SERIES
PTHFxxxR-SM
PTKMxxxR-SM
PTHF-SM
PTKM-SM
Surface Mount Toroidal Power Chokes
Actual Size (Max.)
(PTHF 100-50SM)
• Excellent electromagnetic shielding performance for
commercial and industrial applications
• For higher saturation levels use Series PTHF-SM
• Current rating from 0.92 to 7.36 amps
• Inductance values from 10 µH to 330 µH
Marking API; ether PTHF or PTKM; remainder of part
number.
Example: PTKM50R-50SM
API
PTHF
50R-50SM
Notes 1) Rated current is based on a 35°C temperature
rise at an ambient temperature of 90°C. 2) Incremental
current is the approximate value that will cause a
percentage drop in inductance as indicated in the table.
D
A
S
H
N
U
MB
P
PTHF25-50SM
P
PTHF75-50SM
P
PTHF150-50SM
PTHF200-50SM
PTHF250-50SM
PTHF330-50SM
PTHF10-40SM
PTHF25-40SM
PTHF50-40SM
PTHF75-40SM
PTHF100-40SM
PTHF150-40SM
PTHF200-40SM
PTHF250-40SM
PTHF10-30SM
PTHF25-30SM
PTHF50-30SM
PTHF75-30SM
P
PTHF150-30SM
PTHF200-30SM
P
PTHF10-180SM
PTHF25-180SM
PTHF50-180SM
PTHF75-180SM
PTHF100-180SM
PTKM10-50SM
PTKM25-50SM
PTKM50-50SM
PTKM75-50SM
PTKM100-50SM
PTKM150-50SM
PTKM200-50SM
PTKM250-50SM
PTKM330-50SM
PTKM10-40SM
PTKM25-40SM
PTKM50-40SM
PTKM75-40SM
PTKM100-40SM
PTKM150-40SM
PTKM200-40SM
PTKM250-40SM
PTKM10-30SM
PTKM25-30SM
PTKM50-30SM
PTKM75-30SM
PTKM100-30SM
PTKM150-30SM
PTKM200-30SM
PTKM250-30SM
PTKM10-180SM
PTKM25-180SM
PTKM50-180SM
PTKM75-180SM
PTKM100-180SM
C
IN
D
U
C
T
A
N
C
(
µ
H
E
R
THF10-50SM
THF50-50SM
THF100-50SM
THF100-30SM
THF250-30SM
)
*
U
R
R
EN
T
R
AT
E @ 1
±
IN
G
A
k
1
0
H
%
z
SERIES PTHF-SM HIGH SATURATION CORE
10
25
50
75
100
150
200
250
330
10
25
50
75
100
150
200
250
10
25
50
75
100
150
200
250
10
25
50
75
100
SERIES PTKM-SM FERROUS ALLOY CORE
10
25
50
75
100
150
200
250
330
10
25
50
75
100
150
200
250
10
25
50
75
100
150
200
250
10
25
50
75
100
In
c
∆
-
L
1
0
D
%
C
7.36
5.20
3.93
3.47
3.14
2.33
1.97
1.84
1.69
4.84
3.38
1.90
1.69
1.60
1.45
1.12
1.05
2.56
2.16
1.81
1.62
1.50
1.33
1.04
0.96
1.60
1.33
1.12
0.99
0.92
7.36
5.20
3.93
3.47
3.14
2.33
1.97
1.84
1.69
4.84
3.38
1.90
1.69
1.60
1.45
1.12
1.05
2.56
2.16
1.81
1.62
1.50
1.33
1.04
0.96
1.60
1.33
1.12
0.99
0.92
I A
MA
XIMU
In
c
∆
-
L 2
I A
0
D
%
C
6.00
3.60
2.00
1.60
1.50
1.20
1.00
0.90
0.80
3.80
2.20
1.70
1.30
1.10
0.90
0.70
0.70
2.20
1.40
1.20
0.80
0.60
0.60
0.50
0.50
0.90
0.60
0.40
0.30
0.30
1.70
1.00
0.70
0.60
0.50
0.40
0.35
0.31
0.27
1.30
0.70
0.56
0.45
0.40
0.33
0.30
0.25
0.80
0.50
0.35
0.28
0.23
0.20
0.17
0.15
0.43
0.25
0.18
0.15
0.13
D
C
D
C
R
ESISTANCE
M (
O
H
8.70
5.30
3.10
2.50
2.20
1.80
1.60
1.40
1.20
5.70
3.50
2.50
2.00
1.70
1.40
1.10
1.10
3.40
2.10
1.30
1.20
1.00
1.00
0.70
0.70
1.40
0.90
0.60
0.50
0.40
3.30
1.90
1.30
1.10
0.96
0.78
0.65
0.59
0.50
2.50
1.30
1.00
0.86
0.76
0.60
0.56
0.48
1.60
0.96
0.68
0.54
0.50
0.40
0.34
0.30
0.86
0.50
0.35
0.28
0.25
MS)
S
RF MINIMUM (MHz)
0.01
0.02
0.04
0.05
0.06
0.10
0.14
0.16
0.19
0.02
0.04
0.11
0.14
0.16
0.19
0.32
0.36
0.05
0.07
0.10
0.13
0.15
0.19
0.30
0.36
0.10
0.15
0.21
0.26
0.30
0.01
0.02
0.04
0.05
0.06
0.10
0.14
0.16
0.19
0.02
0.04
0.11
0.14
0.16
0.19
0.32
0.36
0.05
0.07
0.10
0.13
0.15
0.19
0.30
0.36
0.10
0.15
0.21
0.26
0.30
Power Inductors
35.0
10.0
7.0
5.0
4.0
3.0
2.0
1.5
1.0
35.0
20.0
13.0
9.0
6.0
3.5
3.0
2.5
35.0
25.0
10.0
7.0
6.0
3.5
3.0
3.0
35.0
30.0
10.0
8.0
6.0
35.0
10.0
7.0
5.0
4.0
3.0
2.0
1.5
1.0
35.0
20.0
13.0
9.0
6.0
3.5
3.0
2.5
35.0
25.0
10.0
7.0
6.0
3.5
3.0
3.0
35.0
30.0
10.0
8.0
6.0
*Complete part # must include series # PLUS the dash #
For surface finish information, refer to www.delevanfinishes.com
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan.com • www.delevan.com
1/2009
Power Inductors
SERIES
Surface Mount Toroidal Power Chokes
PHYSICAL PARAMETERS
PTHF-SM & PTKM-SM
A Max.
P
ART
BER*
NUM
es
ch
In
m
m
PTHFxxxR-SM & PTKMxxxR-SM
Inches
B Max.
mm
Inches
C Max.
mm
Inches
D Nom.
mm
Inches
E Nom.
mm
PT**10-50SM
PT**25-50SM
PT**50-50SM
PT**75-50SM
PT**100-50SM
PT**150-50SM
PT**200-50SM
PT**250-50SM
PT**330-50SM
PT**10-40SM
PT**25-40SM
PT**50-40SM
PT**75-40SM
PT**100-40SM
PT**150-40SM
PT**200-40SM
PT**250-40SM
PT**10-30SM
PT**25-30SM
PT**50-30SM
PT**75-30SM
PT**100-30SM
PT**150-30SM
PT**200-30SM
PT**250-30SM
PT**10-180SM
PT**25-180SM
PT**50-180SM
PT**75-180SM
PT**100-180SM
0.700
0.700
0.700
0.700
0.700
0.700
0.700
0.700
0.700
0.570
0.570
0.570
0.570
0.570
0.570
0.570
0.570
0.440
0.440
0.440
0.440
0.440
0.440
0.440
0.440
0.340
0.340
0.340
0.340
0.340
17.78
17.78
17.78
17.78
17.78
17.78
17.78
17.78
17.78
14.48
14.48
14.48
14.48
14.48
14.48
14.48
14.48
11.18
11.18
11.18
11.18
11.18
11.18
11.18
11.18
8.636
8.636
8.636
8.636
8.636
0.670
0.670
0.670
0.670
0.670
0.670
0.670
0.670
0.670
0.560
0.560
0.560
0.560
0.560
0.560
0.560
0.560
0.440
0.440
0.440
0.440
0.440
0.440
0.440
0.440
0.340
0.340
0.340
0.340
0.340
17.02
17.02
17.02
17.02
17.02
17.02
17.02
17.02
17.02
14.22
14.22
14.22
14.22
14.22
14.22
14.22
14.22
11.18
11.18
11.18
11.18
11.18
11.18
11.18
11.18
8.64
8.64
8.64
8.64
8.64
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.300
0.300
0.300
0.300
0.300
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
7.62
7.62
7.62
7.62
7.62
0.600
0.600
0.600
0.600
0.600
0.600
0.600
0.600
0.600
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.300
0.300
0.300
0.300
0.300
15.24
15.24
15.24
15.24
15.24
15.24
15.24
15.24
15.24
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
7.62
7.62
7.62
7.62
7.62
0.600
0.600
0.600
0.600
0.600
0.600
0.600
0.600
0.600
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.300
0.300
0.300
0.300
0.300
15.24
15.24
15.24
15.24
15.24
15.24
15.24
15.24
15.24
12.70
12.70
12.70
12.70
12.70
12.70
12.70
12.70
10.16
10.16
10.16
10.16
10.16
10.16
10.16
10.16
7.62
7.62
7.62
7.62
7.62
**Insert HF or KM for complete Part Number
*Complete part # must include series # PLUS the dash #
For surface finish information, refer to www.delevanfinishes.com
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan.com • www.delevan.com
1/2009
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