The 9643001165 is a 43-material ferrite bobbin ground core with thermo-set plastic coating, engineered for applications requiring relatively low but stable inductance values. This bobbin features an inductance factor (AL) of 17.5 nH ±10% and is designed for high-frequency applications with a winding area (Aw) of 0.12 cm². The thermo-set plastic coating provides electrical insulation with a minimum breakdown voltage of 500 Vrms and adds a maximum of 0.5 mm to the dimensions. Key dimensional specifications include a length of 12.7 mm, outer diameter of 10 mm, and a weight of 1.3 g. This bobbin is ideal for signal processing, filtering, and impedance matching circuits where economical, stable inductance performance is required.