The Weinschel AC9011 is a manual step attenuator that provides precise signal level control across DC to 4.0 GHz. Operating at 50 Ω nominal impedance, it delivers attenuation in 10 dB steps up to 90 dB maximum, making it suitable for laboratory and field signal conditioning. The unit handles 2 watts average input power at 25°C ambient (de-rated to 0.5 W at 125°C) and accepts 500 W peak pulses at 5 µsec width and 0.2% duty cycle.
Technical Specifications
• Frequency Range: DC to 4.0 GHz
• Attenuation Range: 0–60 dB or 0–90 dB in 10 dB steps
• Nominal Impedance: 50 Ω
• Maximum Input Power (Average): 2 W at 25°C; linear de-rating to 0.5 W at 125°C
• Maximum Input Power (Peak): 500 W (5 µsec pulse, 0.2% duty cycle)
• Insertion Loss (Max): < 2.5 dB at 4.0 GHz
• VSWR: 1.15:1 typical, DC to 4.0 GHz
• Power Coefficient: < 0.005 dB/dB/watt
• Temperature Coefficient: < 0.0004 dB/dB/°C
• Operating Temperature Range: −55°C to +125°C
• Repeatability: Better than 0.05 dB across frequency band
• Switch Life: Over 1,000,000 steps
• Weight: Approximately 200 g (7.1 oz)
– Key Features
• Passivated stainless steel body with gold-plated beryllium copper contacts
• SMA connectors (MIL-STD-348) in multiple orientations: female, male, right-angle female, right-angle male
• Clockwise shaft rotation for increasing attenuation
• Insertion loss and VSWR calibration data available
• Environmental performance to MIL-A-24215 (vibration, shock, humidity to 95%, altitude)
– Typical Applications
Signal attenuation in RF test benches, receiver gain control, power level conditioning, and filter network measurements from DC through microwave frequencies.
– Compatibility & Integration
Non-destructive mating with MIL-C-39012 connectors. Meets MIL-A-24215 environmental requirements.
