The ML-621S/ZTN is a rechargeable lithium coin battery from Panasonic. It offers a rated voltage of 3V and a capacity of 5mAh, making it suitable for various small electronic devices. This battery has a compact size of 0.27" diameter and 0.09" height (6.8mm x 2.2mm) and requires a holder for installation. It comes in a bulk package, with a standard package quantity of 2,000 pieces. The ML-621S/ZTN is compliant with ECCN EAR99 and is unaffected by REACH regulations. With a fake threat percentage of 53% in the open market, it is important to source this battery from reputable suppliers. This rechargeable coin battery is suitable for applications where compact size and reliable power source are required.