HL9444 Broadband Bias Tee (35 kHz to 40 GHz, 175 mA)

$995.00$1,995.00

Datasheet PDF S-parameters

The HL9444 is an ultra-broadband bias tee with a maximum insertion loss of 1.55 dB from 35 kHz to 40 GHz.

These devices block 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.

These devices can be used for biasing amplifiers, lasers, optical modulators, and other devices.

Applications include 112 Gbps PAM4 communications systems, 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.


Key Specifications (typical)
Bandwidth 35 kHz to 40 GHz (opt. -11)
70 kHz to 40 GHz (opt. -30)
Amplitude Match ± 0.1 dB, f ≤ 40 GHz (opt. -M)
Phase Match ± 4 degrees, f = 40 GHz (opt. -M)
Insertion Loss < 1.55 dB, nominal, f ≤ 40 GHz
Return Loss < 15 dB, f ≤ 35 GHz
Max Current 175 mA
Connectors 2.92 mm
RoHS Compliant Yes
REACH Compliant Yes
Warranty 1 year, repair or replacement

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