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LC Filter Design Tool
Calculate LC filters circuit values with low-pass, high-pass, band-pass, or band-stop response.
Select Chebyshev, Elliptic, Butterworth or Bessel filter type, with filter order up to 20, and arbitrary input and output impedances.
More info
Filter Properties
Response
Type
Lowpass
Highpass
Bandpass
Bandstop
Chebyshev
Elliptic
Butterworth
Inverse Chebyshev
Bessel
Legendre
Topology
Topology
Order
Shunt First
Series First
Conventional, Shunt First
Conventional, Series First
Direct-Coupled, Series Capacitor
Direct-Coupled, Shunt Capacitor
Direct-Coupled, Series Inductor
Direct-Coupled, Shunt Inductor
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Cutoff Frequency
Hz
KHz
MHz
GHz
Lower Cutoff Frequency
Upper Cutoff Frequency
Hz
KHz
MHz
GHz
Hz
KHz
MHz
GHz
Passband Ripple (dB)
Stopband Atten. (dB)
Input Impedance (Ω)
Output Impedance (Ω)
Direct Coupled Capacitor Value
Direct Coupled Inductor Value
mF
uF
nF
pF
mH
uH
nH
Additional Settings
Component Values
Exact
Standard
Capacitor Values
Min. Capacitor Value
E6 (20% tolerance)
E12 (10% tolerance)
E24 (5% tolerance)
E48 (2% tolerance)
E96 (1% tolerance)
mF
uF
nF
pF
Inductor Values
Min. Inductor Value
E6 (20% tolerance)
E12 (10% tolerance)
E24 (5% tolerance)
E48 (2% tolerance)
E96 (1% tolerance)
mH
uH
nH
Compute
Reset
Insertion Loss and Return Loss
Phase and Group Delay
S-Parameters
Download S2P File
S2P file download is only available for equally terminated filters.
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