Kapton Insulated Wires

The CABURN UHV ® type Kapton isolated wire has been used successfully for many years for UHV applications. Allectra is pleased to offer the original KAP type of wires together with some new multi-strand types which have a higher flexibility and are easier to use.

Now available one twisted pair, two twisted pair,10 and 15 way ribbon cable.

All Allectra Kapton wires are prepared for use in UHV and supplied clean and packed ready for use.

Choosing the right wire:

Type
Construction
Conductor Diam.
mm
Overall Diam max.
mm
Max.
Voltage in vacuum 1
V DC
Max. Current 2
A
Conductor area
mm²
Resistively 3 Ohm/km
Usage example
311-KAP-010 Plain copper wire, dipped 0.1 0.12 2,000 0.1 0.01 2270 STM / AFM, radiation environment
311-KAP-014 Plain copper wire, dipped
0.14 0.16 2,000 0.2 0.02 1160 Fine instrumentation, radiation environment
311-KAP-025 Plain copper wire, dipped
0.25 0.28 2,000 1 0.05 360 Standard instrumentation, radiation environment
311-KAP-060 Plain copper wire, dipped
0.63 0.69 2,000 5 0.31 58 Standard medium current, radiation environment
311-KAP-100 Plain copper wire, dipped
1 1.1 10,000 10 0.79 23 High current and high voltage applications,
radiation environment
311-KAP-170 Plain copper wire, dipped
1.7 1.85
12,000		 17 2,2 8 Very high current and voltage
311-KAP1 Silver plated copper wire, wrapped 0.25 0.55 4,000 1 0.05 360 Caburn UHV© Type, easy to strip,
general instrumentation
311-KAP2 Silver plated copper wire, wrapped 0.6 0.9 4,000 4.5 0.28 64 Caburn UHV© Type, easy to strip,
medium current
311-KAPM-025 Multi Strand silver plated wire, wrapped 7x 0,08mm 0.23 0.39 600 0.5 0.04 508 High flexibility instrumentation wire,
low current and low voltage
311-KAPM-035 Multi Strand silver plated wire, wrapped 7x 0,12mm 0.35 0.5 600 1 0.08 225 High flexibility, Sub-D connectors,
low current and low voltage
311-KAPM-060 Multi Strand silver plated wire, wrapped 19x 0,1mm 0.6 0.67 600 2.5 0.15 119 High flexibility, Sub-D connectors,
medium current
311-KAPM-100 Multi Strand silver plated wire, wrapped 19x 0,2mm 1 1.17 600 9 0.6 30 High flexibility, high current wire, up to 10A
for short periods
311-KAP50

 50 Ohm coaxial wire, multi strand silver plated conductor. 0.45 2.3 5,000 1 0.12 144
 All 50 Ohm connections, specially for SMA connectors, signals, which need shielding
311-KAPM-060-COAX Multi-Strand coaxial wire,
19 x 0,1mm, outer insulated
 0,6 1,4 600 2,5 0.15 119 For all connections, where shielding is required but no high frequency is involved

1 Max. Voltage in Air is significantly lower. Allectra does not recommend these wires for air use.
2 Max. Current depends strongly on use, especially for vacuum applications. If a coil is formed, a temperature test should be done. As an approximation, 1/3 of the given current can be assumed . As the heat dissipation is very low in vacuum, the cables will get hot with continuous use at the given values.
3 Calculated value with conductance of 56 S m /mm² at 20°C

  Dipped Wire Wrapped and Multi-Strand Wire
Temperature range (vacuum) 4K to 260°C, up to 300°C for short periods 4 4K to 260°C
Dielectric constant (kHz) ~3.5 ~3.1
Dielectric strength (dry) kV/mm >135 >135
Dissipation factor 0.0015 0.0015
Vacuum range UHV, <10-11 mbar UHV, <10-11 mbar
Radiation resistance 10 9 Rad = 10 7 Gy
 10 7 Rad = 10 5 Gy
(non-flexing applications)

4 Temperatures above 260°C will change the electrical specs after some 100 hours, lifetime of cable is reduced.

Additional help for making the right selection:


All values are given are for reference only and may vary. Allectra is not responsible for any deviation from the quoted figures.


For the complete range and prices please download our catalogue.