601 Series - RC Networks T-Filters
Attenuation Vs. Frequency - Typical Capacitor Values With R= 25 Ohms
ATTENUATION VS. FREQUENCY - TYPICAL CAPACITOR VALUES WITH R = 25 OHMS
Attenuation vs. Frequency
+5dB
Model 4120R-601-250/500
Model 4420-601-250/500
50pF - ±dB @ 84 MHz
0dB
-5dB
50pF
Attenuation vs. Frequency
Model 4120R-601-250/201
Model 4420P-601-250/201
200pF - ±dB @ 21 MHz
-10dB
-15dB
200pF
-20dB
-25dB
-±0dB
-±5dB
-40dB
DC
100Hz
1kHz
10kHz
.1MHz
1MHz
10MHz 100MHz 1GHz
indicates - ±dB rolloff frequency (f )
c
These low-pass filters are ideal for installation between I/O drivers and RS 2±2
connectors.
Typical Circuit
TYPICAL CIRCUIT
4120R-601-RC/CC
4420R-601-RC/CC
How To Order EMI/RFI Filter Networks
44 20 P - 601 - RC/CC __
1
20
Model
(44 = SMD SOIC Pkg)
(41 = Molded DIP)
Terminations
L = RoHS compliant (tin-plated)
Blank = Tin-lead plated
R
R
C
Number of Pins
Resistance/Capacitance Code
• First 2 digits are significant
• Third digit represents the
number of zeros to follow
Physical Configuration
P = Surface Mount Device
(SMD)
R = Molded DIP
Electrical Configuration
R
Insert RC/CC Code from table below to
form part number.
Packages Available
4420P-601-*RC/CC-SMD
4120R-601-*RC/CC-DIP
4118R-601-*RC/CC-DIP
RC
250
270
470
820
101
R
CC
500
101
181
201
C
25Ω
27Ω
47Ω
82Ω
100Ω
50pF
100pF
180pF
200pF
*First two digits are significant. Third
digit represents the number of zeros to
follow.
10
11
Seven circuits in an 18-pin package.
Eight circuits in a 20-pin package.
CONSULT FACTORY FOR VALUES NOT LISTED
REV. 09/07
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.