The MPD (Memory Protection Devices) Battery Retainer is a high-quality battery holder designed for use with coin cell batteries. This battery retainer features a surface mountable design and can be used with a variety of coin cell batteries, including those with a size of 12.0mm. The retainer is designed to hold the battery securely in place and features a height of 0.125" (3.17mm) above the board. The battery retainer is part of the BK-885 series and is compatible with 1216, 1220, and 1225 batteries. This battery retainer is ideal for applications that require a high-quality battery holder that is surface mountable and compatible with a wide range of coin cell batteries.