M550B687K030AH , 680µF Hermetically Sealed Tantalum - Polymer Capacitors 30V M55 Module 25 mOhm 2.051" L x 1.992" W (52.10mm x 50.60mm). we specialize in KEMET M550B687K030AH electronic components. M550B687K030AH can be shipped within 24 hours after order.