Equivalent & Substitute Parts for EP14 Trimmer Capacitor

Part Overview

The EP14 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 alternatives is essential for ongoing design support and production continuity. The AP14 serves as a direct substitute within the Knowles Voltronics product line, offering equivalent electrical performance with active product status.

Substiute Parts

EP14

Knowles VoltronicsIn Stock: 1068EP14 Datasheet

Current PartRFQ

AP14

Knowles VoltronicsIn Stock: 2118AP14 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP14 is classified as a direct substitute for the EP14 based on the following alignment of critical electrical and mechanical parameters:

• Capacitance Range: AP14 operates within 1–14pF, which encompasses the upper operational range of the EP14 (0.8–14pF). The minimum capacitance difference (0.2pF) is negligible for trimmer capacitor applications where fine adjustment is inherent to the design function.
• Voltage Rating: Both parts are rated for 125V operation.
• Dielectric Material: Both utilize air dielectric construction.
• Adjustment Type: Both feature side adjustment mechanisms.
• Mounting Configuration: Both are through-hole mounted components with identical physical dimensions (0.300" diameter, 0.500" maximum seated height).
• Operating Temperature Range: Both support –65°C to 125°C operation.
• Q Factor: Both maintain 3000 Q @ 100MHz performance.

Parameter Comparison

Engineering Selection Recommendations

The AP14 is the appropriate substitute for the EP14 based on product lifecycle status. The EP14 is classified as obsolete, whereas the AP14 maintains active product status with current manufacturing support. Both components share identical electrical specifications and mechanical form factors, ensuring direct functional equivalence in circuit applications.

The capacitance range difference (EP14: 0.8–14pF versus AP14: 1–14pF) represents a 0.2pF minimum variance. For trimmer capacitor applications where adjustment resolution is inherent to the component design, this variance falls within acceptable engineering tolerance and does not compromise circuit performance.

The AP14 is available in bulk packaging with 2025 units in current inventory, providing supply continuity for production requirements. The EP14, with 970 units in stock, represents remaining legacy inventory.

Frequently Asked Questions (FAQ)

Q: Can the AP14 directly replace the EP14 in existing circuit designs?

A: Yes. The AP14 provides direct functional substitution. Both components share identical voltage ratings, dielectric materials, adjustment mechanisms, mounting configurations, physical dimensions, temperature operating ranges, and Q factor specifications. The 0.2pF minimum capacitance difference is negligible in trimmer capacitor applications.

Q: What is the significance of the capacitance range difference between EP14 and AP14?

A: The EP14 minimum capacitance is 0.8pF, while the AP14 minimum is 1pF. This 0.2pF difference is immaterial for trimmer capacitor functionality, where the component is designed for fine adjustment across its range. Circuit designs utilizing the EP14 will operate identically with the AP14.

Q: Why is the EP14 classified as obsolete?

A: The EP14 has reached end-of-life status within the Knowles Voltronics product portfolio. The AP14 represents the active successor product, offering equivalent performance with ongoing manufacturing support.

Q: Are there packaging differences between EP14 and AP14?

A: The EP14 is supplied in standard packaging, while the AP14 is available in bulk packaging. Both components maintain identical through-hole form factors and mounting specifications. Packaging selection depends on production volume requirements.

Q: What compliance certifications apply to these components?

A: Both the EP14 and AP14 are classified under ECCN EAR99 and HTSUS 8532.30.0090. The AP14 is RoHS non-compliant and REACH unaffected. Moisture sensitivity level is not applicable to either component.