EB14 Trimmer Capacitor Equivalent & Substitute Parts

Part Overview

The EB14 is a 0.8–14pF trimmer capacitor manufactured by Knowles Voltronics, designed for general-purpose applications requiring variable capacitance adjustment. This component features top adjustment, air dielectric, and through-hole mounting with a rated voltage of 125V and operating temperature range of –65°C to 125°C.

The EB14 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and field service applications.

Substiute Parts

EB14

Knowles VoltronicsIn Stock: 754EB14 Datasheet

Current PartRFQ

AB14

Knowles VoltronicsIn Stock: 871AB14 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EB14 is determined by the following critical parameters:

• Capacitance Range: The substitute must accommodate the required capacitance values within the application circuit. The EB14 operates from 0.8–14pF; substitutes must cover this range or provide overlap sufficient for the intended function.
• Voltage Rating: The substitute must maintain or exceed the 125V rated voltage to ensure safe operation under specified electrical stress.
• Adjustment Type: Top adjustment is required to maintain mechanical compatibility with existing designs and adjustment procedures.
• Dielectric Material: Air dielectric must be preserved to maintain electrical performance characteristics, including Q factor and frequency response.
• Physical Dimensions: The 0.300" diameter and 0.480" maximum seated height must be matched to ensure PCB layout compatibility and mechanical fit.
• Mounting Type: Through-hole mounting is mandatory for compatibility with existing PCB designs.
• Operating Temperature Range: The substitute must support the –65°C to 125°C range to function across all specified environmental conditions.

Parameter Comparison

Engineering Selection Recommendations

The AB14 is the direct substitute for the obsolete EB14. Both components are manufactured by Knowles Voltronics and share identical electrical and mechanical specifications with the following exception:

Capacitance Range Difference: The EB14 minimum capacitance is 0.8pF, while the AB14 minimum is 1pF. This 0.2pF difference is negligible for general-purpose trimmer applications and does not affect functional compatibility in standard circuit designs.

Product Status Advantage: The AB14 is classified as active, ensuring ongoing availability and supply chain continuity. The EB14 is obsolete and subject to inventory depletion.

Compliance Status: The AB14 carries RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements for electronic components.

The AB14 is suitable for direct replacement in all applications where the EB14 was originally specified.

Frequently Asked Questions (FAQ)

Q: Can the AB14 replace the EB14 in existing designs without modification?

A: Yes. The AB14 and EB14 are mechanically and electrically compatible. Both feature identical physical dimensions, voltage ratings, adjustment mechanisms, and operating temperature ranges. The 0.2pF difference in minimum capacitance (0.8pF vs. 1pF) does not affect general-purpose trimmer applications.

Q: Why is the EB14 listed as obsolete?

A: The EB14 has been discontinued by Knowles Voltronics. The AB14 represents the active equivalent in the manufacturer's current product line.

Q: Are there any compliance differences between the EB14 and AB14?

A: The AB14 is RoHS3 compliant and REACH unaffected. Compliance status for the EB14 was not provided in the available documentation. For applications requiring specific regulatory compliance, the AB14 is the recommended choice.

Q: What is the significance of the different series designations (E vs. A)?

A: The series designation indicates the product line within Knowles Voltronics' trimmer capacitor portfolio. Both E and A series components meet the same electrical and mechanical specifications for this application category.

Q: Can the AB14 be used in high-frequency applications?

A: Yes. The AB14 maintains a Q factor of 3000 @ 100MHz, identical to the EB14, making it suitable for RF and high-frequency circuit applications.