EM15HV Trimmer Capacitor: Equivalent & Substitute Parts

Part Overview

The EM15HV is a 1–16pF trimmer capacitor rated for 1000V operation, designed for surface mount applications with top adjustment. Manufactured by Knowles Voltronics, this component features a PTFE dielectric and operates across the temperature range of –65°C to 125°C. The EM15HV is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

EM15HV

Knowles VoltronicsIn Stock: 808EM15HV Datasheet

Current PartRFQ

AM15HV

Knowles VoltronicsIn Stock: 3929AM15HV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EM15HV is determined by strict equivalence across the following critical parameters:

• Capacitance Range: 1–16pF (exact match required)
• Voltage Rating: 1000V (exact match required)
• Dielectric Material: PTFE (exact match required)
• Adjustment Type: Top (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 0.300" Dia (7.62mm) and 0.480" (12.19mm) height (exact match required)
• Operating Temperature Range: –65°C to 125°C (exact match required)
• Q Factor: 2000 @ 100MHz (exact match required)

The AM15HV meets all substitution criteria, differing only in product status (active versus obsolete) and series designation (A_HV versus E_HV). Both components are manufactured by Knowles Voltronics and share identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The AM15HV is the direct substitute for the EM15HV. Both components are manufactured by Knowles Voltronics and maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the EM15HV is obsolete, while the AM15HV is active and currently in production.

For new designs or ongoing procurement, the AM15HV is the appropriate selection. For legacy systems currently using the EM15HV, the AM15HV provides full functional equivalence without design modification or re-qualification requirements.

Frequently Asked Questions (FAQ)

Q: Can the AM15HV be used as a direct replacement for the EM15HV in existing designs?

A: Yes. The AM15HV is electrically and mechanically identical to the EM15HV. No circuit modifications or PCB layout changes are required. The components are pin-compatible and functionally equivalent.

Q: What is the difference between the EM15HV and AM15HV?

A: The EM15HV and AM15HV differ only in product status and series designation. The EM15HV (E_HV series) is obsolete, while the AM15HV (A_HV series) is active. All electrical and mechanical parameters are identical.

Q: Are there any compliance or certification differences between these parts?

A: The AM15HV is listed as RoHS non-compliant and REACH Unaffected. Compliance requirements should be evaluated against your application and regulatory obligations.

Q: What is the physical footprint compatibility?

A: Both the EM15HV and AM15HV share identical dimensions: 0.300" diameter (7.62mm) and 0.480" maximum seated height (12.19mm). They are fully compatible with the same PCB footprint and assembly process.

Q: Can these components be used interchangeably in high-frequency applications?

A: Yes. Both components maintain a Q factor of 2000 @ 100MHz, ensuring equivalent performance in high-frequency trimmer capacitor applications.