EMX ENTERPRISES Rugged 1/3N Lithium battery holders for surface or through-hole mounting expand the availability of premium battery holders. Devices come with durable, heat resistant, UL 94V-0 rated Nylon housings are suitable for all soldering and reflow operations. SMT version (Catalog #498) has gold-plated Pphosphor bronze contacts. THM version (Catalog #497) incorporates tin-plated phosphor bronze contacts and the heat resistant nylon housings. THM types mount directly on pcbs, securely positioned during wave soldering and placement.