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 |
Cryogenic Ribbon Cable
High quality cryogenic woven loom for all low temperature installations.
These looms are woven from twisted pairs of insulated wires and are reinforced with threads made from high strength Nomex®. Width 5mm x 0.6mm thick. Available per meter or supplied with either Fischer or miniature D type connectors.
More information:
sales@iceoxford.com
Available in the following:
| Material 42 SWG wire (0.1 mm) | Format | Code | Price | Qty | Length(m) | Basket |
| Constantan | 12 tw pairs | ICEcrw01 | £28.00 | |||
| Constantan/Copper | 9 tw pairs + 3tw pairs | ICEcrw02 | £30.00 | |||
| Copper | 12 tw pairs | ICEcrw76 | £26.00 | |||
| Constantan | 2 tw pair | ICEcrw03 | £25.00 | |||
| NbTi | 12 tw pairs | ICEcrw04 | £94.00 | |||
| Manganin | 12 tw pairs | ICEcrw05 | £32.00 | |||
| Constantan/NbTi | 9 tw pairs + 3 tw pairs | ICEcrw28 | £POA |
Constantan Wire
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:
sales@iceoxford.com
Available in the following:
| Wire Type | Sizes (SWG) | Code | Price | Qty | Length(m) | Basket |
| Constantan | 34 | ICEcrw06 | £42.00 | |||
| Constantan | 36 | ICEcrw07 | £42.00 | |||
| Constantan | 38 | ICEcrw08 | £42.00 | |||
| Constantan | 40 | ICEcrw09 | £60.00 | |||
| Constantan | 42 | ICEcrw10 | £60.00 | |||
| Constantan | 44 | ICEcrw11 | £90.00 | |||
| Constantan | 46 | ICEcrw12 | £75.00 |
Manganin Wire
Higher electrical conductivity compared to constantan.
Composition: Cu 83%, Mn 13% and Ni 4%.
Polyester imide insulation.
Individual price is for 25g spool, approximately 25m.
More information:
sales@iceoxford.com
Available in the following:
| Wire Tape | Sizes (SWG) | Code | Price | Qty | Basket |
| Manganin | 34 | ICEcrw13 | £44.00 | ||
| Manganin | 36 | ICEcrw14 | £50.00 | ||
| Manganin | 38 | ICEcrw15 | £70.00 | ||
| Manganin | 40 | ICEcrw16 | £54.00 | ||
| Manganin | 42 | ICEcrw17 | £50.00 | ||
| Manganin | 44 | ICEcrw18 | £42.00 | ||
| Manganin | 46 | ICEcrw19 | £50.00 |
Copper Wire
For use in wiring looms, Polyester imide insulation.
Good thermal and electrical conductivity.
Individual price is for 25g spool, approximately 25m.
More information:
sales@iceoxford.com
Available in the following:
| Wire Tape | Sizes (SWG) | Code | Price | Qty | Length(m) | Basket |
| Copper | 34 | ICEcrw20 | £15.00 | |||
| Copper | 36 | ICEcrw21 | £15.00 | |||
| Copper | 38 | ICEcrw22 | £15.00 | |||
| Copper | 40 | ICEcrw23 | £15.00 | |||
| Copper | 42 | ICEcrw24 | £15.00 | |||
| Copper | 44 | ICEcrw25 | £15.00 | |||
| Copper | 46 | ICEcrw26 | £24.00 |
Flexible Stainless Steel Co-Axial Cable
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:
sales@iceoxford.com
Available in the following:
| Code | Price | Qty | Length(m) | Basket | |
| ICEcrw27 | £40.00 |
Semi-Rigid Coaxial Cable
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:
sales@iceoxford.com
Available in the following:
| Code | Price | Qty | Length(m) | Basket | |
| ICEcrw30 | £105.00 |
Film Heaters
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:
sales@iceoxford.com
Available in the following:
| Code | Price | Qty | Basket | |
| ICEcrw31 | £25.00 |
Wiring Bobbin
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:
sales@iceoxford.com
Available in the following:
| Code | Price | Qty | Basket | |
| ICEcrw82 | £35.00 |
Sensor Wiring Bobbin
2 piece sensor mount for wiring and dumping a cryogenic sensor for use with M3 screws
More information:
sales@iceoxford.com
Available in the following:
| Code | Price | Qty | Basket | |
| ICEcrw35 | £35.00 |
CRYOTUBE
ALL sizes available in stainless
steel tubing - click the link
below for more information
and to buy.
I have worked with IceOxford for a number of years building, developing and repairing cryogenic systems, and I have found their Cryobitz supplies section excellent in both availability and speed of response.
Dr Mark Ellerby, Department of Physics and Astronomy, University College London