HC-23764-000 Equivalent & Substitute Parts

Part Overview

The HC-23764-000 is a 43 Ohms Receiver, Balanced Armature Speaker manufactured by Knowles, designed for audio applications requiring top-port rectangular configuration with 101 dB Sound Pressure Level output across a 100 Hz to 5.5 kHz frequency range. This part is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

HC-23764-000

KnowlesIn Stock: 1145HC-23764-000 Datasheet

Current PartRFQ

RAB-32063-000

KnowlesIn Stock: 1240RAB-32063-000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The RAB-32063-000 qualifies as a functional substitute for the HC-23764-000 based on the following critical parameters:

• Type & Technology: Both are Receiver, Balanced Armature speakers using Magnetic technology
• Port Configuration: Both feature top-port rectangular design
• Termination: Both use Solder Pads for circuit integration
• Physical Compatibility: Both maintain 0.203" (5.15mm) seated height, enabling direct mechanical replacement in constrained mounting environments
• Impedance Range: 43 Ohms (HC-23764-000) to 46.3 Ohms (RAB-32063-000) represents acceptable impedance variation within standard audio circuit design tolerances
• Efficiency Enhancement: RAB-32063-000 provides 104.6 dB SPL versus 101 dB SPL, delivering improved acoustic output
• Expanded Frequency Response: RAB-32063-000 covers 80 Hz ~ 10.8 kHz versus 100 Hz ~ 5.5 kHz, providing broader frequency coverage
• Product Status: RAB-32063-000 is Active, ensuring ongoing availability and supply chain continuity

Parameter Comparison

Engineering Selection Recommendations

The RAB-32063-000 is the designated manufacturer-recommended substitute for HC-23764-000 applications. Selection criteria are based on:

• Product Status Alignment: RAB-32063-000 is Active, providing long-term supply assurance compared to the Obsolete HC-23764-000
• Regulatory Compliance: RAB-32063-000 carries ROHS3 Compliant and REACH Unaffected certifications, meeting current environmental and regulatory requirements
• Mechanical Compatibility: Identical seated height (0.203" / 5.15mm) and top-port rectangular configuration enable direct mechanical substitution without enclosure redesign
• Electrical Compatibility: Impedance variation of 3.3 Ohms (43 Ohms to 46.3 Ohms) is within standard audio circuit design margins and does not require circuit modification
• Performance Enhancement: Improved efficiency (104.6 dB versus 101 dB) and expanded frequency response (80 Hz ~ 10.8 kHz versus 100 Hz ~ 5.5 kHz) provide acoustic performance benefits

Frequently Asked Questions (FAQ)

Q: Can RAB-32063-000 be used as a direct replacement for HC-23764-000?

A: Yes. Both components share identical port location (Top), shape (Rectangular), termination method (Solder Pads), and seated height (0.203" / 5.15mm). No mechanical or circuit board modifications are required.

Q: What is the impedance difference between these parts?

A: HC-23764-000 is 43 Ohms; RAB-32063-000 is 46.3 Ohms. This 3.3 Ohm variation is within standard audio circuit design tolerances and does not necessitate circuit redesign.

Q: Does the frequency range difference affect compatibility?

A: RAB-32063-000 provides expanded frequency coverage (80 Hz ~ 10.8 kHz) compared to HC-23764-000 (100 Hz ~ 5.5 kHz). This represents a performance enhancement, not a compatibility limitation.

Q: What is the efficiency difference?

A: RAB-32063-000 delivers 104.6 dB SPL versus HC-23764-000's 101 dB SPL, representing a 2.5 dB improvement in acoustic output.

Q: Are there packaging differences?

A: HC-23764-000 packaging is not specified; RAB-32063-000 is supplied in Tray packaging. Both use Solder Pads termination.

Q: What compliance certifications does RAB-32063-000 carry?

A: RAB-32063-000 is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards.

Q: Why is HC-23764-000 classified as Obsolete?

A: Obsolete status indicates the part is no longer in active production. RAB-32063-000 is the active equivalent, ensuring ongoing availability and supply chain continuity.