Catalogue EMI Suppression filters
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!Note * This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it's specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our C31E DClf sales represeTtasives oo produot engineers before orderine. .p
* This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 07 3 9
BLM18T Series (0603 Size) ■ Features
The chip ferrite beads BLM series is designed to function nearly as a resistor at noise frequencies, which greatly reduces the possibility of resonance and leaves signal wave forms undistorted. BLM series is effective in circuits without stable ground lines because BLM series does not need a connection to ground. The nickel barrier structure of the external electrodes provides excellent solder heat resistance. BLM_T series generates an impedance from the relatively low frequencies. Therefore BLM_T series is effective in noise suppression in a wide frequency range (10MHz to several hundred MHz). BLM_T series contributes further to miniaturizing portable equipment.
1.6±0.15
0.8±0.15
o o
o
0.4±0.2
BLM18T Series
Part Number
Impedance (at 100MHz/20°C) (ohm)
Rated Current (mA)
DC Resistance (max.) (ohm)
Operating Temperature Range
(°C)
BLM18TG121TN1
120 ±25%
200
0.25
-55 to +125
BLM18TG221TN1
220 ±25%
200
0.30
-55 to +125
BLM18TG601TN1
600 ±25%
200
0.45
-55 to +125
BLM18TG102TN1
1000 ±25%
100
0.60
-55 to +125
■ Impedance - Frequency (Typical)
BLM 18T Series
1200
800
g.
ID Q.
E
400
0
10 100
Frequency (MHz)
1000
■ Impedance - Frequency Characteristics
BLM18TG121TN1
BLM18TG221TN1
150
300
250
120
200
g.
90
0J ID
E
150
ID
E
60
100
30
50
0
0
10 100
Frequency (MHz)
1000
10
100
1000
Frequency (MHz)
Continued on the following page. f^l
30
■miifínfn
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