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Bias Tees Model Number: K250/V250

Bias Tees
Model Number: K250/V250
Frequency Range: 100 MHz to 60 GHz


These bias tees are designed for applications where both DC and RF signals must be applied to a device under test. They are particularly suited for active device measurements. DC voltages of up to 30 volts at 0.5 amps may be applied to test devices with negligible effect on RF performance. Low RF throughline loss(<1 dB) and low return loss ensure negligible effect on measurements up to 60 GHz. An RF input DC block isolates the input port from the applied bias voltage.

  • Broadband, 0.1 to 60 GHz coverage
  • Low SWR, low insertion loss
  • K Connector® and V Connector® availability




Frequency Range

0.1 to 40 GHz1

0.1 to 60 GHz1

Insertion Loss

1.2 dB typical

2.2 dB typical

Return Loss

15 dB min to 20 GHz
10 dB min to 40 GHz

13 dB min. to 20 GHz
9 dB min. to 40 GHz
8 dB min. to 60 GHz

RF Power

1 W max.

1 W max.

DC Voltage

30 V max.

30 V max.

DC Current



DC Port Isolation

20 dB at 0.1 GHz
40 dB at 0.5 GHz

20 dB at 0.1 GHz
40 dB above 0.5 GHz

RF Connectors

Input: K(m)
Output: K(f)

Input: V(m)
Output: V(f)

DC Connectors



1 Usable between 0.04 to 0.1 GHz with degraded performance

Temperature range: 0°C to +70°C

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Related Literature / Software:

  • Microwave Connector Thread Gaging Technical Note
  • Data Sheet
  • Electronic Measuring Instruments Catalog
  • Catalog
  • Precision RF & Microwave Components Catalog
  • Catalog
  • Gauging Sets for Models 01-161, -162, -163, and -164 User's Guide
  • User Guide

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