Hammond 156LA 7H 75mA Filter Choke, 400V DC Open Bracket

Part 156LA is a channel-mounted D.C. reactor with 7H of inductance and a 75 ma. D.C. current rating. It belongs to the 153-159 Series of low to medium current filter chokes, which the manufacturer positions for high voltage power supply filtering. The 156LA raises the inductance of a 75 ma. choke to 7H (241 ohms), and is built on the larger C9H frame rather than the C6H frame used by most 156 parts.

Winding resistance is 241 ohms (+/- 15%) and the maximum operating voltage is 400 V DC. Inductance is measured at the rated D.C. current; expect less inductance at slightly higher currents and more at lower currents, so size the choke to your actual load current.

Construction uses an economical open bracket channel mount. Units are vacuum impregnated with polyurethane varnish for quiet operation and long life, every unit is Hipot tested (100%) at 1,500 VAC, and leads are a minimum of 5" long.

Its drawing gives dimensions A 3.25" (82.6 mm), B 1.75" (44.5 mm), C 2" (50.8 mm) and D 2.81" (71.4 mm), with a weight of 1.1 lbs / 0.5 kg. The part page lists a shipping weight of 1 lbs (0.45 kg), and the 156LA is RoHS and REACH compliant (UNSPSC 39121301, UPC 623980207926). The drawing and series table give a unit weight of 1.1 lbs (0.5 kg); the part page lists a shipping weight of 1 lbs (0.45 kg).