Series PTHF & PTKM
Toroidal Power Chokes
SERIES PTHF HIGH SATURATION CORE
PTHF10-50
PTHF25-50
PTHF50-50
PTHF75-50
10
25
50
7.36
5.20
3.93
3.47
3.14
2.33
1.97
1.84
1.69
8.27
6.34
4.77
3.90
3.24
2.68
2.07
14.50
9.80
6.90
5.90
4.90
4.50
3.50
2.60
2.10
12.80
9.90
8.00
8.00
6.50
5.00
3.40
3.00
2.40
6.0
3.6
2.0
1.6
1.5
1.2
1.0
0.9
0.8
9.0
7.0
3.9
3.9
3.4
3.3
2.2
15.0
11.0
8.3
6.7
6.5
4.2
4.0
2.7
1.8
13.5
10.8
8.0
7.1
6.0
4.6
3.1
2.7
2.3
8.7
5.3
3.1
2.5
2.2
1.8
1.6
1.4
1.2
14.0
10.5
6.0
5.8
4.7
4.8
3.2
20.0
16.0
12.0
9.1
0.010
0.020
0.035
0.045
0.055
0.100
0.140
0.160
0.190
0.010
0.017
0.030
0.045
0.065
0.095
0.160
0.008
0.011
0.022
0.030
0.044
0.052
0.088
0.160
0.240
0.012
0.016
0.023
0.023
0.035
0.060
0.131
0.160
0.235
35.0
10.0
7.0
5.0
4.0
2.0
1.7
1.5
1.0
20.0
8.0
4.0
3.0
2.0
1.5
1.0
20.0
8.0
4.0
3.0
2.0
1.0
1.0
0.8
0.6
8.0
4.0
3.0
2.0
1.0
1.0
0.8
0.6
0.4
75
PTHF100-50
PTHF150-50
PTHF200-50
PTHF250-50
PTHF330-50
PTHF10-121
PTHF25-121
PTHF50-121
PTHF75-121
PTHF100-121
PTHF150-121
PTHF250-121
PTHF10-59
100
150
200
250
330
10
25
50
75
100
150
250
10
25
50
PTHF25-59
PTHF50-59
PTHF75-59
75
PTHF100-59
PTHF150-59
PTHF250-59
PTHF500-59
PTHF750-59
PTHF25-894
PTHF50-894
PTHF75-894
PTHF100-894
PTHF150-894
PTHF250-894
PTHF500-894
PTHF750-894
PTHF1000-894
100
150
250
500
750
25
8.2
6.0
5.6
3.8
2.7
20.0
15.2
12.0
10.6
9.0
6.8
4.6
Horizontal or Vertical Mounting
50
75
Excellent electromagnetic shielding
100
150
250
500
750
1000
Applications Use Series PTHF for high DC
saturation applications; use Series PTKM for low
AC core loss applications.
4.0
3.5
Inductance tested at 1 KHz
DC Resistance at 25°C
SERIES PTKM FERROUS ALLOY CORE
PTKM10-50
PTKM25-50
PTKM50-50
PTKM75-50
10
25
50
7.36
5.20
3.93
3.47
3.14
2.33
1.97
1.84
1.69
8.27
6.34
4.77
3.90
3.24
2.68
2.07
14.50
9.80
6.90
5.90
4.90
4.50
3.50
2.60
2.10
12.80
9.90
8.00
8.00
6.50
5.00
3.40
3.00
2.40
1.70
1.00
0.70
0.60
0.50
0.40
0.35
0.31
0.27
5.30
3.30
2.30
1.80
1.60
1.30
0.90
7.60
4.70
3.30
3.00
2.40
1.90
1.50
1.10
0.90
6.60
4.20
3.70
3.50
2.30
1.90
1.40
1.20
1.00
3.30
1.90
1.30
1.10
0.96
0.78
0.65
0.59
0.50
9.10
5.70
4.00
3.10
2.80
2.20
1.70
13.00
8.30
5.70
4.90
4.20
3.40
2.70
1.80
1.60
11.00
7.40
6.40
6.00
4.30
3.20
2.50
2.10
1.80
0.010
0.020
0.035
0.045
0.055
0.100
0.140
0.160
0.190
0.010
0.017
0.030
0.045
0.065
0.095
0.160
0.008
0.011
0.022
0.030
0.044
0.052
0.088
0.160
0.240
0.012
0.016
0.023
0.023
0.035
0.060
0.131
0.160
0.235
35.0
10.0
7.0
5.0
4.0
2.0
1.7
1.5
1.0
20.0
8.0
4.0
3.0
2.0
1.5
1.0
20.0
8.0
4.0
3.0
2.0
1.0
1.0
0.8
0.6
8.0
4.0
3.0
2.0
1.0
1.0
0.8
0.6
0.4
Rated Idc based upon 40°C maximum rise from
90°C ambient with 0 Arms
75
PTKM100-50
PTKM150-50
PTKM200-50
PTKM250-50
PTKM330-50
PTKM10-121
PTKM25-121
PTKM50-121
PTKM75-121
PTKM100-121
PTKM150-121
PTKM250-121
PTKM10-59
100
150
200
250
330
10
25
50
75
100
150
250
10
25
50
Self Leads Solder coated along entire length
Mounting Toroids can be provided in a vertical or
horizontal mount style. Suffix Part Number with “H”
for horizontal mount.
dI Incremental Current is the value indicated in the
table that will cause an approximate percentage
drop in inductance
Physical Parameters on Next Page
PTKM25-59
PTKM50-59
PTKM75-59
75
PTKM100-59
PTKM150-59
PTKM250-59
PTKM500-59
PTKM750-59
PTKM25-894
PTKM50-894
PTKM75-894
PTKM100-894
PTKM150-894
PTKM250-894
PTKM500-894
PTKM750-894
PTKM1000-894
100
150
250
500
750
25
50
75
100
150
250
500
750
1000
PAGE
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2/2002
96