0 dB SMP Cryogenic Fixed Attenuator DC–18 GHz 2 W VST-QU-SMP000202-18G

P/N: VST-QU-SMP000202-18G

  • For compact cryogenic signal routing
  • Near-through response with minimal added loss
  • SMP interface for high-density integration
  • Well suited to quantum and dilution refrigerator setups
  • Supports precision microwave paths through 18 GHz
Engineering Note
The VST-QU-SMP000202-18G is a 0 dB SMP cryogenic fixed attenuator for compact low-temperature RF paths that require controlled impedance with minimal nominal attenuation. It supports DC–18 GHz operation with a 2 W power rating, ±0.6 dB attenuation tolerance, and VSWR 1.45:1 max. Its compact SMP interface is suited to dense cryogenic microwave assemblies, quantum computing signal chains, dilution refrigerator systems, and other space-constrained low-temperature measurement setups.

Technical Specifications

Part Number VST-QU-SMP000202-18G
Product Type SMP Cryogenic Fixed Attenuator
Nominal Attenuation 0 dB
Attenuation Tolerance ±0.6 dB
Frequency Range DC–18 GHz
VSWR (Max) 1.45 : 1
Impedance 50 Ω
Power Rating 2 W
Connector Interface SMP-JK
Body Material Brass, gold-plated
Male Inner Contact Beryllium copper, gold-plated
Female Inner Contact Beryllium copper, gold-plated
Size Ø7.1 × 19.4 mm
Structure Inline SMP cryogenic fixed attenuator
Body Format 0–12 dB body format
Length 19.4 ± 1.0 mm
Diameter Ø7.1 mm
Compliance RoHS
Configuration Non-magnetic option available

Target Applications

Compact Cryogenic RF Systems
Suitable for compact low-temperature RF paths where limited space and stable impedance are both important.

Quantum Computing Assemblies
Used in quantum signal chains and dilution refrigerator assemblies requiring compact inline microwave components.

High-Density RF Packaging
A practical option for dense low-temperature RF packaging and compact microwave interconnect tuning where SMP format is preferred.

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