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RF Attenuators


Over 400 coaxial, surface mount, and MMIC attenuator models for 50-Ohm & 75- Ohm syetem including fixed attenuators, high-power attenuators, digital step / programmable attenuators, voltage variable attenuators and more!

  • DC passing and DC blocking models
  • Power handling up to 250W
  • Bandwidths spanning DC to 67 GHz
  • Excellent accuracy and repeatability
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   Table of Models

New Products

BW-W20-0.5W114+

  • Coaxial Attenuator
  • DC to 110 GHz
  • 1.0 mm Male to Female Connectors
  • Excellent VSWR, 1.3 typ.
  • 0.5 W Power Handling

BW-W10-0.5W114+

  • Coaxial Attenuator
  • DC to 110 GHz
  • 1.0 mm Male to Female Connectors
  • Excellent VSWR, 1.3 typ.
  • 0.5 W Power Handling

RCDAT-44G-30

  • USB & Ethernet Programmable Attenuator
  • 0.1 to 44 GHz
  • Fine resolution, 0.5 dB
  • Fast transitions, 100 µs
  • USB and Ethernet control
  • Daisy-chain control of up to 25 units

EDAT-67G-60

  • USB Daisy Chain Programmable Attenuator
  • Super wide bandwidth, 10 MHz - 67 GHz
  • High power handling (+26 dBm CW)
  • Daisy-chain control of up to 25 units
  • USB control and automation
  • Display of attenuation state on unit

BW-40N250W+

  • 40 dB Precision Fixed Attenuator
  • Wideband Operation, DC to 8000 MHz
  • High Power Handling, 250W
  • Excellent VSWR, 1.11 Typ.
  • Excellent Flatness, ±0.4 dB Typ.

BW-30N250W+

  • 30 dB Precision Fixed Attenuator
  • Wideband Operation, DC to 8000 MHz
  • High Power Handling, 250W
  • Excellent VSWR, 1.11 Typ.
  • Excellent Flatness, ±0.4 dB Typ.

BW-20N250W+

  • 20 dB Precision Fixed Attenuator
  • Wideband Operation, DC to 8000 MHz
  • High Power Handling, 250W
  • Excellent VSWR, 1.14 Typ.
  • Excellent Flatness, ±0.6 dB Typ.

K2-HAT-A+

  • Fixed Attenuators Kit
  • One unit each of 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 dB precision attenuators
  • Input power up to 2W Max.
  • Excellent VSWR, 1.20:1 to 1.35:1 typ.
  • Excellent flatness, 0.20 to 0.30 dB typ.

K1-HAT-A+

  • Fixed Attenuators Kit
  • One unit each of 3, 6, 10, 20 and 30 dB precision attenuators
  • Input power up to 2W Max.
  • Excellent VSWR,1.20:1 to 1.60:1 typ.
  • Excellent flatness, 0.20 to 0.60 dB typ.

BW-VF20-1W54+

  • Coaxial mmWave Fixed Attenuator
  • DC to 50 GHz
  • 2.4mm Female to Female Connectors
  • Excellent VSWR, 1.17 typ.
  • Passivated stainless steel connectors
  • 1W Power Handling

K2-UNAT-A+

  • Fixed Attenuators Kit
  • Wideband, 50Ω
  • 1 to 10, 15, 20, 30 dB attenuation
  • Type-N male & female connectors
  • Rugged Unibody construction
  • Small size 2.1”
  • Very low cost

K3-VAT-A+

  • Fixed Attenuators Kit
  • Wideband, 50Ω
  • Input power up to 2W Max
  • 3, 6 and 10 dB attenuation
  • SMA Male and Female connectors
  • Excellent VSWR, 1.20:1 to 1.40:1 typ.
  • Excellent flatness, 0.30 to 0.45 typ.
  • Length less than 1.5”

K2-VAT-A+

  • Fixed Attenuators Kit
  • Wideband, 50Ω
  • Input power up to 2W Max
  • 1 to 10 dB attenuation
  • SMA Male and Female connectors
  • Excellent VSWR, 1.20:1 to 1.45:1 typ.
  • Excellent flatness, 0.25 to 0.45 typ.
  • Length less than 1.5”

K1-VAT-A+

  • Fixed Attenuators Kit
  • Wideband, 50Ω
  • Input power up to 2W Max
  • 3, 6, 10, 20, 30 dB attenuation
  • SMA Male and Female connectors
  • Excellent flatness, 0.30 to 1.30 dB typ.
  • Length less than 1.5”

K1-UNAT-A+

  • Fixed Attenuators Kit
  • Wideband, 50Ω
  • 3, 6, 10, 15, 20 dB attenuation
  • Type-N male & female connectors
  • Rugged Unibody construction
  • Small size 2.1”
  • Very low cost

ZX76-44G-30-K+

  • Wideband Attenuator
  • Wideband, operates up to 43.5 GHz
  • Immune to latch up
  • High IIP3, 50 dBm
  • Low Insertion Loss
  • Good VSWR, 1.5:1 typ.
  • Glitch-less attenuation transitions
  • Dual or Single supply voltage: Vdd=+3.3V

QAT-SERIES

  • Microwave Precision Fixed Attenuators
  • Super bandwidth, Up to 50 GHz
  • Exceptional power handling, from 0.8 to 2W
  • Small Size, 2x2 mm

BW-40TMNF100W+

  • TNC / N-Type
  • 40dB Fixed Attenuator
  • Extremely wideband, DC to 4 GHz
  • Excellent VSWR, 1.30:1 typ.

BW-E2-1W653++

  • Precision Fixed Attenuator
  • Extremely Wideband, DC to 65 GHz
  • 1.85mm Female to 1.85mm Male connectors
  • Good VSWR, 1.2 @ 26.5 GHz, 1.3 @ 65 GHz typ
  • Outstanding accuracy, ±1.5 dB over full range

YAT-A-SERIES

  • Microwave Precision Fixed Attenuators
  • Wideband, DC to 18 GHz
  • Exceptional Power Handling, Up to 2W
  • Small Size, 2x2 mm

BW-S3W10+

  • Precision Fixed Attenuator
  • Wideband, DC to 24 GHz
  • Outstanding attenuation flatness
  • Excellent VSWR, 1.15:1 typ. up to 12.4 GHz

BW-S0.5W2+

  • Precision Fixed Attenuator
  • Wideband, DC to 18 GHz
  • Outstanding attenuation flatness
  • Excellent VSWR, 1.11:1 typ. up to 18 GHz

BW-E30-1W653+

  • 30dB Precision Fixed Attenuators
  • Extremely wideband, DC to 65 GHz
  • 1.85mm Female to 1.85mm Male connectors
  • Good VSWR, 1.2 @ 26.5 GHz, 1.3 @ 65 GHz typ.
  • Outstanding accuracy, ±1.5 dB over full range

BW-KM-2W44+ Series

  • Coaxial
  • Precision Fixed Attenuators
  • Extremely wideband, DC to 40 GHz
  • 2.92mm Male connectors
  • Outstanding attenuation flatness
  • Excellent VSWR, 1.10:1 typ.

BW-EX-1W653+ Series

  • Millimeter Wave
  • Precision Fixed Attenuators
  • Extremely wideband, DC to 65 GHz
  • 1.85mm Female to 1.85mm Male connectors
  • Good VSWR, 1.35 @ 26.5 GHz, 1.65 @ 65 GHz
  • Outstanding accuracy, ±1.5 dB over full range

KAT Series

  • Microwave Precision
  • Fixed Attenuators
  • Wideband, DC to 40 GHz
  • Exceptional Power Handling, Up to 2W
  • Small Size, 2mm x 2mm

KAT-D-SERIES

  • Millimeter Wave Precision
  • Fixed Attenuator Die
  • Ultra-wide band, DC to 43.5 GHz
  • Excellent power handling, up to 2W
  • Contiguous ground plane for easy installation

BW-VX-1W54+ Series

  • Coaxial Millimeter Wave
  • Precision Fixed Attenuators
  • Extremely wideband, DC to 50 GHz
  • 2.4mm Female - 2.4 mm Male
  • Excellent VSWR