SFJEC2K00331MC1 Equivalent & Substitute Parts

Part Overview

The SFJEC2K00331MC1 is a 330 pF feed-through capacitor rated for 2000V (2kV) with 15 A current handling capability in an axial, bushing configuration. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The substitute part SFJNC2K00331MC1 represents the active production equivalent from the same manufacturer, maintaining identical electrical specifications while transitioning to current manufacturing standards.

Substiute Parts

SFJEC2K00331MC1

Knowles SyferIn Stock: 1131SFJEC2K00331MC1 Datasheet

Current PartRFQ

SFJNC2K00331MC1

Knowles SyferIn Stock: 1209SFJNC2K00331MC1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SFJNC2K00331MC1 qualifies as a direct substitute for the SFJEC2K00331MC1 based on the following matching parameters:

• Capacitance value: 330 pF (identical)
• Voltage rating: 2000V (2kV) (identical)
• Current rating: 15 A (identical)
• Temperature coefficient: C0G, NP0 (identical)
• Operating temperature range: -55°C to 125°C (identical)
• Insertion loss: 13 dB @ 100 MHz (identical)
• Package configuration: Axial, Bushing (identical)
• Physical dimensions: 0.386" Dia × 0.370" L (identical)
• Tolerance: ±20% (identical)
• RoHS compliance: ROHS3 Compliant (identical)

The primary distinction between these parts is product status and thread size specification. The SFJEC2K00331MC1 uses a 1/4-28 thread, while the SFJNC2K00331MC1 uses an M6×0.75 thread. Both thread configurations are mechanical interface specifications for the bushing mounting system and do not affect the electrical performance of the capacitor.

Parameter Comparison

Engineering Selection Recommendations

The SFJNC2K00331MC1 is the appropriate selection for new designs and component replacement applications. This part maintains active production status with Knowles Syfer, ensuring long-term availability and supply chain stability. Both parts carry identical ROHS3 compliance and EAR99 export classification, meeting regulatory requirements for equivalent applications.

The transition from SFJEC2K00331MC1 to SFJNC2K00331MC1 reflects standard manufacturing evolution within the Knowles Syfer feed-through capacitor product line. The electrical and thermal performance characteristics remain unchanged, supporting direct functional substitution in existing circuit designs.

Thread size specification (1/4-28 versus M6×0.75) represents the only mechanical interface difference and must be evaluated against the mounting hardware and panel specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can SFJNC2K00331MC1 replace SFJEC2K00331MC1 in existing designs?

A: Yes, the SFJNC2K00331MC1 provides electrical and thermal equivalence. Mechanical compatibility depends on the bushing thread specification. If the existing design uses 1/4-28 threading, the mounting interface requires adaptation to accommodate M6×0.75 threading.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active status indicates current manufacturing and ongoing availability from Knowles Syfer. Obsolete status indicates discontinued production. Transitioning to the active equivalent ensures supply chain continuity and access to current manufacturing quality standards.

Q: Are the electrical specifications identical between these parts?

A: Yes. Capacitance, voltage rating, current rating, temperature coefficient, operating temperature range, insertion loss, and tolerance specifications are identical. These parts are electrically interchangeable.

Q: What is the impact of the different thread sizes?

A: Thread size affects only the mechanical mounting interface. The 1/4-28 UNF thread on the SFJEC2K00331MC1 differs from the M6×0.75 metric thread on the SFJNC2K00331MC1. Panel and mounting hardware must accommodate the specified thread configuration.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and classified as EAR99 for export purposes. Both carry the same HTSUS code (8536.30.8000).