INVESTIGATION OF FIXED HIGH MEGOHM RESISTORS.

Abstract

The development work was concerned with high stability high-megohm resistors and with high temperature normal resistance range resistors. A promising resistor was developed for operation in an ambient temperature of 200 C. The resistor consists of a molded Teflon unit with carbon black or graphite conducting particle filler. Units with a nominal rating of 2 watts were made in resistance values up to about 100,000 ohms. Indications are that the resistors can be operated under 75% load at 200 C without failure. In the high megohm field resistors were produced which substantially meet the requirements of the Signal Corps. The techniques for producing these resistors are described. Electrical characteristics are tabulated and discussed. The results of an extensive investigation of lead glasses are included. Temperature Coefficient of Resistance is -0.5% C, slightly greater than desired, but satisfactory for most applications. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1951
Accession Number
AD0463009

Entities

Organizations

  • Sprague Electric

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Electrical Impedance
  • Electrical Properties
  • Electrical Resistance
  • Electricity
  • Graphitic Materials
  • High Temperature
  • Impedance
  • Particles
  • Resistance
  • Resistors
  • Temperature Coefficients

Readers

  • Thermal Physics or Thermal Science.