Cryogenic Spares » Wiring

Any wire, gauge or mixture of wires can be considered in woven looms or hand made GE varnish looms.

Typical resistance for the wires above (W/m)
Wire gauge  Dia(mm) Copper Copper Constantan Constantan Manganin Manganin
SWG   330 K 4.2 K 300 K 4.2 K 300 K 4.2 K
34 0.234 0.402 0.0035 12 10 11 10
36 0.193 0.589 0.0052 18 15 16 15
38 0.152 0.945 0.0084 29 24 27 24
40 0.122 1.48 0.0130 45 38 41 37
42 0.102 2.16 0.0186 64 54 59 53
44 0.081 3.32 0.0295 101 85 93 83
46 0.061 5.91 0.0520 178 151 164 147

 

Constantan Wire

Overview

Where thermal conduction must be minimized for use at low temperature.
Composition: Cu 55%, Ni 45%.
Polyester imide insulation.

Individual price is for 25g spool, approximately 25m.


More information: 01993 706 444

Available in the following

Wire TypeSizes (SWG)CodePriceQtyBasket
Constantan34ICEcrw06£42.00
Constantan36ICEcrw07£42.00
Constantan38ICEcrw08£42.00
Constantan40ICEcrw09£60.00
Constantan42ICEcrw10£60.00
Constantan44ICEcrw11£90.00
Constantan46ICEcrw12£75.00

Manganin Wire

Overview

Higher electrical conductivity compared to constantan.
Composition: Cu 83%, Mn 13% and Ni 4%.
Polyester imide insulation.

Individual price is for 50g spool, approximately 25m.


More information: 01993 706 444

Available in the following

Wire TapeSizes (SWG)CodePriceQtyBasket
Manganin34ICEcrw13£44.00
Manganin36ICEcrw14£50.00
Manganin38ICEcrw15£70.00
Manganin40ICEcrw16£54.00
Manganin42ICEcrw17£57.50
Manganin44ICEcrw18£42.00
Manganin46ICEcrw19£50.00

Copper Wire

Overview

For use in wiring looms, Polyester imide insulation.

Good thermal and electrical conductivity.

Individual price is for 25g spool, approximately 25m.


More information: 01993 706 444

Available in the following

Wire TapeSizes (SWG)CodePriceQtyBasket
Copper36ICEcrw21£15.00
Copper38ICEcrw22£15.00
Copper40ICEcrw23£15.00
Copper42ICEcrw24£15.00
Copper44ICEcrw25£15.00
Copper46ICEcrw26£24.00

Copper Wire 34SWG

Overview

For use in wiring looms, Polyester imide insulation.

Good thermal and electrical conductivity.

ICEcrw20 Per Metre.


More information: 01993 706 444

Available in the following

Wire TapeSize (SWG)CodePriceQtyLength(m)Basket
Copper34ICEcrw20£17.50

Flexible Stainless Steel Co-Axial Cable

Overview

Ideal suited where space and thermal conductivity are important. Botrh inner and shield are stranded stainless steel. Available by the metre.

Specification
Characteristic impedance 40W nominal (at 10 MHz)
Useful temperature range 10 mK to 500 K
Resistance 23°C
Wire 23.6 W/m
Shield 3.6 W/m
Jacket O/D 1 mm
Capacitance at 5 KHz 174 pf/m

More information: 01993 706 444

Available in the following

CodePriceQtyLength(m)Basket
ICEcrw27£49.00

Semi-Rigid Coaxial Cable

Overview

For use at microwaves frequencies, this semi-rigid cable is available in straight lengths up 3 meters long.

Dimensions Type: UT 85-SS-SS
Outer conductor dia. 0.0865 " 0.001 " 2.20 mm 0.0254 mm
Dielectric dia. 0.066 " 0.001 " 1.68 mm 0.0254 mm
Centre conductor dia. 0.021 " 0.0005 " 0.51 mm 0.0127 mm
Materials
Outer conductor 304 stst
Dielectric PTFE
Center conductor 304 stst
Electrical Properties
Characteristic impedance 50 " 1.5W
Capacitance (nominal) 29.0 pF/foot
Ciriba extinction voltage 1500 Vrms @ 60 Hz
Voltage withstanding 2500 Vrms @ 60 Hz
90% higher order mode 61 Ghz
Mechanical Properties
Max. operating temperature 200°C
Minimum inside bend radius 3.18 mm / 0.125"
Weight 1.25 lb/100 foot / 1.86 Kg/100m
Typical attenuation (dB/100 foot)/average power (watts CW)
  Attenuation Power
0.5 GHz 88.9 49.2
1.0 GHz 126 34.7
5.0 GHz 284.1 15.4
10.0 GHz 404.1 10.9
20.0 GHz 576.4 7.6

More information: 01993 706 444

Available in the following

CodePriceQtyLength(m)Basket
ICEcrw30£105.00

Film Heaters

Overview

A 25 watt, 25 W non inductive heater set in Kapton film, particularly useful for mounting on curved surfaces. Mount using kapton tape and varnish.


More information: 01993 706 444

Available in the following

CodePriceQtyBasket
ICEcrw31 £55.00

Sensor Wiring Bobbin

Overview

2 piece sensor mount for wiring and dumping a cryogenic sensor for use with M3 screws


More information: 01993 706 444

Available in the following

CodePriceQtyBasket
ICEcrw35£35.00

Wiring Bobbin

Overview

A copper Bobbin designed to support and thermally anchor wiring to cold points. 20mm in length, with a 3.2mm hole designed to accept a 3mm screw. Outer diameter of the bobbin is 8mm


More information: 01993 706 444

Available in the following

CodePriceQtyBasket
ICEcrw82£35.00