TestParts.com Adds Fixed Coaxial Attenuators
03/25/2011

TestParts.com has added several new fixed coaxial attenuators to its already extensive offering of RF microwave parts.

Online PR News – 25-March-2011 – – TestParts.com has added several new fixed coaxial attenuators to its already extensive offering of RF microwave parts. The attenuators are available with attenuation of 1 to 30 dB with a frequency range of DC-6 GHz, DC-12.4 GHz and DC-18 GHz. Power ratings of 1-Watt, 2-Watts, and 5-Watts. Available with BNC, SMA, and TypeN coaxial connectors.

These coaxial attenuators display very tight tolerances in the broad DC to 18 GHz band, and each family contains 15 models with nominal attenuation from 1 to 10dB in 1dB steps, plus 12, 15, 20, 30, and 40dB values. At 25°C ambient, the 5-watt models have the ability to handle 5 watts average power (derate linearly to 2W at 100°C), while the 2-watt models are made for 2 watt circuits (derate linearly to 0.5W at 100°C). Peak power for both 5 and 2 watt units is 125 watts maximum. The 5 and 2 watt ratings are very helpful in handling the needs of today’s communication requirements. At 25°C, accuracy is ±0.40dB for the 1 through 6dB models, ±0.60dB for 7 to 20dB units, and ±0.85dB for the 30 and 40dB attenuators. Accuracy specifications include power and frequency variations up to 12.4GHz. Above 12.4GHz, add 0.5dB (typ) to accuracy. By maintaining low variation of attenuation with power and frequency, time consuming recalibrations in precision measurement set-ups are very minimal or nil. VSWR is excellent at 1.15:1 typical, which means these precision attenuators can be calibrated out very easily so as not to affect the device under test (VSWR and attenuation vs. frequency curves for 3, 6, 10, 20, and 30dB attenuation shown in Figure 2). Operating temperature range is -55°C to +100°C, as is storage temperature.

Established in 2002, TestParts.com sells quality RF-Microwave parts to the telecom industry, the military, intuitions of higher learning, amateur radio operators and many others. The company routinely stocks more than 35,000 RF parts including coaxial adapters, connectors, and cables.

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