TO-24603-B63

Overview

The Knowles TO-24603-B63 is a subminiature analog electret condenser microphone designed for high-performance audio applications. It features an omnidirectional polar pattern and operates within a frequency range of 100 Hz to 9.5 kHz. The device has a sensitivity of -56.5 dB, an impedance of 4.4 kOhms, and requires a supply voltage of 1.3 V. Its physical dimensions are 3.57 mm x 3.57 mm with a maximum height of 1.35 mm, utilizing solder pad termination.

Feature Summary

• Subminiature form factor suitable for space-constrained designs
• Omnidirectional acoustic response for uniform sound capture
• Analog output signal generation via integrated electret element

Applications

• Mobile communication devices requiring compact audio input
• Wearable electronics with strict size limitations
• Consumer audio peripherals needing premium sound quality

Procurement Notes

Verify the specific revision level and termination compatibility before integration. Confirm that the 1.3 V operating voltage aligns with the target system power rails. Ensure soldering processes accommodate the small footprint and lead-free requirements specified in the official datasheet to maintain reliability.

Selection Notes

Select this component when a balance of ultra-small size and high-fidelity analog audio capture is required. It is appropriate for systems where omnidirectional pickup is preferred over directional patterns. Consider the 4.4 kOhm impedance when designing the pre-amplifier interface circuitry to ensure optimal signal transfer.

Part Context

This microphone belongs to Knowles' subminiature performance microphone series, engineered for modern portable electronics. It represents a shift toward smaller acoustic components without compromising audio fidelity. The TO series designation indicates its specific package style and mounting configuration within the manufacturer's portfolio.

Replacement Considerations

Consult official substitution guides for compatible equivalents. Verify pinout compatibility and electrical parameter alignment, specifically sensitivity and impedance, before replacing existing units in production designs.