WP-23502-P16

Overview

The Knowles WP-23502-P16 is a subminiature electret condenser microphone designed for omnidirectional sound pickup. It features wire lead termination and operates within a supply voltage range of 1.3 V to 10 V, with a rated voltage of 1.3 V. The device has an impedance of 4.4 kOhms and a current rating of 50 uA. Sensitivity is specified at -52 dB ±3 dB relative to 0 dB = 1 V/Pa at 74 dB SPL. The frequency response spans from 100 Hz to 4 kHz. Physical dimensions are 5.56 mm in length, 3.99 mm in width, and a maximum height of 2.26 mm.

Feature Summary

• Omnidirectional acoustic design for uniform sound capture
• Subminiature rectangular form factor suitable for space-constrained applications
• Wire lead termination style for direct circuit integration

Applications

• Automotive audio systems
• Space-constrained consumer electronics
• Rugged environment audio capture devices

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct sensitivity and tolerance specifications. Confirm that the wire lead termination matches the target assembly requirements. Check for any environmental ratings such as waterproofing if the application involves exposure to moisture or harsh conditions. Ensure the operating voltage range aligns with the system power supply constraints.

Selection Notes

Select this component when a compact, omnidirectional electret microphone is required for automotive or general audio applications. Consider the 100 Hz to 4 kHz frequency response suitability for voice-centric use cases. Evaluate the 50 uA current consumption against battery-powered system limitations. Ensure the physical dimensions fit within the designated enclosure space while accounting for mounting clearances.

Part Context

This part belongs to the Knowles WP-23502 series of subminiature electret microphones. The series is characterized by compact sizes designed for high-performance audio capture in rugged environments. Variants within the series may differ in sensitivity, tolerance, or termination style, but share the fundamental electret condenser technology and small footprint.

Replacement Considerations

Direct substitutes must match the 4.4 kOhm impedance, 50 uA current rating, and similar dimensional constraints. Verify that alternative parts support the 1.3 V to 10 V operating range and provide comparable omnidirectional polar patterns. Cross-reference sensitivity levels to ensure signal integrity compatibility.