Thin Film Circuit Substrates (RUSUB)Product Lineup for Impedance Matching

RUSUB series is specialized for custom-design products.

Design tool provides you our design possibilities from required dimensions, dielectric constant and capacitance.

Simple calculation will assist your first drawing!

Please note that any values calculated here are only for your reference.Please contact us for detailed specifications.

Design Tool

Please note that the range of each value is subject to the other values.

1. Input given W, L and εr.

Please be sure to input dimensions from 0.25 to 5.00mm, and the length of one side has to be 5 times less than the other side.Please select given εr from the list.

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Parameters Input Range
W(mm)
0.255.00
L(mm)
0.255.00
εr
39,90,150,250
img-center

2. Input pF

Please input the given value from the range that is calculated based on the values input above.

*In case you cannot find the required capacitance in the range, please adjust εr referring to fundamental equation.

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C(pF)
img-center
Check the thickness

3.Check the thickness

T(μm)
100~600

*Thickness is shown in increments of 1µm.

Simulation History (Reference value)

This time Previous
simulation
The last
simulation
but one
W(mm) …… 0
L(mm) …… 0
εr …… 0
C(pF) …… 0
T(μm) …… 0
Capacity Temperature Characteristics *1
(ppm/℃)
Coefficient of Thermal Expansion*2
(ppm/℃)
Temperature Conductivity*2
(W/m・℃)
*1) Typical value
*2) Temperature Range:-25~85°C

Samples

  • 18 types of standard samples suitable for impedance matching are available.
  • Custom samples are also available upon request.
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Part Number Capacitance
(pF)
Material
(εr)
Dimensions (mm) Thickness(μm) S-parameters
RUCS7790A 1 39 1.0×0.5 150 Samples 1pF.s2p
RUCS7790B 1.5 90 1.0×0.5 230 Samples 1.5pF.s2p
RUCS7790C 2 90 1.0×0.5 170 Samples 2pF.s2p
RUCS7790D 2.5 90 1.0×0.5 130 Samples 2.5pF.s2p
RUCS7790F 3.5 150 1.0×0.5 160 Samples 3.5pF.s2p
RUCS7790H 4.5 250 1.0×0.5 210 Samples 4.5pF.s2p
RUCS7791A 6 90 2.0×1.0 215 Samples 6pF.s2p
RUCS7791C 8 90 2.0×1.0 160 Samples 8pF.s2p
RUCS7791E 10 150 2.0×1.0 220 Samples 10pF.s2p
RUCS7791G 12 150 2.0×1.0 180 Samples 12pF.s2p
RUCS7791I 14 150 2.0×1.0 150 Samples 14pF.s2p
RUCS7791K 16 150 2.0×1.0 130 Samples 16pF.s2p
RUCS7791O 20 250 2.0×1.0 180 Samples 20pF.s2p
RUCS7791Q 30 250 2.0×1.0 115 Samples 30pF.s2p
RUCS7792B 40 250 3.5×2.0 360 Samples 40pF.s2p
RUCS7792D 50 250 3.5×2.0 285 Samples 50pF.s2p
RUCS7792F 70 250 3.5×2.0 200 Samples 70pF.s2p
RUCS7792H 90 250 3.5×2.0 155 Samples 90pF.s2p