INMP504ACEZ-R0 Equivalent & Substitute Parts

Part Overview

The INMP504ACEZ-R0 is a MEMS analog omnidirectional microphone manufactured by TDK InvenSense, designed for audio capture applications requiring low-power operation and compact form factor. This component operates across a frequency range of 100 Hz to 20 kHz with a sensitivity of -38dB ±3dB at 94dB SPL. The product is classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

INMP504ACEZ-R0

TDK InvenSenseIn Stock: 969INMP504ACEZ-R0 Datasheet

Current PartRFQ

INMP510ACEZ-R7

TDK InvenSenseIn Stock: 94597INMP510ACEZ-R7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the INMP504ACEZ-R0 is determined by the following critical parameters:

• Microphone Type: MEMS (Silicon) construction
• Output Configuration: Analog output
• Directional Pattern: Omnidirectional response
• Sensitivity Level: -38dB nominal at 94dB SPL
• Frequency Response: Coverage of audio spectrum (minimum 100 Hz to 20 kHz)
• Termination Method: Solder Pads
• Physical Footprint: 3.35mm x 2.50mm base dimensions
• Supply Voltage Compatibility: Overlap within 1.6 V to 3.3 V range
• Compliance: ROHS3 Compliant

The INMP510ACEZ-R7 meets these substitution criteria through equivalent MEMS analog omnidirectional architecture with matching sensitivity specification, identical footprint dimensions, compatible termination, and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The INMP510ACEZ-R7 is the manufacturer-recommended substitute for the obsolete INMP504ACEZ-R0. Both components maintain ROHS3 compliance and identical footprint geometry, enabling direct mechanical and electrical substitution in existing PCB layouts.

Key considerations for selection:

• Sensitivity Tolerance: The INMP510ACEZ-R7 provides tighter sensitivity tolerance (±2dB versus ±3dB), resulting in improved consistency across production batches.
• Frequency Response Extension: The INMP510ACEZ-R7 extends lower frequency response to 60 Hz, providing enhanced bass capture capability.
• Impedance Variation: The INMP510ACEZ-R7 operates at 350 Ohms versus 200 Ohms. Circuit impedance matching and signal conditioning must be evaluated for the specific application.
• Supply Current: The INMP510ACEZ-R7 requires 250 µA versus 225 µA, representing a 25 µA increase in power consumption.
• Voltage Range Expansion: The INMP510ACEZ-R7 supports extended supply voltage range (1.5 V to 3.63 V), providing greater design flexibility.
• Physical Height: The INMP510ACEZ-R7 maximum height is 1.10mm versus 0.98mm for the INMP504ACEZ-R0. PCB clearance must be verified for space-constrained applications.
• Product Status: The INMP510ACEZ-R7 is classified as "Not For New Designs," indicating limited long-term availability. Designs should evaluate next-generation alternatives for new product development.

Frequently Asked Questions (FAQ)

Q: Can the INMP510ACEZ-R7 be used as a direct replacement for the INMP504ACEZ-R0?

A: Yes, the INMP510ACEZ-R7 is the manufacturer-recommended substitute. Both components share identical footprint dimensions (3.35mm x 2.50mm), solder pad termination, and analog omnidirectional architecture. Circuit design must account for impedance differences (350 Ohms versus 200 Ohms) and the 1.10mm maximum height versus 0.98mm.

Q: What are the key electrical differences between these parts?

A: The INMP510ACEZ-R7 features tighter sensitivity tolerance (±2dB versus ±3dB), extended lower frequency response (60 Hz versus 100 Hz), higher impedance (350 Ohms versus 200 Ohms), slightly increased supply current (250 µA versus 225 µA), and expanded voltage range (1.5 V to 3.63 V versus 1.6 V to 3.3 V).

Q: Are there packaging differences between these components?

A: The INMP504ACEZ-R0 is supplied in standard packaging, while the INMP510ACEZ-R7 is available in Cut Tape (CT) and Digi-Reel® packaging options. Both use identical solder pad termination.

Q: What is the impact of impedance difference on circuit design?

A: The INMP510ACEZ-R7 operates at 350 Ohms compared to 200 Ohms for the INMP504ACEZ-R0. Signal conditioning circuits, input impedance matching, and amplifier input stages must be evaluated to ensure proper impedance coupling and signal integrity.

Q: Should new designs use the INMP510ACEZ-R7?

A: The INMP510ACEZ-R7 is classified as "Not For New Designs." While it serves as a substitute for obsolete INMP504ACEZ-R0 inventory, new product development should evaluate current-generation MEMS microphone alternatives from TDK InvenSense for extended product lifecycle support.