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8493A Coaxial Fixed Attenuator, DC to 12.4 GHz

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Starting From US$ 302

Typical Configuration  

Typical Configuration

8493A Coaxial attenuator, dc to 12.4 GHz, SMA

  • 8493A-030 30 dB attenuator
  • R-51B-001-C Return to Keysight Warranty - 1 year


Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications

Superior RF Performance

  • Frequency Range: DC to 12.4 GHz
  • Maximum SWR: See table below for Maximum SWR Specifications

Power handling

  • Maximum Input Power: 2 W (average), 100 W (peak)


  • Connector: SMA male, female


The Keysight 8493A coaxial fixed attenuator provides precision attenuation, flat frequency response, low SWR over broad frequency range at a low price. The attenuator is available in nominal attenuations of 3 dB and 6 dB, also 10 dB increments from 10 dB to 30 dB. This attenuator is swept-frequency tested to ensure it meets specifications at all frequencies. Calibration points are provided on a nameplate chart attached to each unit.

Maximum SWR Specifications
Attenuator Accuracy SWR SWR
  dc to 8 GHz 8 to 12.4 GHz
3 dB 1.25 1.35
6 dB 1.2 1.3
10 dB 1.2 1.3
20 dB 1.2 1.3
30 dB 1.2 1.3

For more information about fixed rf attenuators, please visit Attenuators, Fixed.