TOM-1242L-NF-R

Overview

The PUI Audio TOM-1242L-NF-R is an analog electret condenser microphone featuring an omnidirectional polar pattern. It operates within a frequency range of 20 Hz to 20 kHz and requires a supply voltage between 2 V and 10 V. The device exhibits a sensitivity of -42 dB ±3 dB, with a signal-to-noise ratio of 60 dB and an impedance of 2.2 kOhms. Physical dimensions include a 4.00 mm diameter (0.157 inches), utilizing solder pads for termination.

Feature Summary

• Omnidirectional acoustic pickup pattern for uniform sound capture
• Electret condenser transducer technology for analog audio applications
• Ultra-small 4 mm diameter form factor suitable for compact designs

Applications

• Analog audio recording devices
• Voice recognition systems
• Consumer electronic audio input modules

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required voltage ranges and termination styles. Confirm RoHS compliance status as manufacturer documentation may vary by production batch or regional variant. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a low-profile, omnidirectional electret microphone is required for general-purpose analog audio capture. Ensure the application circuit supports the specified 2 V to 10 V operating voltage and 2.2 kOhm impedance load. Consider the physical size constraints and solder pad termination method during PCB layout design.

Part Context

This model belongs to the TOM series from PUI Audio, Inc., which specializes in ultra-small microphones. The series typically features 4 mm diameter packages designed for integration into space-constrained consumer electronics and portable audio devices requiring reliable analog signal conversion.

Replacement Considerations

The TOM-1242L-NF-C3310-R is a documented variant within the same product family. Verify electrical parameter equivalence before substitution.