Feedthrough capacitors provide high-frequency bypass filtering at the point where wires and connectors penetrate an enclosure — eliminating RF leakage through chassis seams and cable penetrations in medical equipment, military communications, scientific instruments, radar systems, and precision test equipment. Our feedthrough capacitor inventory covers ceramic (disc and tubular) and mica feedthrough types, single-disc, two-disc, and three-disc configurations, and filtered bulkhead connectors from Johanson (Jupiter series), Murata (NFM series), Tusonix (BCF series), API Technologies (Speyer), and Knowles — with capacitance from 10pF to 10µF, voltage ratings from 50V to 500V DC, and current ratings from 1A to 100A.
High-voltage and high-current feedthrough capacitors for military and aerospace applications (MIL-PRF-39011) and filtered circular connectors (MIL-DTL-38999 filtered) are frequently on long lead times or controlled distribution. Welllinkchips stocks standard feedthrough capacitor types and can source obsolete or custom configurations needed for legacy military, aerospace, and medical imaging equipment repair.