WVLM
Vishay Dale
Inductors
Variable, Subminiature, Shielded
FEATURES
•
•
•
•
•
•
•
Subminiature shielded adjustable inductor.
High Q values.
Vertical or horizontal mounting.
Unitized epoxy-molded construction.
Inductance range is 0.10µH to 100,000µH.
0.300" [7.62mm] diameter by 0.400" [10.16mm] length.
Printed board mounting facilitated by 0.200" [5.08mm] grid
spacing.
•
Unit has shield construction to allow maximum density
packaging.
•
Accommodates close inductance adjustments in high
density circuits that demand exceptional stability and high
“Q” in the smallest size available.
ELECTRICAL SPECIFICATIONS
Adjustable Inductance Range:
Tunable range;
±
5% for
0.10µH to 1µH.
±
10% for 1.2µH to 100,000µH.
Dielectic Strength:
840VRMS at sea level.
Working Voltage:
300VDC.
Rated Current:
Based on temperature rise not to exceed
15°C at + 90°C ambient.
Incremental Current:
The DC current required to cause a
five percent reduction in the nominal inductance value.
Operating Temperature:
- 55°C to + 105°C.
MECHANICAL SPECIFICATIONS
Tuning Tool:
Use Vishay Dale No. 642866-01.
Torque:
0.40 to 6 inch-ounces.
Terminal Pull:
3 pounds.
DENSITY SPECIFICATIONS
Weight:
1.5 grams maximum.
Shielding:
3% coupling maximum when two units are
tested side by side.
DIMENSIONs
in inches [millimeters]
Horizontal Style
Vertical Style
0.400 [10.16]
0.320 [8.13]
0.300
±
0.020
[7.62
±
0.508]
3/8
±
1/16
[9.52
±
1.59]
0.400
±
0.030
[10.16
±
0.762]
0.020
[0.508]
Dia. Wire
Phosphor-Bronze
3/8
±
1/16
[9.52
±
1.59]
0.200
±
0.010
[5.08
±
0.254]
0.375 [9.53]
0.050 [1.27]
#24 0.020
±
0.002
[0.508
±
0.051] TCW
0.200
±
0.010
[5.08
±
0.254]
Tuning Tool P/N 642866-01
Document Number 34087
Revision 02-Nov-01
For technical questions, contact Magnetics@vishay.com
www.vishay.com
53
WVLM
Vishay Dale
Inductors,Variable, Subminiature, Shielded
STANDARD ELECTRICAL SPECIFICATIONS
IND.
(
µ
H)
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
1200
1500
1800
2200
2700
3300
3900
4700
5600
6800
8200
10000
12000
15000
18000
22000
27000
33000
39000
47000
56000
68000
82000
100000
TOL.
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
TUNABLE
RANGE
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
Q
MIN.
45
45
45
45
45
51
51
51
51
51
51
55
55
58
64
74
71
71
58
58
61
61
55
61
58
77
77
74
80
74
77
77
71
74
67
67
61
61
58
61
61
64
64
64
64
61
64
58
64
61
58
64
64
61
58
55
55
51
48
51
45
45
45
45
45
45
45
45
45
45
39
39
39
TEST FREQ. SELF-RESONANT
MIN.
FREQ.
DCR
(MHz)
(MHz)
(Ohms)
25
25
25
25
25
25
25
25
25
25
25
25
25
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
250
250
250
250
250
250
250
210
184
176
152
144
128
136
124
108
96
83.2
74.4
69.6
63.2
57.6
50.4
48.0
43.2
29.6
23.0
19.0
17.0
16.5
14.9
14.1
11.9
11.1
10.3
9.35
8.40
4.50
4.16
3.92
3.70
3.36
2.83
2.76
2.58
2.34
2.18
2.00
1.88
1.76
1.52
1.44
1.36
1.20
1.12
1.02
0.994
0.744
0.632
0.600
0.560
0.400
0.304
0.288
0.256
0.240
0.216
0.208
0.200
0.192
0.160
0.152
0.136
0.030
0.030
0.030
0.035
0.035
0.040
0.040
0.045
0.045
0.050
0.055
0.060
0.070
0.085
0.100
0.110
0.120
0.125
0.165
0.180
0.245
0.265
0.330
0.460
0.640
0.800
0.865
0.940
1.03
1.18
1.30
1.41
1.61
2.08
2.20
2.42
2.15
2.38
2.52
2.88
3.18
3.50
4.80
5.44
5.90
6.30
7.20
8.00
12.0
13.5
16.5
18.0
20.5
22.5
42.0
47.5
53.0
62.5
69.5
75.0
100.0
64
84
93
104
173
187
220
253
285
311
385
420
RATED DC
CURRENT
(mA)
1510
1450
1400
1370
1340
1300
1260
1240
1200
1160
1100
1040
986
968
893
853
817
800
696
659
571
550
493
417
359
316
301
292
267
243
231
223
203
191
185
174
180
171
167
156
145
141
121
113
109
105
97
94
76
72
65
62
58
56
41
38
36
33
32
31
26
33
29
27
26
20
19
18
17
16
15
14
13
INCREMENTAL
CURRENT*
(mA)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
140
130
125
110
95
90
75
70
65
60
57
55
43
40
37
35
34
33
25
23
20
19
18
17
15
19
17
16
15
13
12
11
10
9
8
7
6
*Incremental Current:
The DC current required to cause a 5% reduction in the nominal inductance value.
MARKING
— Vishay Dale
— WVLM
— Value
— Date Code
www.vishay.com
54
ORDERING INFORMATION
WVLM
MODEL
0.10
µ
H
INDUCTANCE
VALUE
±
5%
INDUCTANCE
TOLERANCE
For technical questions, contact Magnetics@vishay.com
Document Number 34087
Revision 02-Nov-01
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