PMM-3738-WP-2-R

$1.43

Description：MIC PIEZO MEMS ANLG OMNI -38DB
Series：PMM
Mfr：PUI Audio, Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:e9c4f9960d70 Category: Microphones Brand: PUI Audio, Inc.

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Product introduction

PMM-3738-WP-2-R is listed in the Microphones range at ChipApex. The manufacturer field lists PUI Audio, Inc.. Its product description is MIC PIEZO MEMS ANLG OMNI -38DB. Review the specifications below when checking this part for your BOM.

Microphones specifications for PMM-3738-WP-2-R

Description：MIC PIEZO MEMS ANLG OMNI -38DB
Series：PMM
Mfr：PUI Audio, Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Piezo MEMS
Output Type：Analog
Direction：Omnidirectional
Frequency Range：250 Hz ~ 10 kHz
Sensitivity：-38dB ±3dB @ 94dB SPL
S/N Ratio：60dB
Impedance：400 Ohms
Voltage Range：1.6 V ~ 3.6 V
Current - Supply：150 µA
Port Location：Bottom
Ratings：IP68 - Dust Tight, Waterproof
Termination：Solder Pads
Size / Dimension：0.148" L x 0.116" W (3.76mm x 2.95mm)
Height (Max)：0.043" (1.10mm)
Shape：Rectangular
Grade：-
Qualification：-
Voltage - Rated：2.1 V

Microphones datasheet and documents for PMM-3738-WP-2-R

PMM-3738-WP-2-R

Microphones Overview

The PMM-3738-WP-2-R is a piezoelectric MEMS microphone manufactured by PUI Audio, Inc. It features an analog output and omnidirectional sound pickup. Key electrical parameters include a sensitivity of -38dB ±3dB at 94dB SPL, a signal-to-noise ratio of 60dB, and an impedance of 400 ohms. The frequency response ranges from 250 Hz to 10 kHz. It operates within a voltage range of 1.6 V to 3.6 V with a rated voltage of 2.1 V and a supply current of 150 µA. The device has a rectangular shape with dimensions of 3.76 mm x 2.95 mm x 1.10 mm and offers IP68 protection against dust and water.

Microphones Feature Summary

Piezoelectric MEMS technology for analog audio capture
IP68 rated environmental sealing for dust and water resistance
Omnidirectional acoustic porting for uniform sound reception

Microphones Applications

Consumer electronics requiring robust environmental sealing
Wearable devices with limited internal space
Industrial equipment exposed to harsh conditions

Microphones Procurement Notes

Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm final specifications against the official datasheet prior to integration, noting potential variations in legacy documentation. Ensure compatibility with existing PCB layouts due to the specific package dimensions and solder pad configuration.

Microphones Selection Notes

Select this component when high environmental durability is required alongside compact form factors. The piezoelectric MEMS design provides distinct performance characteristics compared to standard capacitive MEMS microphones. Evaluate the 400-ohm impedance and analog output requirements against the target application's pre-amplifier input stages to ensure proper signal matching.

Microphones Part Context

This model belongs to the PMM series of piezoelectric MEMS microphones from PUI Audio, Inc. The series is characterized by its ability to withstand extreme environmental conditions while maintaining small physical profiles. The WP suffix typically denotes water-resistant or waterproof variants within the product line.