Common Mode Noise Filter
LCFA Series
LCFA Series
Description
LCFA Series cover the engineering requirements of Common Mode Noise Filter
(CMF) for high speed differential serial interfaces, such as USB 3.1, USB 2.0,
MIPI D-PHY/HDMI and RGB line, and LVDS line. This AEC-Q200 qualified
common mode noise filter will help to choke and attenuate the noise of the
growing number of electronic applications in modern vehicles.
Features
• AEC-Q200 qualified
• Effective for suppressing common
mode noise and almost no effect for
high speed differential data line
• Differential mode cut-off frequency
up to 4.65GHz at -3dB
• Low profile package
• Ceramic multilayer type SMD
component
• Non-polarized product
• Conforming to RoHS directive
• High temperature soldering
guaranteed: 260°C/10 seconds
Pinout
LCFA121002A900TG, LCFA121002B900TG, and
LCFA201202A900TG
Pin1
Pin3
Applications
• Automotive Infotainment: Display,
Car Navigation, Head Unit, USB
Jack
• ADAS: Car Camera System
• Automotive Telematics Control Unit,
E-Call system, and Smart Keyless
Entry system
• Automotive RGB line, LVDS line,
HDMI for AVN, and High-speed
CAN BUS line
• PDP, LCD TV, DVD Player, PC, Audio
player, DSC, Set top box, Laptop,
SSD, and Home Automation
• Portable/Wearable Devices
• Mobile phone, Tablet, Game
console, POS, VR, and Dongle
Pin2
Pin4
Item
Rdc
CM
Impedance
Description
Pin 1-3, 2-4
Pin 1-2(Short) to
Pin 3-4(Short)
Source
10mA DC
Source
Equipment
Source Meter
LCR Meter
(3GHz)
Functional Block Diagram
LCFA201204A101TG
Pin1
Pin2
Pin3
Pin4
LCFA121002A900TG, LCFA121002B900TG, and
LCFA201202A900TG
3
3
4
4
1
1
2
2
Pin8
Pin7
Pin6
Pin5
Item
Rdc
Description
Pin 1-8, 2-7
3-6, 4-5
Pin 1-2(Short) to
Pin 8-7(Short)
Pin 3-4(Short) to
Pin 6-5(Short)
Source
10mA DC
Source
Equipment
Source Meter
~:
Data Line
1
1
2
2
3
3
4
4
LCFA201204A101TG
CM
Impedance
LCR Meter
(3GHz)
8
8
7
7
6
6
5
5
~:
Data Line
© 2017 Littelfuse
Revised: 06/23/17
Specifications are subject to change without notice.
littelfuse.com
Common Mode Noise Filter
LCFA Series
Electrical Characteristics
Part Number
LCFA121002A900TG
LCFA121002B900TG
LCFA201202A900TG
LCFA201204A101TG
Size
(mm)
1210
1210
2012
2012
Size
(inch)
0504
0504
0805
0805
Common Mode
Impedance
(Ω)
90(±25%)
90(±25%)
90(±25%)
100(±25%)
Rated Current
Cut-off Freq/
(mA)
GHz
Max.
100
150
100
100
4.65
4.65
3.89
2.92
DC
Resistance
(Ω)
Max.
4.0
4.0
4.0
4.0
Number
of Lines
2
2
2
4
Leakage
Current
(μA)
Max.
1.0
1.0
1.0
1.0
Insulation
Resistance (MΩ)
Min.
10
10
10
10
Test Conditions
• Common Mode Impedance (Ω): @100MHz
• DC Resistance (Ω): 25ºC±2ºC
• Leakage Current (μA): 5V
• Insulation Resistance (Max. MΩ): 5V
• Rated Current (mA): 25ºC±2ºC
Impedance Curves
Common Mode
1k
LCFA121002A900TG
ICMAF112P900MFR
LCFA121002B900TG
Differencial Mode
1k
LCFA121002A900TG
ICMAF112P900MFR
LCFA121002B900TG
Impedance (Ω)
100
Impedance (Ω)
100
10
10
1
1M
10M
Frequency (Hz)
100M
1G
10G
1
1M
10M
Frequency (Hz)
100M
1G
10G
Transmission Characteristics (S-parameter)
Common Mode S21
0
-3
-6
LCFA121002A900TG
ICMAF112P900MFR
LCFA121002B900TG
Differencial Mode S21
0
-3
-6
Insertion Loss(dB)
-12
-15
-18
-21
-24
-27
-30
-33
1M
10M
100M
1G
10G
Insertion Loss(dB)
-9
-9
-12
-15
-18
-21
-24
-27
-30
ICMAF112P900MFR
LCFA121002B900TG
LCFA121002A900TG
Frequency(Hz)
-33
1M
10M
Frequency(Hz)
100M
1G
10G
© 2017 Littelfuse
Revised: 06/23/17
Specifications are subject to change without notice.
littelfuse.com
Common Mode Noise Filter
LCFA Series
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (Min to Max) (t
s
)
Pb-free assembly
160°C
185°C
1°C/second max
1°C/second max
220°C
30 − 50 seconds
260
+0/-5
°C
5 − 10 seconds
2°C/second max
4 minutes max
260°C
260°C, 10 sec. max
T
P
T
L
Temperature
t
P
Ramp-up
Critical Zone
T
L
to T
P
100 − 120 seconds
Average Ramp-up Rate
(Liquidus Temp (T
L
) to peak)
T
S(max)
to TL - Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
T
S(max)
T
S(min)
Preheat
t
L
Ramp-down
t
S
time to peak temperature
(t 25ºC to peak)
Peak Temperature (T
P
)
Time within 5°C of
actual peak Temperature (t
p
)
Ramp-down Rate
Time 25°C to Peak Temperature (T
P
)
Do not exceed
Wave Soldering
25
Time
Recommended Soldering Profile ( Lead free condition)
Product Characteristics
Lead Pull Strength
Solderability
Soldering Heat
Resistance
5N
260ºC, ≤10s (Reflow),
Max 380ºC, ≤5s (Soldering iron)
Max 260ºC 10sec (Wave), Max
Temperature: Max 380ºC (Max 5sec)
Operating Temperature
Climatic Category
Stock Conditions
Vibration Resistance
-40ºC to +125ºC (consider re-rating)
-40ºC + 85ºC/8 days
-10ºC + 40ºC RH , ≤ 70%
5 g’s for 20 minutes, 12 cycles each
of three orientations
© 2017 Littelfuse
Revised: 06/23/17
Specifications are subject to change without notice.
littelfuse.com
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