143-09J12S

The Coilcraft 143-09J12S is a fixed inductor from the 143 series, designed for reliable performance in electronic circuits. It offers a nominal inductance of 0.387 µH, with a minimum inductance of 0.328 µH and a maximum of 0.446 µH. The inductor has a minimum Q factor of 420 and a minimum self-resonant frequency of 390 MHz, indicating good performance at higher frequencies.

This component has a typical DC resistance of 17.1 mOhm and a typical current rating of 7.2 A. It is constructed with a white color code for identification and features 9.5 turns. The inductor is designed for through-hole mounting, ensuring a stable connection to the printed circuit board.

These variable inductors are precision molded in plastic to ensure constant winding pitch and a consistent relationship to the printed circuit board. They are economical, even in small quantities, and come in standard inductance values. Tuning is done by means of a threaded powdered iron core with a hex socket for easy adjustment. Plated brass shield cans with solderable tabs are optional. These parts can be ordered without cores for use as fixed inductors.