The BHAA-POL is a battery holder that accepts (1) AA battery. BHAA-POL offers polarity protection. By not having springs, and having pressure contacts, the BHAA-POL has increased conductivity and less room for error when the battery is placed in the holder. It sits 19.80 mm above the PCB and is made from black PBT with glass fill. The BHAA-POL is RoHS 2 compliant for worldwide distribution and surpasses ANSI/EIA standards, guaranteeing quality. The operating temperature for this part is from -55°C to +180°C. The BHAA-POL can be mounted using 2-56 machine screws. Double sided tape and/or adhesive work well also. The pressure contacts are 301 spring temper stainless steel, nickel plated overall.