The 139627-H1081T is a pulse transformer designed for LAN 10/100 Base-T applications. It belongs to the Transformers - Pulse Transformers category and does not belong to any specific series. The transformer comes in a tape & reel package and has a size dimension of 1.000" L x 0.395" W (25.40mm x 10.03mm). It has a maximum seated height of 0.230" (5.84mm). The standard package quantity is 300 pieces. This surface mount transformer can operate in a temperature range of 0°C to 70°C. It has an ECCN classification of EAR99, indicating that it does not have any export control restrictions. The product is currently obsolete and may not be readily available in the market. The MSL level is 4, indicating a 72-hour floor life. The REACH status is unaffected. The HTSUS code for this product is 8504.31.2000. Manufactured by Pulse, the 139627-H1081T was a reliable choice for LAN applications.