Abstract: A transformer has a cover and a bobbin. The cover has a cavity and a bottom opening. The cavity is formed inside of the over. The bobbin is mounted inside the cavity in the cover and has two surfaces, multiple pins and multiple coils. The pins are mounted through the bobbin and protrude from the two surfaces of the bobbin. The coils are mounted between the pins and have wires connected to each other. After the coils are connected to pins and tested, the bobbin with the coils can be mounted in the cover so that the process of fabricating the transformer is easier.

Abstract: An RJ-45 socket has a base, a circuit board, a casing and a cover. The base has multiple leads extending through the base. The circuit board is mounted on the base and has multiple lead contacts, multiple electrical contacts and a circuit. The lead contacts are formed in the circuit board and connect respectively to the corresponding leads in the base. The electrical contacts are formed in the circuit board. The circuit is formed in the circuit board. The casing is mounted on the base above the circuit board and has a cavity and a contact assembly. The contact assembly has multiple contacts mounted in the socket. The contacts are connected respectively to the corresponding leads because the circuit in the circuit board electrically connects the electrical contacts respectively to the corresponding lead contacts.