Equivalent & Substitute Parts for EP14E Trimmer Capacitor

Part Overview

The EP14E is a 0.8–14pF trimmer capacitor manufactured by Knowles Voltronics, designed for side adjustment applications in through-hole mounting configurations. Rated for 125V operation with an air dielectric, this component is classified as obsolete. Due to its obsolete status, identifying functionally compatible substitute parts is essential for ongoing design support, production continuity, and system maintenance.

Substiute Parts

EP14E

Knowles VoltronicsIn Stock: 1111EP14E Datasheet

Current PartRFQ

AP14E

Knowles VoltronicsIn Stock: 944AP14E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP14E qualifies as a direct substitute based on the following alignment of critical parameters:

• Capacitance Range Compatibility: The AP14E operates within 1–14pF, which overlaps the upper 1–14pF portion of the EP14E range (0.8–14pF). Applications requiring minimum capacitance values below 1pF cannot use the AP14E.
• Voltage Rating: Both parts are rated for 125V operation.
• Adjustment Type: Both employ side adjustment mechanisms.
• Dielectric Material: Both use air dielectric construction.
• Mounting Configuration: Both are through-hole mounted components.
• Operating Temperature: Both support –65°C to 125°C operation.
• Q Factor: Both maintain 3000 Q @ 100MHz.
• Sealed Construction: Both feature sealed designs.

The primary distinction is the lower capacitance limit: EP14E extends to 0.8pF, while AP14E begins at 1pF.

Parameter Comparison

Engineering Selection Recommendations

The AP14E is an active production substitute for the obsolete EP14E. Both components share identical electrical and mechanical specifications across voltage rating, adjustment mechanism, dielectric type, mounting configuration, and thermal operating range. The AP14E carries ROHS3 compliance and REACH unaffected status, providing regulatory alignment for modern manufacturing environments.

Selection of the AP14E is appropriate for applications where the minimum required capacitance is 1pF or greater. For circuits requiring capacitance values between 0.8pF and 1pF, the AP14E cannot serve as a substitute due to its lower capacitance limit.

Frequently Asked Questions (FAQ)

Q: Can the AP14E directly replace the EP14E in all applications?

A: The AP14E is electrically and mechanically compatible with the EP14E for applications requiring capacitance values from 1pF to 14pF. If your circuit requires adjustment below 1pF, the AP14E is not suitable.

Q: What is the primary difference between these two parts?

A: The capacitance range differs: EP14E spans 0.8–14pF, while AP14E spans 1–14pF. All other electrical and mechanical parameters are identical.

Q: Why is the EP14E obsolete?

A: The EP14E has been discontinued by the manufacturer. The AP14E represents the active production alternative within the Knowles Voltronics trimmer capacitor portfolio.

Q: Are there any compliance differences between EP14E and AP14E?

A: The AP14E is certified ROHS3 compliant and REACH unaffected. Compliance status for the EP14E was not specified in available documentation.

Q: Will the AP14E fit the same PCB footprint as the EP14E?

A: Both parts use through-hole mounting with side adjustment. Physical dimensions were not provided in the technical specifications; verify mechanical compatibility through component datasheets or physical measurement if footprint-critical applications are involved.