Pasternack Enterprises

Same-Day Shipping of +40,000

RF and Microwave Products


Official Pasternack

Distributor for

UK and Ireland

Pasternack Bias Tees

Bias Tees


Pasternack bias tees (aka bias Ts) are passive, coaxial components used

primarily in applications where injection of DC current or voltage into RF circuits

is required. Bias tees are designed to inject DC current into an RF circuit without

affecting the RF signal through the main transmission path. Our bias tee products are

often used for applications where DC power is needed to power amplifiers on antennas

or other RF circuits. The “tee” in the name is derived from the shape of the 3 ports which is

typically in the shape of the letter “T”.


50 Ohm bias tees (bias Ts) from Pasternack are available with two different bias connector designs which include solder pin and SMA female. Other bias T connector configurations include 2.4mm, 2.92mm, 3.5mm, Type N and SMA. Our bias tees have maximum voltage ratings between 24 volts and 100 volts. Maximum DC current for our bias tee product line range from 200 mA to 7,000 mA (milliamps). Many of the Pasternack RF bias tees are RoHS and REACH compliant.


Our ISO 9001:2008 registered facility ships all bias tees / bias Ts from stock the same day you order them. Pasternack offers the largest in-stock inventory of RF, microwave and millimeter wave components available for same day shipping from our location. Expert technical support and friendly customer service personnel are always here to assist you. United Kingdom customers can contact Pasternack by e-mail at and or by calling +1-949-261-1920 from the UK).


For local technical support and to purchase bias tees in the United Kingdom,

please contact SpecTech Ltd. at (44) 01420 544789




TEL:  (44) 01420 544789

FAX: (44) 01420 544788

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