℃ ^(*3)
Temperature coefficient	+60ppm/K	+60pmm/K	+60pmm/K	+60pmm/K
Breakdown Voltage (BV)	11VDC or 30VDC	11VDC or 30VDC	11VDC or 30VDC	11VDC or 30VDC
Capacitance variation versus RVDC	0.1%/V (from 0V to RVDC)	0.1%/V (from 0 to RVDC)	0.1%/V (from 0 to RVDC)	0.1%/V (from 0 to RVDC)
Insertion loss (IL) up to 60GHz	<1.2dB ^(*)	<0.4 dB ^(*4)	<0.4 dB ^(*5)	<0.2dB ^(*6)
Return Loss (RL) up to 60GHz	>20dB ^(*)	>20dB ^(*4)	>15dB ^(*5)	>20dB ^(*6)
Equivalent Series Inductance (ESL)	Typ. 100pH ^(*) @ SRF	Typ. 100pH ^(*4) @ SRF	Typ. 100pH ^(*5) @ SRF	Typ. 100pH ^(*6) @ SRF
Equivalent Series Resistance (ESR)	Typ. 300mΩ ^(*)	Typ. 300 mΩ ^(*4)	Typ. 500mΩ ^(*5)	Typ. 500mΩ ^(*6)
Insulation resistance	10 GΩ @ RVDC, @25℃, t>120s, for 10nF	100GΩ @ RVDC, @25℃, t>120s for 100nF	100GΩ @ RVDC, @25℃, t>120s for 100nF	100GΩ @ RVDC, @25℃, t>120s for 100nF
Aging	Negligible, < 0.001% / 1000h	Negligible, < 0.001% / 1000h	Negligible, < 0.001% / 1000h	Negligible, < 0.001% / 1000h
Reliability	FIT<0.017parts / billion hours	FIT<0.017parts / billion hours	FIT<0.017parts / billion hours	FIT<0.017parts / billion hours
Capacitor height	100µm	400µm or 100µm	400µm or 100µm	400µm or 100µm

^(*) e.g. 10nF / 0201M / BV 11V
^(*2) Other values on request
^(*3) w/o packing
^(*4) e.g. 5.6nF / 0201M / BV 30V
^(*5) e.g. 10nF / 0201/BV 30V
^(*6) e.g. 100nF / 0402 / BV 11V

More detailed search

		Silicon capacitor Matched Line				Assembly of Broadband Silicon Capacitors: Guidelines for improved Impedance Matching
						UPDATE 2020/08/11
		Substrate Design Support Tool				Download PDF