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
Coil Dia. Lead Dia.
In. Gauge
0.63 14
0.60 16
0.58 18
0.57 20
0.56 20
0.54 20
0.71 18
0.69 18
0.65 20
0.61 20
0.59 20
EMI/RFI CHOKES
?  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.
Part No.
1538M01
1538M02
1538M03
1538M04
1538M05
1538M06
1538M07
1538M08
1538M09
1538M10
1538M11
1538M12
1538M13
1538M14
1538M15
1538M16
1538M17
1538M18
1538M19
1538M20
1538M21
1538M22
1538M23
1538M24
Inductance L
uH +/- 10%
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
?
CANADA
Guelph, Ontario (519) 822-2960
St. Laurent, Quebec (514) 343-9010
USA
Cheektowaga, NY (716) 630-7030
www.hammondmfg.com
52
EUROPE
Basingstoke, UK 01256 812812
AUSTRALIA
Queenstown, Australia 61-8-8240-2244
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