PUM-5250L-C3310-R

Microphones Overview

The PUM-5250L-C3310-R is a unidirectional electret condenser microphone (ECM) manufactured by PUI Audio. It features a cardioid polar pattern designed for focused acoustic pickup from one direction. The device operates within a frequency range of 20 Hz to 20 kHz and requires a supply voltage between 1 VDC and 10 VDC. Key electrical specifications include an output impedance of 680 ohms, a sensitivity of -50 dB, and a maximum current consumption of 500 µA. It utilizes a two-pin configuration for connection.

Microphones Feature Summary

• Unidirectional cardioid polar pattern for directional sound capture
• Electret condenser technology for consistent audio performance
• Wide frequency response suitable for voice and general audio applications

Microphones Applications

• Voice recognition systems requiring directional input
• Consumer electronics with integrated microphone needs
• Industrial control panels for voice commands

Microphones Procurement Notes

Verify the specific ordering suffix and pin configuration against the official PUI Audio datasheet before integration. Ensure that the power supply circuit provides stable voltage within the 1 VDC to 10 VDC range and limits current to 500 µA. Confirm mechanical mounting dimensions and polarity markings on the PCB footprint match the component's physical layout to prevent installation errors.

Microphones Selection Notes

Select this component when a compact, low-power microphone with directional sensitivity is required. The cardioid pattern helps reject noise from the rear and sides, making it suitable for environments with ambient interference. Consider the 680-ohm output impedance when designing the pre-amplifier stage to ensure optimal signal transfer and minimal noise degradation.

Microphones Part Context

PUI Audio specializes in innovative audio components, including transducers, speakers, and microphones. The company has over 40 years of experience serving medical, industrial, security, and consumer markets. This ECM belongs to their standard product line, designed for reliable performance in various electronic devices requiring clear audio input.

Microphones Replacement Considerations

Consult PUI Audio technical support or authorized distributors for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' ECMs without verifying pinout, sensitivity, and polar pattern specifications.