SENDUST
TOROIDAL
POWER INDUCTORS
FEATURES
*
Sendust Powdered Iron Toroidal Construction.
*
Optimized For Use as High Frequency DC Chokes.
*
Temp Rise Data: Ripple Currents < 10% @ 100KHz
*
Low Cost Self Lead Construction.
*
Lower AC Losses Than Normal Powdered iron
NOTES:
Temp Rise T1 & T2 are calculated.
1) Ln = Nominal Ind. @ 0.0Adc
L1 = Nominal Ind. @ I1 Adc, T1 Temp Rise
L2 = Nominal Ind. @ I2 Adc, T2 Temp Rise
2) I1 Represents a 1-20% Drop in Ln
I2 Represents a 20-40% Drop in Ln
ELECTRICAL SPECIFICATIONS AT 25
O
C - OPERATING TEMPERTURE RANGE -55
O
C TO +105
O
C
PART
NUMBER
Ln
(µH)
µ
DCR
(Ohm)
0.024
0.030
0.054
0.102
0.091
0.171
0.008
0.012
0.032
0.043
0.053
0.053
0.005
0.006
0.010
0.021
0.026
0.030
0.037
0.004
0.010
0.013
0.020
0.025
0.006
0.027
0.009
0.0023
T2
T1
L1 @ I1
L2 @ I2
O
(dc A) (
O
C)
µ
(µH) (dc A) ( C) (µH)
µ
10
18
42
82
127
210
9
17
37
79
117
205
9
16
36
80
124
154
258
18
41
78
128
168
40
167
60
9.4
1
1
1
1
1
1
2
2
2
2
2
2
5
5
5
5
5
5
5
7
7
7
7
7
10
10
12
25
12
9
10
12
6
9
6
5
17
9
8
5
6
6
9
8
8
9
11
5
8
8
7
8
7
26
14
26
8
13
31
57
96
154
7
12
22
53
80
150
7
12
20
57
90
108
194
13
29
54
96
120
33
122
55
8.7
2
2
2
2
2
2
4
4
4
4
4
4
10
10
10
10
10
10
10
14
14
14
14
14
16
16
16
30
47
36
39
46
24
33
23
20
66
33
30
21
22
22
36
33
30
35
32
19
29
30
28
32
18
50
20
32
REF. DIMENSIONS IN INCHES
A
.31
.38
.48
.59
.76
.92
.51
.63
.60
.95
1.06
1.24
C
.16
.18
.21
.25
.32
.32
.24
.28
.26
.34
.40
.56
VT/B
.14
.16
.19
.23
.30
.30
.21
.25
.24
.31
.36
.52
.33
.39
.39
.51
.69
.69
.84
.56
.53
.70
.86
.86
.72
.85
.88
.75
HT/B PIN OD
.29
.36
.46
.57
.74
.90
.48
.59
.58
.92
1.03
1.20
.94
1.05
1.05
1.61
1.79
1.79
2.10
1.24
1.63
1.80
2.10
2.10
1.82
2.10
2.12
1.85
.014
.016
.016
.016
.020
.018
.025
.032
.0225
.0285
.0285
.032
.051
.051
.051
.051
.050
.051
.051
.064
.064
.064
.064
.064
.064
.057
.080
.100
VTK-01001
10
VTK-02001
20
VTK-05001
50
VTK-10001 100
VTK-15001 150
VTK-25001 250
VTK-01002
10
VTK-02002
20
VTK-05002
50
VTK-10002 100
VTK-15002 150
VTK-25002 250
VTK-01005
VTK-02005
VTK-05005
VTK-10005
VTK-15005
VTK-20005
VTK-30005
10
20
50
100
150
200
312
1.00
.39
1.11
.45
1.11
.45
1.67
.57
1.85
.75
1.85
.75
2.18 1.00
1.32
1.70
1.88
2.18
2.18
.63
.60
.78
.95
.95
VTK-02007
20
VTK-05007
50
VTK-10007 100
VTK-15007 150
VTK-20007 200
VTK-05010
50
VTK-25010 250
VTK-07012
VTK-01025
70
12
1.91
.81
2.19 1.10
2.21
2.25
.98
.95
Specifications subject to change without notice.
PM-DCXXXXX 9/2000
20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630
•
TEL: (949) 452-0511
•
FAX: (949) 452-0512
•
http://www.premiermag.com
1
SENDUST
TOROIDAL
POWER INDUCTORS
FEATURES
*
Sendust Powdered Iron Toroidal Construction.
*
Optimized For Use as High Frequency DC Chokes.
*
Temp Rise Data: Ripple Currents < 10% @ 100KHz
*
Low Cost Self Lead Construction.
*
Lower AC Losses Than Normal Powdered iron
NOTES:
Temp Rise T1 & T2 are calculated.
1) Ln = Nominal Ind. @ 0.0Adc
L1 = Nominal Ind. @ I1 Adc, T1 Temp Rise
L2 = Nominal Ind. @ I2 Adc, T2 Temp Rise
2) I1 Represents a 1-20% Drop in Ln
I2 Represents a 20-40% Drop in Ln
ELECTRICAL SPECIFICATIONS AT 25
O
C - OPERATING TEMPERTURE RANGE -55
O
C TO +105
O
C
PART
NUMBER
VTK-00001
VTK-00002
VTK-00003
VTK-00004
VTK-00005
VTK-00006
VTK-00007
VTK-00008
VTK-00009
Ln
(µH)
µ
10
25
50
75
100
150
200
250
330
Rate DCR
L1 @ I1 T1
IDC (Ohm) (µH) (dc A) (
O
C)
µ
7.37
5.20
3.95
3.50
3.15
2.35
1.98
1.85
1.70
0.010
0.020
0.035
0.045
0.055
0.100
0.140
0.160
0.190
9.0
22.5
45.0
67.5
90.0
135.0
180.0
225.0
297.0
1.7
1.00
0.70
0.60
0.50
0.40
0.35
0.30
0.27
15
15
15
15
15
15
15
15
15
T2
L2 @ I2
(µH) (dc A) (
O
C) A
µ
8.0
20.0
40.0
60.0
80.0
120.0
160.0
200
264
3.3
1.9
1.3
1.1
0.95
0.75
0.65
0.60
0.50
40
40
40
40
40
35
35
35
35
.31
.38
.48
.59
.76
.92
.51
.63
.60
REF. DIMENSIONS IN INCHES
C
.16
.18
.21
.25
.32
.32
.24
.28
.26
VT/B
.14
.16
.19
.23
.30
.30
.21
.25
.24
HT/B PIN OD
.29
.36
.46
.57
.74
.90
.48
.59
.58
.036
.032
.028
.025
.025
.020
.018
.018
.018
Specifications subject to change without notice.
20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630
•
TEL: (949) 452-0511
•
FAX: (949) 452-0512
•
http://www.premiermag.com
2
SENDUST
TOROIDAL
POWER INDUCTORS
FEATURES
*
Sendust Powdered Iron Toroidal Construction.
*
Optimized For Use as High Frequency DC Chokes.
*
Low core loss
*
Low Cost Self Lead Construction.
NOTES:
Ln = Nominal Ind. @ 0.0Adc
L1 = Nominal Ind. @ I1 Adc, T1 Temp Rise
Ln & L1 = +/-15%
ELECTRICAL SPECIFICATIONS AT 25
O
C - OPERATING TEMPERTURE RANGE -55
O
C TO +105
O
C
PART
NUMBER
XTK-00020
XTK-00021
XTK-00022
XTK-00023
XTK-00024
XTK-00025
XTK-00026
XTK-00027
XTK-00028
XTK-00029
XTK-00030
XTK-00031
XTK-00032
XTK-00033
XTK-00034
XTK-00035
XTK-00036
XTK-00037
XTK-00038
XTK-00039
XTK-00040
XTK-00041
XTK-00042
XTK-00043
Ln
(µH)
µ
10
12
15
18
22
27
33
39
47
56
68
100
120
150
180
220
270
330
390
470
560
680
820
1000
I1
(dc A)
12.5
12.0
11.2
10.8
10.3
9.8
7.4
7.1
6.7
6.4
4.9
4.4
3.3
3.1
3.8
3.6
3.4
3.3
2.5
2.3
2.2
2.1
2.0
1.9
L1
(µH)
µ
6.5
8.0
9.5
11.2
13.5
16.0
21.5
25.0
29.0
34.0
45.5
64.0
84.0
102.0
106.0
125.0
150.0
176.0
235.0
276.0
320.0
375.0
440.0
520.0
T1
(
O
C)
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
DCR
(Ohm)
0.007
0.008
0.008
0.009
0.010
0.011
0.020
0.022
0.024
0.026
0.046
0.056
0.100
0.110
0.075
0.085
0.095
0.100
0.180
0.190
0.210
0.230
0.260
0.280
REF. DIMENSIONS IN INCHES
A
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
C
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
.55
VT/B
.46
.46
.46
.46
.46
.46
.45
.45
.45
.45
.44
.44
.44
.44
.48
.48
.48
.48
.46
.46
.46
.49
.49
.49
HT/B PIN OD
.88
.88
.88
.88
.88
.88
.87
.87
.87
.87
.86
.86
.86
.86
.90
.90
.90
.90
.88
.88
.88
.91
.91
.91
.053
.053
.053
.053
.053
.053
.042
.042
.042
.042
.034
.034
.027
.027
.034
.034
.034
.034
.027
.027
.027
.027
.027
.027
VTK-xxxxx FOR VERTICAL & HTK-xxxxx FOR HORIZONTAL
Specifications subject to change without notice.
PM-DCXXXXX 9/2000
20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630
•
TEL: (949) 452-0511
•
FAX: (949) 452-0512
•
http://www.premiermag.com
3
SENDUST
TOROIDAL
POWER INDUCTORS
VTK-XXXX MECHANICAL
HTK-XXXX MECHANICAL
VTK-XXXXX
OUTLINE
VERTICAL MOUNT
SCHEMATIC
HORIZONTAL OR VERTICAL MOUNT:
Table Part Numbers are Vertical Mount.
Change the "V" to "H" for Horizontal Mount.
Example:
VTK-05001 = Vertical Mount 50uH, 1.0Adc
HTK-05001 = Horizontal Mount 50uH, 1.0Adc
HTK-XXXXX
OUTLINE
HORIZONTAL MOUNT
EPOXY
HOLDS WIRE
EPOXY
HOLDS WIRE
A
A
C
P
VTK-XXXXX
M
STRIPPED & TINNED
.01 TO .12 ABOVE
SEATING PLANE
B
C
P
HTK-XXXXX
M
STRIPPED & TINNED
.01 TO .12 ABOVE
SEATING PLANE
0.5 TYP
D2
MUR610CT
VTK/HTK-XXXX
XXuH @ X.XA
0.5
TYP
B
R4
20.0K 1%
+
C3
R5
220uF
10.0K 1% 25V
Vout DC
C2
+
1000uF
35V
SECONDARY
RTN
SCHEMATIC
APPLICATION
VARIATIONS AVAILABLE. FOR INTERMEDIATE VALUES AND/ OR CUSTOM DESIGNS PLEASE
CONSULT THE FACTORY.
Specifications subject to change without notice.
20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630
•
TEL: (949) 452-0511
•
FAX: (949) 452-0512
•
http://www.premiermag.com
4
