The Sprague Electric company Film Capacitor Division locate din Longwood, Florida routinely manufactures three basic family types of energy discharge capacitors, which normally are operated from zero to forty degrees centigrade. They are the 28P, 382P, and 681P. a brief comparison of each family is provided in table III and some typical configurations are provided in Photographs 1, 2, and 3.

The 282P was developed by Sprague for laser pumping, uses in satellites, missiles, and other applications which require small, light weight, high energy density packages. They are designed using a multi-layer metallized paper and plain polyester, mineral wax impregnated dielectric system for discharging into xenon flash tubes or similar loads at low repetition rates. They are furnished in drawn-ternplate seamless and welded steel rectangular cases.

High energy density and light weight are features of the 681P energy discharge capacitors. These capacitors are used in laser, photoflash and aerospace applications. Their design employs the Sprague proprietary composition dielectric with silicone oil impregnation. Type 681P capacitors are available in hermetically sealed cylindrical cases with a single ceramic pillar terminal (case grounded), or with two ceramic pillar terminals (case insulated). Non-hermetic, nonimpregnated, epoxy end filled and tape wrapped designs with axial lead wire configurations are also available.

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