Hammond 196D25 Dual-Coil 1.2mH 25A / 0.3mH 50A DC Choke

The 196D25 is a dual-coil heavy current chassis mount choke rated 1.2 mH at 25 A DC when series connected, or 0.3 mH at 50 A DC when parallel connected. With two coils on one core, the 196 Series lets a designer choose between higher inductance and higher current using the same part.

Winding resistance is listed as 0.005 ohms on the part page and 0.006 ohms each winding in the series ordering table; no insulation class is given. The open core and coil assembly mounts through a 4-slot bracket. Overall dimensions are A 3.75 in (95 mm), B 4.25 in (108 mm), C 3.13 in (80 mm), D 3.13 in (80 mm) and E 2.75 in (70 mm), with 0.28 x 0.56 in (7 x 14 mm) mounting slots.

The 196D25 weighs 6.45 lbs (2.93 kg), per both the series table and the part page shipping weight.

Across the 195-196 Series, inductance and resistance are held to a 15% tolerance, inductance is measured at rated D.C. current, and connections are made to a screw terminal or heavy copper tabs with holes. The series is rated for operation from -40C to 85C and storage from -40C to 105C, with a recommended maximum operating voltage of 600 VAC winding to core. Chokes in the series are hipot tested at 2,500 VAC. The chokes are UL approved under Type 3AH, E207860, 30V7, and this part is listed as RoHS and REACH compliant.