| 19-pin Vacuum Feedthrough |
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Specifications
Shell: Mild steel
Contacts: High nickel iron alloy
Finish: Fused tin over cadmium |
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| 4-Lead Resistance Sample Holder |
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Specifications
Temperature range: 4.2 K to 373 K (-269 ºC to 100 ºC)
Current: 1 A at 100 VDC
Insertion force: 227 g (8 oz) per pin
Dimensions: 5.1 mm wide × 27.9 mm long
(0.2 in wide × 1.1 in long)
Hole diameter: 0.8 mm (0.03125 in)
Hole spacing: 2.5 mm (0.1 in) between holes 1 & 2 and
3 & 4; 15.2 mm (0.6 in) between holes 1 & 4 and 2 & 3
Mating connector: Black thermoplastic
Sockets: Phosphor bronze with gold over nickel
Socket diameter: 0.41 mm to 0.51 mm
(0.016 in to 0.020 in square)
Socket depth: 2.03 mm to 6.35 mm
(0.080 in to 0.25 in) |
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| Cartridge Heaters |
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Specifications
Dimension: 6.248 mm ±0.076 mm (0.246 in ±0.003 in)
recommended to fit hole of 6.35 mm (0.25 in)
Insulation between leads and case; Magnesium oxide**
Leads: Nickel, 0.635 mm (0.025 in) diameter × 50.8 mm (2 in) long
| Part number |
Length |
V |
W |
W |
| HTR-25 |
25.4 mm (1 in) |
25 |
25 |
25 |
| HTR-50 |
25.4 mm (1 in) |
50 |
50 |
50 |
| HTR-25-100 |
25.4 mm (1 in) |
50 |
25 |
100 |
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*Nickel lead wires and internal construction may cause slight magnetic disturbance
**Dielectric strength of insulation is reduced when hot, forming leakage current |
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| Electric Tape for Use at Cryogenic Temperatures |
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Specifications at 25 ºC
Backing: Polyester film
Temperature class (upper limit): 403 K (130 ºC)
Total thickness: 0.064 mm (0.0025 in)
Dielectric breakdown: 5 kV
Insulation resistance: >1 MW
Breaking strength: 55 N (12.5 lb)
Elongation: 100% at break |
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| Ferrite Bead for High Frequency Filtering |
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Specifications
Material: Fair-Rite® 43
Impedance with wire passed once through bead:
110 W at 25 MHz, 225 W at 100 MHz
Impedance with wire passed twice through bead:
440 W at 25 MHz, 900 W at 100 MHz
Construction: 2 halves of a ferrite bead held
by a plastic clamp
Overall dimensions: 22.1 mm × 23.4 mm × 32.3 mm
(0.87 in × 0.92 in × 1.27 in)
Cable opening diameter: 10.2 mm (0.4 in)
Temperature range: 288 K to 308 K (15 ºC to 35 ºC)
Weight: 0.046 kg (0.1 lb) |
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