WP-23502-P07

Overview

The Knowles WP-23502-P07 is an analog omnidirectional electret condenser microphone designed for robust audio capture. It operates within a frequency range of 100 Hz to 4 kHz and requires a supply voltage between 1.3 V and 10 V. The device features a sensitivity of -52 dB ±3 dB at 74 dB SPL and draws a supply current of 50 µA. Constructed with waterproof capabilities, it utilizes a pad termination style for surface mounting. The physical dimensions are 5.56 mm in length, 3.99 mm in width, and 2.26 mm in height, housed in a rectangular package suitable for compact electronic assemblies.

Feature Summary

• Waterproof construction ensures reliable operation in humid or wet environments
• Omnidirectional polar pattern captures sound uniformly from all directions
• Analog output interface provides direct signal transmission without digital conversion

Applications

• Consumer electronics requiring durable audio input
• Industrial equipment needing moisture-resistant microphones
• Medical devices demanding reliable acoustic sensing

Procurement Notes

Verify the specific suffix P07 against official Knowles documentation to confirm exact mechanical tolerances and terminal configuration. Ensure compatibility with existing PCB pad layouts, as the pad termination style differs from standard leaded packages. Confirm that the operating voltage range aligns with the target system power supply before integration.

Selection Notes

Select this component when a waterproof, omnidirectional microphone is required for space-constrained designs. The pad termination facilitates automated surface-mount assembly. Consider the 100 Hz to 4 kHz frequency response limitations for applications requiring high-fidelity wideband audio capture outside this specific range.

Part Context

This model belongs to the Knowles WP series, which specializes in waterproof microphones. The series is engineered for harsh environments where standard microphones might fail due to moisture ingress. The WP-23502 variant specifically addresses needs for compact, reliable audio input in ruggedized consumer and industrial applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-compatibility with other WP series models only through official Knowles engineering data sheets.