M550B128K040TT , 1200µF Hermetically Sealed Tantalum - Polymer Capacitors 40V M55 Module 20 mOhm 2.051" L x 1.992" W (52.10mm x 50.60mm). we specialize in KEMET M550B128K040TT electronic components. M550B128K040TT can be shipped within 24 hours after order.