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MODEL WVLM
Vishay Dale
Document Number 34087
Revision 26-Apr-99
www.vishay.com
130
Inductors
Variable, Subminiature, Shielded
FEATURES
Subminiature shielded adjustable inductor.
High Q values.
Vertical or horizontal mounting.
Unitized epoxy-molded construction.
Inductance range is .10
H to 100,000H.
.300" [7.62mm] diameter by .400" [10.16mm] length.
Printed board mounting facilitated by .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
.10
H to 1H. ± 10% for 1.2H to 100,000H.
Dielectic Strength: 840V RMS at sea level.
Working Voltage: 300 VDC.
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: .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.
Vertical Style
Horizontal Style
Tuning Tool P/N 642866-01
DIMENSIONAL CONFIGURATIONS
[Numbers in brackets indicate millimeters]
.020
[.508]
Dia. Wire
Phosphor-Bronze
3/8
± 1/16
[9.52
± 1.59]
.375 [9.53]
.320 [8.13]
.400 [10.16]
.200
± .010
[5.08
± .254]
.050 [1.27]
.200
± .010
[5.08
± .254]
#24 .020
± .002
[.508
± .051] TCW
3/8
± 1/16
[9.52
± 1.59]
.400
± .030
[10.16
± .762]
.300
± .020
[7.62
± .508]