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.
Engineering Support
Need a Quote or Technical Support?
Share the part number, required quantity and application requirements. Our engineering team can assist with product selection, configuration review and quotation support.
Product selection support
Custom configurations available
Specification and compatibility review





