Suitable for telecom, computer, defense, and aerospace applications, M55 Module Polymer Hermetic Seal (PHS) capacitors in epoxy housing incorporate benign failure mode and provide stable ESR and capacitance retention. Targeting mission-critical, high-capacitance and -voltage applications, M550 and M551 Modular Series are manufactured by placing T550 or T551 Polymer Hermetic Seal capacitors in parallel. Respectively, M550 and M551 Series are rated at 105 and 125°C.