This part is a kind of semiconductor called 135D.

Function of this product has Wet Tantalum Capacitors Tantalum-Case.

Manufacturers : Vishay Siliconix

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135D Vishay Wet Tantalum Capacitors Tantalum-Case with Glass-to-Tantalum Hermetic Seal For - 55 °C to + 200 °C Operation FEATURES Terminations : standard Tin/lead (SnPb), 100 % Tin (RoHS compliant) available Standard and Extended Ratings Available RoHS* COMPLIANT Model 135D tantalum-case tantalum electrolytic capacitors incorporate the advantages of all the varieties of electrolytic capacitors and eliminate most of the disadvantages. These units have a 3 volt reverse voltage capability at + 85 °C and a higher ripple current capability than any other electrolytic type with similar combinations of capacitance and case size. Designed for the aerospace applications, this capacitor was developed under partial sponsorship of the Marshall Space Flight Center, National Aeronautics and Space A [ ... ]

135D PDF Datasheet Download