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Amplifiers / Materials/Packages / Passive Components / Semiconductors / Integrated Circuits / Subsystems and Systems

Low Profile Attenuators

January 17, 2011
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Low-Profile Mountable Fixed Coaxial Attenuator
MODEL WA72
DC – 8.5 Bi-directional, GHz 50 WATTS

Features
Designed to comply with Mil-A-3933. Bidirectional in power. Conductive Cooling. Flat base with mounting holes.
Connectors: Type N / SMA: stainless steel M/F connectors per MIL-STD-3448A, interface dimensions mate nondestructively with MIL-C-39012.

Specifications
Nominal Impedance: 50 ohms
Frequency Range: DC – 8.5 GHZ
Nominal dB Value: 1 – 40 dB
Deviation (± dB) Power: 50W CW average bi-directional to 25°C; de-rated linearly to 2.5 W at 125°C. Peak power of 5Kw; 5 μsec pulse width; 0.5% duty cycle.
Power Sensitivity: < 0.005 dB/dB x W
Temperature Range: -55°C to 125°C
Temperature Coefficient: < 0.0004 dB/dB x °C
Calibration: Insertion Loss and VSWR performed at DC, 2.0, 4.0, and 8.5 GHz. All calibration data is available at additional cost.
Weight: .14 kg/5 oz.


Low-Profile Mountable Fixed Coaxial Attenuator
Model WA61 & WA62
DC—4.0 GHz WA61 150 Watts
DC—8.5 GHz WA62 150 Watts

Features
Designed to meet MIL-A-3933 environmental specification. Conduction cooled.

Specifications
Nominal Impedance: 50 ohms
Frequency Range: DC -8.5 GHz
Nominal dB Values: 3-40 dB
Power Sensitivity: < 0.005 dB/dB/W Unidirectional in power.
Power Rating: 150 watts average. Maximum rated average power to 25°C ambient temperature, derated linearly to 15 watts at 125°C. 5 kilowatt peak (5 μsec pulse width; 1.5% duty cycle).
Temperature Range: -55°C to +125°C
Temperature Coefficient: < 0.0004 dB/dB/°C
Calibration: Insertion Loss and VSWR performed at DC, 2.0, 4.0, and 8.5 GHz. Option 890 or custom calibration data available at additional cost.
Construction: Black aluminum alloy body with passivated stainless steel connectors. Gold plated beryllium copper female contacts.
Connectors: Type N, DIN 7/16mm, or 4.1/9.5mm stainless steel M/F connectors per MIL-STD-348A, interface dimensions mate nondestructively with MIL-C-39012.


Weight:
Type N = 1.5 kg/ 3.3 lb.
7/16 = 1.7 kg/ 3.7 lb.
4.1/9.5 = 1.6 kg/ 3.5 lb.

Physical Dimensions:
Length: 177.3 (6.9)
Width: 50.8 (2.0)
Height: 38.1 (1.5)
Note: Dimensions are given in mm (inches) unliess otherwise specified.

TERMINATION MODEL WA1451
DC – 8.5 GHz 500 WATTS

Features
Stainless Steel Type N, 7/16mm, 4.1 M/F connectors per MIL-STD-348A, interface dimensions mate nondestructively with MIL-C-39012.

Specifications
Nominal Impedance: 50 ohms
Frequency Range: DC – 8.5 GHz
Operation: Horizontal or Vertical
Power Rating: 500 watt maximum rated average power to 25°C ambient temperature, mounted orizontally, derated linearly to 50 watts at 125°C, 5 kilowatt peak (5 μsec pulse width; 5% duty cycle).
Temperature Range: -55°C to +125°C.
Construction: Passivated stainless steel connectors with black fined aluminum body. Gold plated beryllium copper female contacts or passivated stainless steel male contacts.

Weight:
Type N = 3.64 Kg/ 8 lbs.
7/16mm = 3.72 Kg/8.2 lbs.

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