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.
Operating Temperature: - 55°C to + 105°C.
MECHANICAL S P ECIFICATIONS
Tuning Tool: Use Vishay Dale No. 642866-01.
Torque: 0.40 to 6 inch-ounces.
ELECTRICAL S P ECIFICATIONS
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.
Terminal Pull: 3 pounds.
DENS ITY S P ECIFICATIONS
Weight: 1.5 grams maximum.
Rated Current: Based on temperature rise not to exceed
15°C at + 90°C ambient.
Incremental Current: The DC current required to cause a
Shielding: 3% coupling maximum when two units are
tested side by side.
five percent reduction in the nominal inductance value.
DIMENS IONs in inches [millimeters]
Vertical Style
Horizontal Style
0.320 [8.13]
0.400 [10.16]
0.300 ± 0.020
[7.62 ± 0.508]
0.400 ± 0.030
[10.16 ± 0.762]
3/8 ± 1/16
[9.52 ± 1.59]
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
0.200 ± 0.010
[0.508 ± 0.051] TCW
[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
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