Knowles EK-23032-A21 Equivalent & Substitute Parts

Part Overview

The Knowles EK-23032-A21 is an electret condenser microphone with analog output, designed for omnidirectional audio capture across the 100 Hz to 10 kHz frequency range. This component delivers -53dB ±2dB sensitivity at 74dB SPL with a compact rectangular form factor (5.56mm x 3.99mm x 2.26mm). The EK-23032-A21 is classified as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

EK-23032-A21

KnowlesIn Stock: 1080EK-23032-A21 Datasheet

Current PartRFQ

EK-26597-C36

KnowlesIn Stock: 814EK-26597-C36 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EK-23032-A21 is determined by strict alignment across the following critical parameters:

Mandatory Matching Criteria:

• Microphone type: Electret Condenser
• Output configuration: Analog
• Directional pattern: Omnidirectional
• Sensitivity specification: -53dB ±2dB @ 74dB SPL
• Impedance: 4.4 kOhms
• Current consumption: 50 µA
• Termination method: Solder Pads
• Physical dimensions: 0.219" L x 0.157" W (5.56mm x 3.99mm)
• Maximum height: 0.089" (2.26mm)
• Shape: Rectangular

Allowable Variation Parameters:

• Frequency range: Upper limit may be reduced (10 kHz to 5 kHz acceptable)
• Rated voltage: May differ if operating voltage range encompasses the original specification
• Product status: Active status preferred for ongoing availability
• Packaging format: May vary (Tray vs. alternative packaging)
• Compliance certifications: Additional certifications acceptable

The EK-26597-C36 meets all mandatory matching criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The EK-26597-C36 is the qualified substitute for the obsolete EK-23032-A21. Selection rationale is based on the following factors:

Product Status: The EK-26597-C36 maintains Active status, ensuring continued availability and manufacturing support. The EK-23032-A21 is classified as Obsolete, necessitating substitution for new designs and production replenishment.

Compliance Certifications: The EK-26597-C36 carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for electronic component procurement. These certifications support long-term supply chain viability.

Electrical and Mechanical Compatibility: All critical performance parameters align between the two components. The frequency range reduction from 10 kHz to 5 kHz in the substitute represents the only functional difference. The EK-26597-C36 provides an extended operating voltage range (0.9 V ~ 10 V) compared to the rated 1.3 V specification of the original part, offering greater design flexibility.

Physical Form Factor: Identical dimensions and solder pad termination ensure direct mechanical and electrical integration without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can the EK-26597-C36 be used as a direct replacement for the EK-23032-A21 without circuit modification?

A: Yes. The EK-26597-C36 matches all mandatory electrical and mechanical parameters. No circuit modification is required for substitution. The extended voltage range of the substitute (0.9 V ~ 10 V) is backward-compatible with the original 1.3 V rated specification.

Q: What is the significance of the frequency range difference between the two parts?

A: The EK-23032-A21 specifies 100 Hz ~ 10 kHz, while the EK-26597-C36 specifies 100 Hz ~ 5 kHz. This represents a reduction in upper frequency response. Applications requiring audio capture above 5 kHz must evaluate whether this limitation affects system performance.

Q: Are there packaging differences between these components?

A: The EK-23032-A21 packaging format is not specified in available documentation. The EK-26597-C36 is supplied in Tray packaging. Confirm packaging compatibility with your procurement and assembly processes.

Q: Does the EK-26597-C36 meet current regulatory standards?

A: Yes. The EK-26597-C36 is ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component procurement in most jurisdictions.

Q: What is the inventory status for these components?

A: The EK-23032-A21 has 975 Pcs available as New Original In Stock. The EK-26597-C36 has 788 Pcs available as New Original In Stock. Both components are currently available for procurement.