... 2.Lead free RoHS compliant 3.Good after sale service Magnetic ring:Specifications:1.Material:Ferrum,Nickle,Aluminium/Ferrum,Silicon,Aluminium2 ... conditions6.Working temperature:-55°C to 125°CFeatures:1.Outstanding magnetic property, low power loss, high flux density,good price2. ... is the best choice for power switches choke coil and resonance inductor, can also be used for other power supplies.Be ...