TOW-1538P-C3310-R

Overview

The TOW-1538P-C3310-R is an omnidirectional electret condenser microphone manufactured by PUI Audio, Inc. It features a sensitivity of -38 dB and operates on a 2 VDC supply voltage with a maximum current rating of 500 uA. The device has an impedance of 2.2 kOhms and utilizes solder pin termination. Its physical dimensions include a 4 mm diameter and a depth of 2.5 mm. The component is rated for IP67 environmental protection.

Feature Summary

• Omnidirectional acoustic pickup pattern
• IP67 environmental sealing rating
• Low power consumption operation

Applications

• Consumer electronics audio input
• Industrial control panels
• Medical devices requiring moisture resistance

Procurement Notes

Verify the specific suffix C3310 against official datasheets to confirm lead times and availability status. Confirm that the 2VDC operating requirement matches your system design before procurement. Ensure soldering processes comply with the specified thermal limits for this component type.

Selection Notes

Select this model when low voltage operation at 2VDC is required alongside high environmental sealing. The 4mm diameter suits compact enclosures where space is limited. Verify that the 2.2 kOhm impedance aligns with the preamplifier input requirements of the target application circuit.

Part Context

This microphone belongs to the TOW series from PUI Audio, designed for general-purpose audio sensing. It shares common form factors with other 4mm microphones but distinguishes itself through its specific 2VDC biasing and IP67 rating. It serves as a compact solution for portable or harsh-environment audio detection tasks.

Replacement Considerations

Check for direct substitutes within the TOW series that maintain the 2VDC and IP67 specifications. Verify pinout compatibility if replacing with similar 4mm omnidirectional microphones from other manufacturers.