Switching power transformer. Horizontal EI19 2+2 pin bobbin. Bobbin Size=18.2mmX15.0mmX17.3mm.Pin pitch1=15.24mm. Pin pitch2=9.4mm. Parallel Distance=10.16mm. We produce and design EI16 electronic transformer for customer, mainly used in power supplies, lighting, UPS, computers, telecom communication systems, welding machines and other industries.