With the introduction of new Catalog No. 54, a low profile, thru-hole PC Battery Clip for Lithium-Ion size cells from 17-19mm diameters, Keystone Electronics has met increasing demands for accommodating higher energy, lower weight, rechargeable batteries placed in mobile products.Engineered to withstand the rigorous use associated with recharging cycles, in addition to shock and vibration, the clip features a 3-legged, THM design for extra strength and stability plus low profile placement into dense PC boards. This new catalog No. 54 not only holds the 3.7 Volt rechargeable batteries, but will also accommodate the A, 2/3A, 17335, 17450, 17500, 17650, 18500 and 18650 size cells.The design is manufactured from .012”(.30mm) thick, spring steel, with Tin Nickel plate finish. It holds battery cells firmly and securely in position and is specifically suited for higher energy, lower weight portable electronics for medical, telecommunications and industrial usage.