Jennings UCSL-1000-5S


glass vacuum variable capacitor

Out of stock

Rated Capacitance 7-1000 pf
Peak Voltage 5 KV
Current Amps (RMS) Maximum 42 amps
Shaft Diameter 1/2 inch
Turns for Full Travel Max 14
Important Dimensions
Max Length 8.25 in / 209.55 mm (including shaft)
Max Diameter 3.25 in / 82.55 mm
Weight 29.50 oz. / 836.31 g
The front (shaft and puller end) neck of this capacitor has a larger-than-normal diameter. This model has a front neck diameter of 2.137″, and the FM2 flange will NOT fit. Instead, this model was designed for the front shoulder (the flat end closest to the blue “puller”) to be mounted through a panel or bulkhead by means of three drilled and tapped holes to accommodate mounting screws. The puller would then be mounted on the other side of the panel, with the shaft extending through the panel to operate the capacitor. (Panel would also be drilled with a center hole to accommodate the brass center piston of the capacitor.) With purchase of capacitor, we can furnish a front aluminum L-bracket to take the place of a panel, AT NO ADDITIONAL CHARGE (just request it in “comments”).
FM1C Flange needed for rear end mounting (Available at additional cost) See our flange page: Vacuum Capacitor Flanges
Condition Removed from equipment, checked and guaranteed
(Other variations of this capacitor are sometimes available, inquire)
UCSL-750-3S UCSL-1000-3S UCSL-750-3 UCSL-1000-3

UCSL-750-5S UCSL-1000-5S UCSL-750-5 UCSL-1000-5

Additional information

Weight 29.50 oz
Dimensions 9.25 x 9.25 x 14.25 in


Min Capacitance

Max Capacitance


5 KV

Current Rating

42 Amps

Shaft Diameter

1/2" OD Shaft



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