The 139642-H1112T is a pulse transformer designed for use in electronic devices. It is specifically designed for LAN 10/100 Base-T applications. This transformer is surface mountable, making it easy to integrate into circuit boards. With a compact size of 0.583" L x 0.460" W (14.81mm x 11.68mm), it can fit into tight spaces. The height when seated is 0.192" (4.88mm), ensuring a low profile design. The 139642-H1112T comes in a tape and reel package, with a standard package quantity of 350 pieces. It operates in a temperature range of 0°C to 70°C, making it suitable for various environments. This pulse transformer is compliant with ECCN EAR99 and has a standard HTSUS code of 8504.31.2000. Please note that the 139642-H1112T is now obsolete and has a limited availability in the market.