Datasheet

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date 03/2010
page 1 of 7
DESCRIPTION: DC EMI FILTER
SERIES: VFM-XX
FEATURES
•compact size
•suitable for use with a wide
range of dc-dc converters
•reduces common and
differential mode noise
RoHS
MODEL
input voltage
input surge voltage1
input current
isolation voltage2
range
(V dc)
nominal
(V dc)
max.
(A)
min.
(V dc)
VFM-10A
0 ~ 75
100
10
1,500
VFM-15C
0 ~ 75
100
15
1,500
VFM-20A
0 ~ 75
100
20
1,500
VFM-25C
0 ~ 36
50
25
1,500
1) for 100 ms
2) input to ground, output to ground
GENERAL
parameter
conditions/description
dimensions
VFM-10A:
VFM-15C:
VFM-20A:
VFM-25C:
min
nom
max
units
2.00x1.00x0.46 inch
50.8x25.4x11.7 mm
4.06x3.11x0.89 inch
103.2x79x22.7 mm
2.00x1.60x0.50 inch
50.8x40.6x12.7 mm
4.06x3.11x0.89 inch
103.2x79x22.7 mm
case material
VFM-10A/20A: black plastic
VFM-15C/25C: black coated steel
isolation voltage
input to ground, output to ground
1,500
isolation resistance
input to ground, output to ground
10
dc resistance
total for two legs
V dc

7
16
m
ENVIRONMENTAL
parameter
conditions/description
cooling
natural convection
min
operating temperature
max
units
-40
100
°C
100
°C
-40
100
°C
case temperature
storage temperature
20050 SW 112th Ave. Tualatin, Oregon 97062
phone 503.612.2300
nom
fax 503.612.2383 www.v-infinity.com
For more information, please visit the product page.
date 03/2010
page 2 of 7
DESCRIPTION: DC EMI FILTER
SERIES: VFM-XX
DRAWING (VFM-10A)
2.00 [50.8]
0.475 [12.06]
0.15 [3.8]
1.225 [31.12]
2
5
0.12 [3.2]
NOTE:Pin Size is ø0.04 inch (ø1.02 mm)
All Dimensions in inches (mm)
Tolerances: Inches: X.XX= ±0.02, X.XXX= ±0.010
Millimeters: X.X= ±0.5 , X.XX=±0.25
4
0.750 [19.05]
1
BOTTOM VIEW
PIN CONNECTION
1.00 [25.4]
3
Pin
Function
1
+V Input
2
-V Input
0.22 [5.6] min.
3
+V Output
4
-V Output
0.46 [11.7]
5
GND
0.040 [1.02]
SIDE VIEW
DRAWING (VFM-20A)
2.00 [50.8]
0.700 [17.78]
0.15 [3.8]
0.15 [3.8] 1.000 [25.40]
5
BOTTOM VIEW
0.25 [6.3]
6
1
0.200 [5.08]
0.200 [5.08]
7
0.200 [5.08]
9
2
8
0.200 [5.08]
3
0.200 [5.08]
0.150 [3.81]
0.200 [5.08]
1.60 [40.6]
4
DIMENSIONS:
NOTE:Pin Size is ø0.04 inch (ø1.02 mm)
All Dimensions in inches (mm)
Tolerances Inches: X.XX= ±0.02 , X.XXX= ±0.010
Millimeters: X.X= ±0.5 , X.XX=±0.25
0.040 [1.02]
0.22 [5.6] min.
SIDE VIEW
20050 SW 112th Ave. Tualatin, Oregon 97062
PIN CONNECTION
Pin
Function
1,2
+V Input
3,4
-V Input
5,6
+V Output
7,8
-V Output
9
GND
0.50 [12.7]
phone 503.612.2300
fax 503.612.2383 www.v-infinity.com
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date 03/2010
page 3 of 7
SERIES: VFM-XX
DESCRIPTION: DC EMI FILTER
[R
2.
25
]
2.92 [74.2]
2.16 [55.0]
1.51 [38.5]
3.70 [94.2]
CONVERTER
-Vin
+Vin
0.03 [1.0]
88
3.11 [79.0]
.0
0.89 [22.7]
POWER
+Vin -Vin GND
R0
2.79 [71.0]
4-
4-0.47 [12.0]
DRAWING (VFM-15C/25C)
3.15 [80.0]
20050 SW 112th Ave. Tualatin, Oregon 97062
phone 503.612.2300
fax 503.612.2383 www.v-infinity.com
For more information, please visit the product page.
date 03/2010
page 4 of 7
SERIES: VFM-XX
DESCRIPTION: DC EMI FILTER
VFM-10A INTERNAL SCHEMATIC
VFM-20A INTERNAL SCHEMATIC
VFM-15C/25C INTERNAL SCHEMATIC
20050 SW 112th Ave. Tualatin, Oregon 97062
phone 503.612.2300
fax 503.612.2383 www.v-infinity.com
For more information, please visit the product page.
date 03/2010
page 5 of 7
DESCRIPTION: DC EMI FILTER
SERIES: VFM-XX
INSERTION LOSS (VFM-10A)
COMMON MODE
DIFFERENTIAL MODE
˃
˃
ˀ˄˃
ˀ˄˃
ˀ˅˃
ˀ˅˃
ˀˆ˃
˚˴˼́
ˀˇ˃
dB
dB
ˀˆ˃
˚˴˼́
ˀˇ˃
ˀˈ˃
ˀˈ˃
ˀˉ˃
ˀˉ˃
ˀˊ˃
ˀˊ˃
ˀˋ˃
ˀˋ˃
ˀˌ˃
ˀˌ˃
˄˃˃
˄˃˃˃
KHz
˄˃˃˃˃
˄˃˃
˄˃˃˃˃˃
˄˃˃˃
˄˃˃˃˃
KHz
˄˃˃˃˃˃
INSERTION LOSS (VFM-15C)
COMMON MODE
DIFFERENTIAL MODE
˃
˃
ˀ˄˃
ˀ˅˃
ˀ˄˃
ˀˆ˃
ˀ˅˃
dB
dB
ˀˇ˃
˚˴˼́
˚˴˼́
ˀˈ˃
ˀˉ˃
ˀˊ˃
ˀˋ˃
ˀˆ˃
ˀˌ˃
ˀ˄˃˃
ˀˇ˃
ˀ˄˄˃
˄˃˃
˄˃˃˃
˄˃˃˃˃
˄˃˃˃˃˃
˄˃˃
KHz
˄˃˃˃
˄˃˃˃˃
˄˃˃˃˃˃
KHz
INSERTION LOSS (VFM-20A)
COMMON MODE
DIFFERENTIAL MODE
0
0
-10
-10
-20
-20
-30
Gain
-40
dB
dB
-30
-50
-60
-60
-70
-70
-80
-80
-90
-90
100
Gain
-40
-50
1000
10000
100000
100
KHz
20050 SW 112th Ave. Tualatin, Oregon 97062
phone 503.612.2300
1000
10000
100000
KHz
fax 503.612.2383 www.v-infinity.com
For more information, please visit the product page.
date 03/2010
page 6 of 7
DESCRIPTION: DC EMI FILTER
SERIES: VFM-XX
INSERTION LOSS (VFM-25C)
COMMON MODE
DIFFERENTIAL MODE
0
0
-10
-5
-20
-30
-10
Gain
dB
dB
-40
-15
-20
Gain
-50
-60
-70
-25
-80
-90
-30
-100
-35
-110
100
1000
10000
100000
100
KHz
1000
10000
100000
KHz
APPLICATION NOTES
The following application note shows EN55022 class B conducted emissions tests for the VFM-XX series EMI filters in series with a VHK or VHB series DC/DC converter and a purely resistive load. This information is for example only. Actual
results may vary.
1) EMI Filtering - Connection Diagram
Filter Model
(VFM-XX)
VFM-10A
VFM-15C
VFM-20A
VFM-25C
DC-DC Converter Model
(VHXXXW)
C1
C2
CY1
CY2
CY3
CY4
VHB50W-Q24-S5
47 μF/100 V KY
•••
•••
•••
•••
•••
VHB50W-Q48-S5
47 μF/100 V KY
•••
•••
•••
•••
•••
VHK200W
•••
•••
•••
•••
•••
•••
VHB150W-Q24-S5
47 μF/100 V KY
220 μF/100 V KY
1000 pF / 2 KV
•••
1000 pF / 2 KV
560 pF/2 KV
VHB150W-Q48-S5
•••
220 μF/100 V KY
1000 pF / 2 KV
•••
1000 pF / 2 KV
560 pF/2 KV
VHK200W
•••
•••
•••
•••
•••
•••
DC-DC
POWER
SUPPLY
SPECTRUM
ANALYZER
LISN
C1
VFM-XX
GND
C2
VHBXXW
CY4
CY3
CY1
CY2
LOAD
20050 SW 112th Ave. Tualatin, Oregon 97062
phone 503.612.2300
fax 503.612.2383 www.v-infinity.com
For more information, please visit the product page.
date 03/2010
page 7 of 7
SERIES: VFM-XX
DESCRIPTION: DC EMI FILTER
2) Conducted Emission Measurement
Filter Model: VFM-10A
Filter Model: VFM-15C
Filter Model: VFM-20A
Filter Model: VFM-25C
DC-DC Converter Model: VHB50W-Q24-S5
Input Voltage: 12 V dc
DC-DC Converter Model: VHB150W-Q24-S5
Input Voltage: 12 V dc
20050 SW 112th Ave. Tualatin, Oregon 97062
DC-DC Converter Model: VHK200W-Q48-S12
Input Voltage: 48 V dc
DC-DC Converter Model: VHK200W-Q24-S12
Input Voltage: 24 V dc
phone 503.612.2300
fax 503.612.2383 www.v-infinity.com
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