Construction

A carbon film is deposited onto a ceramic former. Plated steel caps are then fitted before the resistor is adjusted to value by a helical

cut in the film. Termination wires are then welded to the caps and the body of the resistor is protected with an epoxy coating.

Terminations

Material

Hot tin dipped copper wire.

Strength

The terminations meet the requirements of IEC 68.2.21

SolderabilityThe terminations meet the requirements of IEC 115-1,Clause 4.17.3.2

Marketing

Resistance value and tolerance are identified in accordance with IEC 62 4-band colour code.

Solvent Resistance

The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits.

Issue A . 11.06

© Welwyn Components Limited Bedlington Northumberland NE22 7AA, UK

Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com

GCF Series

Maximum Change

3

5

1 + 0.05W

Zero at 155°C

1 + 0.05W

Load life

DR%

Load life in humidity

DR%

Temperature rapaid change

Derating from rated power at 70°C

Short term overload

DR%

Terminal strength

DR%

Resistance to solder heat

No evidence of mechanical damage

1 + 0.05W

Solderability

Resistance to solder heat

Insulation resistance

Dielectric withstanding

DR%

min

Minimum of 95% coverage

No deterioration of protective coating and marking

1000M

No evidence of flahover, mechanical damage, arcing of insulation breakdown

Performance Data

OBSOLETE