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INTRODUCTION
This specification sheet lists the electrical and mechanical specifications of the 5440A-7002 Low
Thermal Test Lead Set. The set includes two 5440A-7004 test leads and one 5440A-7005 test lead. The
Low Thermal Test Leads are accessories for the 5440 Series calibrators. These test leads have lower
thermal emf than standard test leads, minimizing the emf caused by the temperature difference between
the ends of the leads.
Specification Sheet
Model 5440A-7002
Low Thermal Test Lead Set
®
MECHANICAL SPECIFICATIONS
Length ....................................5440A-7004: 24 in ± 1 in
5440A-7005: 48 in ± 1 in
Connector Size ......................4 mm diameter
Connector Style ....................Safety type, with a retractable spring-loaded hood. The
connector engages with a wiping action.
Connector Materials
MAIN BODY .............................Nylon
RETRACTABLE HOOD .........Nylon
STRAIN RELIEVER ...............ABS (for high leakage resistance between the center
conductor and the connector shield)
CENTER CONDUCTOR ........Tellurium copper
SPRING TIP.............................Beryllium copper
GUARD CONNECTOR ..........Nylon; stackable banana plug construction
PN 788307 December 1985 Rev. 2, 12/91 ©1991, John Fluke Mfg. Co., Inc. Ail rights reserved. Litho in U.S.A.
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ELECTRICAL SPECIFICATIONS
Thermal EMF .............................................Less than 1.3 µV per °C when measured while engaged
in a five-way binding post of Tellurium Copper Alloy
145, half hard (John Fluke PN 637892 or equivalent)
Leakage Resistance Between
Center Conductor and Shield ...............Greater than 1.0 x 10
13
ohms at 45°C and 75% R.H.
Cable Type .................................................RG-58/U type with AWG 20 stranded and tinned
center conductor (19 x .0071 in) (Belden 8262 or
equivalent)
Safety Rating.............................................. Designed to meet UL 1244 to 1100V ac
For application or operation assistance or information on Fluke products, call:
800-433-5833 in U.S.A and Canada 206-356-5500 from other countries
John Fluke Mfg. Co., Inc Phillips International B.V.
P.O. Box 9090 T & M Dept., Building TQ111-4
Everett, WA 98206-9090 5600 MD Eindhoven, The Netherlands
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