HL9444 Bias Tee (40 GHz, 175 mA)

$995.00 – $1,995.00

Datasheet PDF

The HL9444 is an ultra-broadband bias tee with maximum insertion loss of 1.25 dB to 40 GHz. This device blocks any existing DC signal and allows for the insertion of a DC bias current into a circuit with minimal perturbation of the impedance of a 50 ohm transmission line.

The HL9444 can be used for biasing amplifiers, lasers, optical modulators, and other devices. Applications include optical communication systems, high-speed data systems, level shifting, cascading, and interfacing between devices with incompatible DC operating points.

This part is available as matched pairs or individual units with breakdown voltage of 11 V or 30 V and a variety of connector configurations.

Available Options

Plug-Plug Plug-Jack Jack-Jack
11 V breakdown, matched pair HL9444-M-11-PP HL9444-M-11-PJ HL9444-M-11-JJ
30 V breakdown, matched pair HL9444-M-30-PP HL9444-M-30-PJ HL9444-M-30-JJ
11 V breakdown, single HL9444-U-11-PP HL9444-U-11-PJ HL9444-U-11-JJ
30 V breakdown, single HL9444-U-30-PP HL9444-U-30-PJ HL9444-U-30-JJ

NOTE: all plots shown at left are for options -M-30-JJ or -U-30-JJ. For other measured data, please see the S-parameter file below or contact HYPERLABS.

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Technical Specifications

Datasheet PDF    |   S-parameters (all options) ZIP

Bandwidth 35 kHz to > 40 GHz (opt. -11)
70 kHz to > 40 GHz (opt. -30)
Insertion Loss < 1.25 dB max to 40 GHz (opt. -JJ)
Return Loss 15 dB to 35 GHz (all options)
10 dB to 40 GHz (all options)
Amplitude Match ± 0.1 dB if purchased in matched pair
Connectors 2.92 mm, various configurations
ROHS compliance Yes, assembled with lead-free solder
Warranty 1 year, repair or replacement

Product Applications

  • Optical communication and high-speed data systems
  • Level shifting and cascading
  • Interfacing between devices with incompatible DC operating points

Data and Documentation