TOW-1530P-R

Overview

The TOW-1530P-R is an omnidirectional analog electret condenser microphone manufactured by PUI Audio, Inc. It operates within a voltage range of 2 VDC to 10 VDC and draws a maximum current of 500 µA. The device features a sensitivity of -30 dB and an impedance of 2.2 kOhms. Its frequency response spans from 50 Hz to 16 kHz. The physical dimensions include a diameter of 0.157 inches (approximately 4 mm) and a maximum height of 0.067 inches (1.70 mm). It utilizes PC pins for termination and is RoHS compliant.

Feature Summary

• Omnidirectional acoustic pickup pattern for uniform sound capture
• Analog output signal suitable for standard audio processing circuits
• Low power consumption with wide operating voltage tolerance
• Compact cylindrical form factor designed for space-constrained PCB integration

Applications

• Consumer electronics audio input modules
• Industrial control panel voice commands
• Medical equipment acoustic sensing
• Security system voice activation

Procurement Notes

Verify the specific datasheet revision to confirm pinout orientation and sensitivity tolerances (-30dB ±3dB). Ensure the host circuit provides the required 2V to 10V DC bias voltage. Confirm that the 2.2 kOhm impedance matches the input requirements of the connected amplifier or ADC stage. Check for any updated environmental compliance certifications beyond standard RoHS status.

Selection Notes

Select this component when an omnidirectional response is required for ambient noise capture rather than directional focusing. The low profile and small diameter make it suitable for tight enclosures where larger microphones cannot fit. Consider the -30dB sensitivity level against the background noise floor of the target application to ensure adequate signal-to-noise ratio without excessive amplification.

Part Context

This part belongs to PUI Audio's line of analog electret condenser microphones. These components are engineered for general-purpose audio detection in commercial and industrial devices. The series emphasizes reliability and consistent performance across varying environmental conditions, supporting applications that require stable voice or sound input signals.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Replacement requires matching the electrical parameters (voltage, impedance, sensitivity) and mechanical footprint (diameter, height, pin configuration). Verify compatibility with existing PCB layouts and biasing circuits before substituting.