R.F. CHOKES (1537-1538 Series)
HIGH CURRENT CHOKES
• Large ferrite core for extended saturation point, optimum frequency range .01-2 Mhz.
• 1.5" long leads (+/- 0.1")
• Test frequency 1 Khz.
• Core length 1.25". Coil is covered with vinyl shrink sleeve.
Part No.
1537E
1537F
1537G
1537H
1537J
1537K
1537L
1537M
1537N
1537P
1537R
Inductance
+/- 5% uH
10
20
30
40
50
75
100
250
500
750
1000
Min. Q
4.5
6.5
5.3
5.2
3.4
3.2
10.5
12.0
11.6
10.0
7.4
D.C.
Resistance
Ohms
0.006
0.013
0.024
0.039
0.064
0.128
0.05
0.114
0.26
0.465
0.83
Max. D.C.
Current
Amps
20
12.5
8
5
3.2
2
8
5
3.2
2
1.25
Chokes
Coil Dia. Lead Dia.
In.
Gauge
0.63
0.60
0.58
0.57
0.56
0.54
0.71
0.69
0.65
0.61
0.59
14
16
18
20
20
20
18
18
20
20
20
• High saturation flux density ferrite rods.
• 1" long leads, tinned to within 1/8" of body.
• Ideal for filtering or energy storage inductors.
• Inductance measured at @ 1Khz. with 0 amps. D.C.
current, typical inductance change is less than 5% @ twice
rated current.
EMI/RFI CHOKES
Inductance L
Part No.
uH +/- 10%
1538M01
1538M02
1538M03
1538M04
1538M05
1538M06
1538M07
1538M08
1538M09
1538M10
1538M11
1538M12
1538M13
1538M14
1538M15
1538M16
1538M17
1538M18
1538M19
1538M20
1538M21
1538M22
1538M23
1538M24
5
10
27
50
100
150
250
5
10
27
50
68
100
150
5
10
27
50
68
100
5
10
27
50
Fo
Min.
MHz
32.4
21.6
5.6
3.44
2.08
1.84
1.1
27.2
21.7
5.6
4.4
3.6
2.4
1.6
34.7
20
6.2
3.8
3.2
2.2
30.8
20
6.4
3.5
R - D.C.
Max.
Ohms
0.013
0.017
0.03
0.04
0.061
0.069
0.089
0.009
0.012
0.022
0.028
0.034
0.038
0.046
0.006
0.008
0.014
0.02
0.023
0.027
0.004
0.006
0.010
0.013
I - D.C.
Max.
Amps
10
9
7
5.6
4.9
4.6
4
14
12
9
8
7.3
6.8
6.3
19
16
12.5
10.5
10
10
23
20
15
15
Max.
Dim. A
0.88
1.12
0.88
0.88
1.12
1.38
1.62
0.88
1.12
0.88
1.12
1.12
1.38
1.62
1.12
1.38
1.12
1.38
1.38
1.62
1.38
1.69
1.38
1.62
Max.
Dim. B
0.63
0.63
0.81
0.81
0.81
0.81
0.81
0.64
0.64
0.88
0.88
0.88
0.88
0.88
0.69
0.94
0.94
0.94
0.94
0.94
0.72
0.72
1.00
1.00
Typ.
Dim. C
0.50
0.69
0.44
0.75
0.94
1.06
1.31
0.75
1.00
0.56
0.75
0.88
1.00
1.25
0.81
1.22
0.69
0.94
1.12
1.31
0.94
1.50
0.94
1.12
Typ.
Dim. D
0.042
0.042
0.042
0.042
0.042
0.042
0.042
0.053
0.053
0.053
0.053
0.053
0.053
0.053
0.065
0.065
0.065
0.065
0.065
0.065
0.082
0.082
0.082
0.082
Guelph, Ontario (519) 822-2960
St. Laurent, Quebec (514) 343-9010
©
Cheektowaga, NY (716) 630-7030
CANADA
USA
www.hammondmfg.com
Basingstoke, UK 01256 812812
Queenstown, Australia 61-8-8240-2244
EUROPE
52
AUSTRALIA
EMI / RFI (1539 Series)
Chokes
EMI/RFI CHOKES
• High saturation flux density ferrite bobbins.
• 1" long leads, tinned to within 1/8" of body.
• Ideal for filtering or energy storage inductors.
• Inductance measured at @ 1Khz. with 0 amps. D.C. current, typical inductance change is less than 5% @ twice
rated current.
Part No.
1539M01
1539M02
1539M03
1539M04
1539M05
1539M06
1539M07
1539M08
1539M09
1539M10
1539M11
1539M12
1539M13
1539M14
1539M15
1539M16
1539M17
1539M18
1539M19
1539M20
1539M21
1539M22
1539M23
1539M24
1539M25
1539M26
1539M27
1539M28
1539M29
1539M30
1539M31
1539M32
Inductance L
uH +/- 10%
5
10
25
50
100
250
500
1000
2500
5
10
25
50
100
250
500
1000
2500
50
100
250
500
1000
2500
5000
100
250
500
1000
2500
5000
10000
Fo
Min.
MHz
24.7
11.4
6.2
4.1
2.4
1.6
1
0.7
0.43
26.7
15.6
5.2
3.6
2.2
1.2
0.89
0.58
0.35
3.4
2
1.3
0.9
0.54
0.34
0.24
1.8
1
0.7
0.44
0.26
0.19
0.13
R - D.C.
Max.
Ohms
0.007
0.008
0.023
0.034
0.072
0.173
0.378
0.801
2.04
0.005
0.006
0.009
0.017
0.034
0.083
0.129
0.279
0.69
0.012
0.025
0.059
0.09
0.195
0.499
1.08
0.018
0.040
0.085
0.183
0.464
0.714
1.55
I - D.C.
Max.
Amps
15
14
8
6.6
4.5
2.9
2
1.3
0.85
20
17
14
10
7
4.6
3.7
2.5
1.6
14
9.8
6.4
5
3.5
2.2
1.5
14
9
6.5
4.4
2.8
2.2
1.5
Max.
Dim. A
0.83
0.83
0.83
0.83
0.83
0.83
0.83
0.83
0.83
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.22
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
1.50
Max.
Dim. B
0.91
0.91
0.91
0.91
0.91
0.91
0.91
0.91
0.91
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.11
1.50
1.50
1.50
1.50
1.50
1.50
1.50
Typ.
Dim. C
0.59
0.60
0.57
0.65
0.69
0.65
0.68
0.66
0.71
0.94
0.95
0.93
0.99
0.85
0.97
1.12
1.05
1.05
1.23
1.12
1.10
1.14
1.36
1.32
1.27
1.18
1.12
1.06
1.23
1.21
1.32
1.25
Typ.
Dim. D
0.065
0.065
0.042
0.042
0.042
0.042
0.042
0.042
0.042
0.082
0.082
0.082
0.065
0.053
0.053
0.053
0.053
0.053
0.082
0.065
0.053
0.053
0.053
0.053
0.053
0.082
0.065
0.053
0.053
0.053
0.053
0.053
Basingstoke, UK 01256 812812
Queenstown, Australia 61-8-8240-2244
EUROPE
www.hammondmfg.com
AUSTRALIA
Guelph, Ontario (519) 822-2960
St. Laurent, Quebec (514) 343-9010
Cheektowaga, NY (716) 630-7030
CANADA
USA
53
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