601 Datasheet, PDF (2/2 Pages) Littelfuse – MINIATURE FUSEHOLDERS

601 Series - RC Network T-Filters
Attenuation Vs. Frequency - Typical Capacitor Values With R= 25 Ohms
Attenuation vs. Frequency
Model 4120R-601-250/500
Model 4420-601-250/500
50pF - 3dB @ 84 MHz
Attenuation vs. Frequency
Model 4120R-601-250/201
Model 4420P-601-250/201
200pF - 3dB @ 21 MHz
+5dB
0dB
-5dB
-10dB
-15dB
-20dB
-25dB
-30dB
-35dB
-40dB
50pF
200pF
indicates - 3dB rolloff frequency (fc)
DC 100Hz 1kHz 10kHz .1MHz 1MHz 10MHz 100MHz 1GHz
Typical Circuit
4120R-601-RC/CC
4420R-601-RC/CC
1
R
C
20
R
These low-pass filters are ideal for installation between I/O drivers and RS 232
connectors.
How To Order EMI/RFI Filter Networks
44 20 P - 601 - RC/CC __
Model
(44 = SMD SOIC Pkg)
(41 = Molded DIP)
Terminations
L = RoHS compliant (tin-plated)
Blank = Tin-lead plated
Number of Pins
Resistance/Capacitance Code
• First 2 digits are significant
• Third digit represents the
Physical Configuration
number of zeros to follow
P = Surface Mount Device (SMD)
R = Molded DIP
Electrical Configuration
For tube packaging, use code
R
“T06”
Insert RC/CC Code from table below to
form part number.
RC
R
CC
C
Packages Available
250
25
500
50 pF
4420P-601-*RC/CC-SMD
270
27
101
100 pF
4120R-601-*RC/CC-DIP
10
11
470
820
47
82
181
180 pF
201
200 pF
4118R-601-*RC/CC-DIP
101
100
Consult factory for values not listed.
*First two digits are significant. Third digit
represents the number of zeros to follow.
Seven circuits in an 18-pin package.
Eight circuits in a 20-pin package.
REV. 09/14
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.