Bonded coil: WCM has extensive expertise in manufacturing bonded coils. This cyclindrical design is an inductor used in a test and measurement device. It has 7 mH of inductance and can handle up to 1 amp of current in a package only 1.6” in diameter and 0.65” in height. With no core, inductance is highly stable with temperature and excitation. WCM can manufacture bonded coils up to 24” in diameter and length, and as small as 0.2” in diameter. We are process capable with wire gauges from 40 awg to 16 awg. Insulation temperature rating standard is Class B 130 C with ratings up to Class H 180 C available.