Resistors stay stable at high temperatures

Standard and miniature high-power resistors withstand high temperatures and electrical overloads.

Design engineers looking for a high power resistor capable of withstanding high temperatures and electrical overloads can now specify commercial grade metal oxide resistors from TT Electronics IRC Wire and Film Technologies Division.

Designated the CMO Series, the resistors are available in both standard and miniature sizes, with power ratings from 0.25 to 9W at 70C, and a maximum operating temperature of 240C.

"These metal oxide resistors offer a wide resistance range in a rugged, flameproof device capable of operating at sustained high ambient temperatures", says David Winkler, Product Manager for IRC's Wire and Film Technologies Division.

"The availability of the CMO Series devices in miniature sises makes it an ideal choice for engineers who need power resistors for applications with limited PC board space".

Supplied with a superior flame retardant coating, the CMO Series resistors are being specified for industrial and power electronics applications that require stable high temperature performance in harsh environments.

The CMO Series metal oxide resistors feature power ratings from 0.25 to 9W in standard size axial leaded packages; and from 0.5 to 5W in miniature sizes, with a resistance range from 0.3ohm to 200kohm.

Standard tolerances for the devices are to +/-2, +/-5 and +/-10% with TCRs of +/-350ppm/C.

Maximum working voltage ranges from 250 to 750V.

Typical pricing for the CMO Series resistors is US $0.024 each for 1W, in quantities of 20,000 pieces.

Lead time is from stock to 6 weeks.

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