The Weinschel 47 is a fixed coaxial attenuator engineered for signal attenuation across DC to 18 GHz. Built to MIL-DTL-3933 environmental specifications, it delivers reliable performance in demanding RF applications requiring precise signal control. The unit features 50-ohm nominal impedance, available in standard attenuation values of 3, 6, 10, 20, 30, and 40 dB, with custom values obtainable on request.
Technical Specifications
Frequency & Impedance
• Frequency range: DC to 18 GHz
• Nominal impedance: 50 ohms
• Attenuation accuracy: ±1.00 dB (3–30 dB models); ±1.20 dB (40 dB model)
Power Handling
• Average power: 50 W maximum at 25°C ambient, de-rated linearly to 5 W at 125°C (3 dB model: 100 W unidirectional)
• Peak power: 1 kW (5 µsec pulse, 2.5% duty cycle)
• Power coefficient: < 0.0003 dB/dB/W (unidirectional)
VSWR Performance
• 3, 6 dB models: 1.25 (DC–8.0 GHz), 1.35 (8.0–12.4 GHz), 1.45 (12.4–18.0 GHz)
• 10, 20, 30, 40 dB models: 1.20 (DC–8.0 GHz), 1.25 (8.0–12.4 GHz), 1.35 (12.4–18.0 GHz)
Environmental
• Operating temperature: −55°C to +125°C
• Temperature coefficient: < 0.0004 dB/dB/°C
• RoHS compliant
– Key Features
• Passivated stainless steel connectors with gold-plated BeCu or stainless steel contacts
• Type N, SMA, TNC, or 3.5 mm connector options per MIL-STD-348A
• Black finned aluminum alloy body
• Compact dimensions: 101.20 mm length × 38.1 mm diameter
• Weight: approximately 0.21 kg
• Low intermodulation option available
– Typical Applications
Signal attenuation in broadband RF systems, test and measurement setups, and military/aerospace environments requiring MIL-DTL-3933 compliance.
– Compatibility & Integration
Connectors mate nondestructively per MIL-PRF-39012 and MIL-C-39012 standards. 3.5 mm variants compatible with SMA and 2.92 mm interfaces.
