Bourns 1140 Series High Current Chokes The 1140 series from Bourns are fixed inductors (chokes) that feature very high current capacity. Constructed with a ferrite bobbin core with an epoxy coating, these high current chokes also have VW-1 rated shrink tubing to cover the winding. These high current chokes are self-leaded, with fixed lead spacing and a centre hole that enables mechanical mounting. 2500 Vrms dielectric withstanding voltage from terminal to shrink tube cover
1000 Vrms dielectric withstanding voltage from terminal to core