AKM Steels Ltd
AKM Steels is a steel stockholder with a specialism in high quality tool steel for the engineerin……...
KAP301 Kapton wires
Allectra has introduced the new KAP301 range of exclusive radiation-resistant high-temperature Kapton insulated wires. These wires are an alternative for the 311-KAPM-RAD range and deliver higher voltages.
At present, they are available in the form of multistrand wires with diameters of 0.6 mm (301-KAPM-060), 0.35 mm (301-KAPM-035), and 0.25 mm (301-KAPM-025), as well as coaxial wires, twisted pair cables, and thermocouple wires, type K and N.
Diamond Light Source, UK hassuccessfully tested thesewires under an electron beam to examine their vacuum compatibility during radiation exposure and will nowuse them in vacuum.
Specifications
| . | . |
|---|---|
| Vacuum | UHV (<10-10 mbar) |
| Radiation resistance | 109 Rad = 107 Gy |
| Temperature range | 4 K...300 °C |
| Construction | Wrapped Wire insulation, Kapton |
| Conductor | Silver-plated copper, multistrand0.25 mm: 7 x 0.08 mm ø (same for Coax)0.35 mm: 7 x 0.12 mm ø0.6 mm: 19 x 0.127 mm ø0.25 mm: thermocouple wires |
| OD (Typical values) | 0.25 mm conductor: 0.47 mm0.35 mm conductor: 0.58 mm0.6 mm conductor: 0.74 mm0.9 mm coaxial 0.25 mm core wire0.95 mm thermocouple wires (K/N) |
| Minimum bend radius | 7.5 x diameter (long term) |
| Voltage rating | 7.5 KV DC in vacuum |
| Disruptive voltage | >14 KV DC |
These cables are available on spools with 5 m/10 m/50 m/100 m, or custom lengths.
27 GHz SMA Feedthrough for UHV Applications
242-SMAD27G-C16 (and other flange sizes)
Allectra currently provides a double-sided SMA feedthrough that has an extended frequency range of up to 27 GHz for UHV. These “Super-SMA” versions are an economical substitute to the SMA-K or 2.92 mm types, if frequencies more than 27 GHz are not required. The stainless steel housing comes with gold-plated center contact. Up to four of these feedthroughs can be fixed to a DN40CF flange. The smallest mounting flange is 16 CF.
Specifications
| . | . |
|---|---|
| Type | Super-SMA with extended frequency range |
| Impedance | 50 Ohm |
| Frequency range | 0–27 GHz |
| Standing wave ratio (VSWR) | Maximum of 1.25 at 27 GHz |
| Insertion loss | typ. 0.15 x √f (GHz) db |
| Maximum voltage | 500 V |
| Temperature | -55 °C to 180 °C (CF flanges) |
| Vacuum leak rate | <5 x 10-10 mbar l/second (He) |
| Materials | Glass, Stainless Steel, BeCu, PTFE, FeNi |
| Plating | Inner contact gold plated |
| Seal | Welded all-metal seal |
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