Hammond 1503 Low Loss RF Choke Coil, ±10% Inductance Tolerance

The 1503 is a radio-frequency (R.F.) choke in the 1500-1521 Series. It is the type of component placed in series with a supply or bias path to let D.C. through while keeping RF energy out, as found in transmitters, receivers, amplifiers and test fixtures built by RF engineers and radio amateurs.

Across the series, chokes are wound on low loss ceramic or powdered iron forms, and inductance is held to +/- 10%. The supplied series table gives detailed values only for the 1501, 1504 and 1508; the 1503's own inductance, D.C. current, D.C. resistance, pie count and length are not included in the supplied data, so check those values before ordering it for a new design.

The 1503 carries UPC 623980289908 and UNSPSC 39121301, has a shipping weight of 0.1 lbs (0.05 kg) and is listed as RoHS and REACH compliant. It is a direct match for bills of materials and repair lists that already call out the 1503.

Hammond notes that the 1500-1521 R.F. choke line will soon be discontinued as a stocked series and is available while quantities last; for alternative solution assistance Hammond lists USA (716) 630-7030 and Canada and International (519) 822-2960.