12
Common Mode Chokes
For DC and single-phase AC power lines
●Single-phase FM coils
FM series single-phase common mode chokes with FT-1KM
KN cores (p. 30) are compact in size and have excellent
electromagnetic noise suppression properties.
Item
Rated voltage
Insulation voltage rating
Insulation resistance
Insulation grade
Temperature rise
Operating temperature range
Specification
AC250V or DC250V
AC1.5kV for 1min. or AC1.8kV for 3 sec.
Over 100MΩ after applying DC500V for 1 min.
Class E (120 ºC)
45 ºC *
-40 ºC – +120 ºC (including temperature rise)
Table 3. Standard Specifications
P/N
FM10G752MB
FM15G462MB
FM20G242MB
FM25G142MB
FM10I113MB
FM15I682MB
FM20I382MB
FM25I292MB
FM10G752MYB
FM15G462MYB
FM20G242MYB
FM25G142MYB
FM10I113MYB
FM15I682MYB
FM20I382MYB
FM25I292MYB
FM20S562MYB
FM30S192MYB
FM40S122MYB
Product
code
F1AH0249
F1AH0250
F1AH0251
F1AH0252
F1AH0253
F1AH0254
F1AH0255
F1AH0256
F1AH0257
F1AH0258
F1AH0259
F1AH0260
F1AH0261
F1AH0262
F1AH0263
F1AH0264
F1AH0265
F1AH0266
F1AH0267
Rated
current
(A)
10
15
20
25
10
15
20
25
10
15
20
25
10
15
20
25
20
30
40
A
MAX.
50
51
52
54
50
53
54
55
55
55
55
55
55
55
55
55
71
73
73
B
MAX.
32
34
35
37
37
39
42
43
34
37
38
40
40
42
45
46
41
42
42
F
Ref.
7
7
7
7
10
10
10
10
27
27
27
27
27
27
27
27
40
40
40
G
Ref.
25
25
25
25
32
32
32
32
37
37
37
37
37
37
37
37
50
50
50
Weight
(g)
TYP.
107
123
117
120
146
168
160
166
110
126
120
123
151
170
162
168
295
273
253
20
10
6
4
25
12
7
5
20
10
6
4
25
12
7
5
9
4
2
Wire
Diameter
(mm)
1.4
1.8
2.0
2.3
1.5
1.9
2.1
2.3
1.4
1.8
2.0
2.3
1.5
1.9
2.1
2.3
2.4
2.0x2
1.9x3
10kHz
MIN.
29.3
18.0
9.4
5.6
44.4
26.9
13.7
10.3
29.3
18.0
9.4
5.6
44.4
26.9
13.7
10.3
22.5
7.5
5.0
100kHz
MIN.
7.5
4.6
2.4
1.4
10.6
6.8
3.8
2.9
7.5
4.6
2.4
1.4
10.6
6.8
3.8
2.9
5.6
1.9
1.2
Finished dimensions (mm)
• Part numbers with the last digit as “MB” are vertical type (Figure 12), and part numbers with the last digit as “MYB” are Horizontal type (Figure 13).
• UL94V-0 certified resin is used for the case and the base plate.
• Custom made coils are also available.
• The above specifications are in accordance with Electrical Appliance and Material Control Law, UL, CSA and IEC standards.
• No Ozone Layer Depleting Chemicals are used in these products or in their manufacturing process.
* Note 1: The temperature rise in Table 1 is a projected value based on temperature increase by the heat from DC resistance of the coil when the rated current (DC
or 50/60Hz) in Table 2 is conducted.
* Note 2: The temperature rise is affected by the mounting condition on the circuit board and the amount of harmonic distortion on the load current. Please make
sure that the temperatures of the coil and the terminals are not exceeded the operating temperature range.
Table 4. Product code, part number and specifications
L (mH)
Single-phase FM coils
DC
Resistance
(mΩ)
MAX.
13
Single-phase FM coils
Figure12.FM□□□□□□MB
Figure13.FM□□S□□□MYB
Ａ
Ｆ
15±5
Ｇ
Ｂ
8MAX.
Ｂ15±5Ａ
Ｇ
Ｆ
8MAX.
Figure14.Circuitdiagram
13
24
Figure15.FrequencydependenceofimpedanceforFM□□G□□□MB
0.01
0.1
1
10
100
110100 1000 10000 100000
Frequency(kHz)
Impedance(kΩ）
FM10G752MB
FM15G462MB
FM20G242MB
FM25G142MB
qe
erqw qe wr
wr
qe qe
ww
wr
qe
rr
Polarity
14
Figure16.FrequencydependenceofimpedanceforFM□□I□□□MB
Figure17.FrequencydependenceofimpedanceforFM□□S□□□MYB
Common Mode Chokes
For DC and single-phase AC power lines
0.1
1
10
100
110100 1000 10000 100000
Frequency(kHz)
Impedance(kΩ）
FM10I113MB
FM15I682MB
FM20I382MB
FM25I292MB
0.01
0.1
1
10
100
110100 1000 10000 100000
Frequency（kHz）
Impedance(kΩ）
FM20S562MYB
FM30S192MYB
FM40S122MYB
Single-phase FM-A coils