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A COMPLETE LINE OF DEPENDABLE ENCAPSULATED RESISTORS
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DESIGNS
PERMASEAL
PRECISION WIREWOUND RESISTORS FOR 85C AND 125C AMBIENTS
For applications requiring accurate resistance
values at 85C and 125C operating
temperatures -in units of truly small physical
size- select the precise resistor you
want from one of the 46 standard Permaseal
designs in tab or axial lead styles.
Winding forms, resistance wire and embedding
material are matched and integrated,
resulting in long term stability at
rated wattage over the operating temperature
range. The embedding material is a
special plastic that extends protection well
beyond the severe humidity resistance
specifications of MIL -R-93A and Proposed
MIL -R-9444 (USAF).
These high -accuracy units are available
in close resistance tolerances down to
± 0.1 %. They are carefully and properly
aged by a special Sprague process so
that they maintain their accuracy
within the limits set by the most
stringent military specifications.
4 MUCK
SPRAÇ
FOR COMPLETE DATA
WRITE FOR COPY
OF SPRAGUE
ENGINEERING
BULLETIN NO. 122A
=
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SPRAGUE ELECTRIC COMPANY 233 MARSHALL ST. NORTH ADAMS, MASS.
14
Or product information, use inquiry cord on popes 209 -210. Tele -Tech & ELECTRONIC INDUSTRIES June 1956