Knowles Syfer is a manufacturer represented in Maketronics sourcing data for electronic components used in production, maintenance, repair, and long-life system support. This page focuses on procurement reality: available parts, lifecycle risk, sourcing complexity, and verified supply options for obsolete, discontinued, and hard-to-find Knowles Syfer components.
| Image | Part Number / Manufacturer | Description / Specs | MOQ | Datasheet | RFQ | |
|---|---|---|---|---|---|---|
| SFJEL2000684MX1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 0.68UF 200V AXIAL | 1 | ||||
| SFJEL3000474MX1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 0.47UF 300V AXIAL | 1 | ||||
| SFJEL2000684MX0 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 0.68UF 200V AXIAL | 1 | ||||
| SFJEL3000474MX0 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 0.47UF 300V AXIAL | 1 | ||||
| SFJEL3K00151MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 150PF 3KV AXIAL | 1 | ||||
| SFJEL2K00102MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 1000PF 2KV AXIAL | 1 | ||||
| SFJEL3K00151MC0 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 150PF 3KV AXIAL | 1 | ||||
| SFJEL2K00102MC0 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 1000PF 2KV AXIAL | 1 | ||||
| SFJEL2K00681MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 680PF 2KV AXIAL | 1 | ||||
| SFJEL2K00681MC0 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 680PF 2KV AXIAL | 1 | ||||
| SFJEL2K00471MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 470PF 2KV AXIAL | 1 | ||||
| SFJEL1K00683MX1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 0.068UF 1KV AXIAL | 1 | ||||
| SFJEL3K00101MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 100PF 3KV AXIAL | 1 | ||||
| SFJEL2K00331MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 330PF 2KV AXIAL | 1 | ||||
| SFJEC3K00151MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 150PF 3KV AXIAL | 1 | ||||
| SFJEL2K00471MC0 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 470PF 2KV AXIAL | 1 | ||||
| SFJEL1K00683MX0 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 0.068UF 1KV AXIAL | 1 | ||||
| SFJEL3K00221MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 220PF 3KV AXIAL | 1 | ||||
| SFJEC2K00102MC1 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 1000PF 2KV AXIAL | 1 | ||||
| SFJEL3K00101MC0 Manufacturer: Knowles Syfer Category: Feed Through Pass Through Capacitors | CAP FEEDTHRU 100PF 3KV AXIAL | 1 |
Knowles Syfer background details are maintained for procurement context rather than general company history. Founded year: not publicly confirmed in this database. Headquarters or primary country record: global electronics markets. The practical sourcing relevance is how its component portfolio remains designed into long-life systems after production availability changes.
Knowles Syfer components may span multiple electronic categories depending on the product family, including Analog ICs, Power Management ICs, Microcontrollers, Connectors, Memory, Signal Chain Components. Buyers typically evaluate these parts by package, suffix, temperature grade, lifecycle status, compliance requirement, and acceptable alternate rules.
Knowles Syfer parts are commonly sourced for industrial automation, automotive electronics, medical devices, aerospace and defense systems, communications equipment, repair programs, and production continuity projects where exact component identity matters.
Even major manufacturers revise portfolios as technologies, packages, fabs, and demand patterns change. For long-life equipment, this can leave approved designs dependent on obsolete, EOL, or limited-availability Knowles Syfer parts long after the original production window has closed.
After EOL, availability can move into fragmented supplier channels. Common risks include reduced traceability, mixed lots, remarking, counterfeit exposure, inconsistent storage history, and price volatility caused by scarcity.
Supplier Intelligence Layer: manufacturer-specific supplier mapping, performance-based supplier selection, and quote-level monitoring. Quality Control Layer: 30-100x Digital Visual Inspection, risk-based advanced testing aligned with AS6081 and AS6171, and ISO/IEC 17025 laboratory support where required. Transaction Control Layer: escrow-based procurement, controlled payment release, and buyer-side protection.
Maketronics supports sourcing of obsolete, discontinued, and hard-to-find components from Knowles Syfer through a globally distributed, performance-governed supplier network.
Analog ICs, Power Management ICs, Microcontrollers, Connectors, Memory, Signal Chain Components
