Vertical Surface Mount Toroidal Inductor
The standard inductance value tolerance is +/-5% when measured at the frequencies
specified in Table 1. Inductance values are measured on an HP 4284A LCR meter.
Since inductance varies with AC/DC current values, each end application should be
evaluated to ensure proper readings. The tabulated current ratings (Rated I
DC
) are those
calculated to cause a 25 deg. C rise in case temperature. These inductors are designed
to meet the applicable portions of MIL-C-15305, Grade 1, Class B. The temperature
coefficient of inductance is less than 400ppm/deg. C over the operating temperature
range of -55 to +125 deg. C. Inductors are capable of withstanding 500Vdc@50 uA
applied between the coil and the case.
The inductor is fully encapsulated in epoxy resin and is housed in a Liquid Crystal
Polymer case, off-white in color. The case dimensions are specified in Table 2. The
case marking is applied by silkscreen using blue epoxy paint. The 4 Phosphor-Bronze
or Beryllium Copper leads are tin-lead plated and the 2 active leads are marked on the
case by the coil emblem.
Product Selection Table
PART
L
SIZE DCR
Q
SRF TYP RATED IDC
.
NUMBER
(uH)
(ohms) (nom) (Mhz)
(mA)
VSMT-2.7 2.7
1
0.50
90
93
900
VSMT-3.0 3.0
1
0.50
90
87
880
1
0.50
87
81
860
VSMT-3.3 3.3
VSMT-3.6 3.6
1
0.50
87
76
840
VSMT-3.9 3.9
1
0.60
85
71
820
VSMT-4.3 4.3
1
0.60
85
67
810
VSMT-4.7 4.7
1
0.60
80
63
800
VSMT-5.1 5.1
1
0.60
78
60
790
VSMT-5.6 5.6
1
0.60
78
57
780
VSMT-6.2 6.2
1
0.60
75
54
770
VSMT-6.8 6.8
1
0.60
75
51
760
VSMT-7.5 7.5
2
0.80
92
48
750
VSMT-8.2 8.2
2
0.90
92
45
730
VSMT-9.1 9.1
2
0.90
92
42
710
VSMT-10 10.0
2
0.90
91
40
690
VSMT-11 11.0
2
1.0
91
38
670
VSMT-12 12.0
2
1.1
91
36
650
VSMT-13 13.0
2
1.1
90
34
630
VSMT-15 15.0
2
1.2
90
32
610
VSMT-16 16.0
2
1.2
90
30
600
VSMT-18 18.0
2
1.3
90
28
590
VSMT-20 20.0
2
1.4
90
26
570
VSMT-22 22.0
2
1.5
89
24
550
VSMT-24 24.0
2
1.5
89
22
540
VSMT-27 27.0
2
1.6
88
21
530
VSMT-30 30.0
2
1.7
88
20
510
VSMT-33 33.0
2
1.8
87
19
500
VSMT-36 36.0
2
1.9
85
18
490
VSMT-39 39.0
2
2.0
83
17
480
VSMT-43 43.0
2
2.1
80
16
470
VSMT-47 47.0
2
2.2
76
15
470
VSMT-51 51.0
3
2.3
110
14
460
Special modules can often be manufactured to provide for customer specific applications.
W
VSMT-
220
L
H
YYWW
MADE IN USA
A
INDUCTANCE
TEST
(IN uH)
FREQUENCY
2.7-9.1
7.9MHz
10-91
2.5MHz
100-910
790KHz
1000-1200
250KHz
TABLE 1
Test Frequencies
Product Selection Table (cont.)
PART
L
SIZE DCR
Q
SRF TYP RATED IDC
.
NUMBER
(uH)
(ohms) (nom) (Mhz)
(mA)
VSMT-56
56.0
3
2.4
106
13
450
VSMT-62
62.0
3
2.6
102
12
440
VSMT-68
68.0
3
2.8
98
12
420
VSMT-75
75.0
3
3.0
96
11
410
VSMT-82
82.0
3
3.2
94
10
400
VSMT-91
91.0
3
3.4
92
10
400
VSMT-100 100
3
3.6
105
9
380
VSMT-110 110
3
3.8
104
9
370
VSMT-120 120
3
3.9
103
8
360
VSMT-130 130
3
4.0
102
8
350
VSMT-150 150
3
4.2
102
7
340
VSMT-160 160
3
4.4
101
7
330
VSMT-180 180
3
4.8
101
6
330
VSMT-200 200
4
5.1
100
6
320
VSMT-220 220
4
5.4
100
5
320
VSMT-240 240
4
5.7
100
5
320
VSMT-270 270
4
3.8
100
5
400
VSMT-300 300
4
4.0
100
4
390
VSMT-330 330
4
4.2
100
4
380
VSMT-360 360
4
4.4
100
4
370
VSMT-390 390
4
4.6
99
3
360
VSMT-430 430
4
4.8
98
3
350
VSMT-470 470
4
5.0
97
3
350
VSMT-510 510
4
5.2
95
3
340
VSMT-560 560
4
5.5
92
3
330
VSMT-620 620
5
5.8
88
2.8
350
VSMT-680 680
5
6.2
82
2.6
340
VSMT-750 750
5
6.5
75
2.5
330
VSMT-820 820
5
6.8
70
2.3
320
VSMT-910 910
5
7.1
65
2.2
320
VSMT-1000 1000
5
7.5
115
2.1
310
VSMT-1200 1200
5
8.2
115
1.8
300
Phone: 805-369-0034
Fax:
805-369-0033
Web: www.ec2.com
engineered components company
A Division of Cornucopia Tool & Plastics, Inc. PO Box 1915, 448 Sherwood Rd., Paso Robles CA 93447
NC
32440
.065 TYP.
DATE
CODE
.010 TYP.
.125 TYP.
.020
TYP.
W=WIDTH
L=LENGTH
H=HEIGHT
A=LEAD SPACING (WIDTH)
SIZE
1
2
3
4
5
W
L
H
.150 .250 .260
.200 .300 .310
.225 .350 .360
.250 .500 .510
.300 .600 .610
TABLE 2
Package Sizes
A
.100
.100
.150
.150
.200
NC
The Vertical Surface Mount Toroidal Inductors manufactured by Engineered Components
Company are designed for RF/low power applications using stable powdered iron core
material. The fully encapsulated inductor provides a low external magnetic field, a high
self-resonant frequency, and a high Q.
Embedded System
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