Our "LFA10,LFA20,LFA30" series chip type LC EMI filter is an extremely efficient EMI filter made of a combination of both dielectric and magnetic materials.
They are well suited for elimination of noise on high frequency signal lines, due to their steep insertion loss characteristics.
■ Features
• Monolithic construction of dielectric and magnetic materials
• Ultra miniature and low profile type
• Steep insertion loss characteristics
• Removes noise over a wide range
• Easy to place since there is no polarity
■ Applications
• For digital AV equipment such as TV, VCR and DVD.
• For telecommunication equipment such as Fax, modem and ADSL.
• For computer equipment such as personal computers and copier.
• For noise countermeasure of other digital circuit equipment.
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LFA10 series
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LFA20 series
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LFA30 series
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Material Structure
(Reference)
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■ Part number system
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LFA
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10
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2A
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1E
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223
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M
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T
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E
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Size
| 10F |
1.6× |
0.8mm |
| 20F |
2.0× |
1.25mm |
| 30F |
3.2× |
1.6mm |
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(L) |
(W)
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Cut-off frequency tolerance
M: ±20%
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■ Dimensions(mm)
■ Equivalent circuits
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LFA10
series
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LFA20,
30 series
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■ Part number list
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Part number |
Cut-off
frequency |
Marking |
Cut-off frequency
tolerance |
Rated
voltage |
Rated
current |
Insulation
Resistance |
Capacitance
(Reference) |
Operating
Temp.
range |
| LFA10
series |
±20%
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25V
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100mA
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10MΩmin
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-40ºC+85ºC
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LFA10-2A1E223M  |
22MHz |
- |
290pF |
LFA10-2A1E473M |
47MHz |
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115pF |
LFA10-2A1E683M |
68MHz |
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68pF |
LFA10-2A1E104M |
100MHz |
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34pF |
LFA20
series |
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LFA20-2A1E103M  |
10MHz
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A1
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550pF |
LFA20-2A1E223M |
22MHz
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A2
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300pF |
LFA20-2A1E473M |
47MHz
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A3
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82pF |
LFA20-2A1E683M |
68MHz
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A4
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45pF |
LFA20-2A1E104M |
100MHz
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A5
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37pF |
LFA20-2A1E224M |
220MHz
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A6
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15pF |
| LFA30
series |
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LFA30-2A1E103M |
10MHz
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F1
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680pF |
LFA30-2A1E223M |
22MHz
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F2
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300pF |
LFA30-2A1E473M |
47MHz
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F3
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68pF |
LFA30-2A1E683M |
68MHz
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F4
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49pF |
LFA30-2A1E104M |
100MHz
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F5
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19pF |
LFA30-2A1E224M |
220MHz
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F6
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16pF |
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: "T" stands for taping package and "B " stands for bulk package.
: "E" stands for marking type and " " stands for non-marking type.
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■ Insertion loss (Reference)
■ Test circuit
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