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MSM381A2718Z9EM2E
MSM381A2718Z9EM2E
| Part Number | MSM381A2718Z9EM2E |
|---|---|
| Manufacturer | MEMSensing |
| Category | Sensors, Transducers > Microphones – MEMS (Silicon Microphone) |
| Description | High-performance, top-port analog MEMS microphone with omnidirectional pickup, 62dB SNR and -38dB sensitivity. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The MSM381A2718Z9EM2E is an advanced, high-performance acoustic sensor manufactured by MEMSensing. Built as a specialized top-port analog MEMS (Micro-Electro-Mechanical Systems) silicon microphone, this component integrates a highly reliable acoustic sensor element and a low-noise, high-fidelity input buffer amplifier onto a singular, miniature substrate. It is engineered to capture crystal-clear audio data with omnidirectional pickup pattern, offering a 62dB signal-to-noise ratio (SNR) and -38dB sensitivity. Its specialized design ensures outstanding RF immunity against cellular and wireless interference bands. Housed in a compact SMD-3P 2.8×1.9mm surface-mount package, the serves as the ideal acoustic solution for modern space-constrained hardware systems requiring precision voice capturing, acoustic measurements, or environmental voice-control tracking.
Core Advantages
Superior Acoustic Clarity & High SNR
Delivers clean, rich audio capture with low self-noise and 62dB signal-to-noise performance, enabling superior keyword voice recognition and distant far-field sound parsing accuracy.
Omnidirectional Pickup Pattern
Offers consistent sound capture from all directions, making it ideal for applications where sound sources can come from multiple angles without requiring precise placement.
Robust RF Noise Immunity
Equipped with integrated shielding and optimized matching topologies that isolate the acoustic core from electromagnetic interference (EMI/RFI), ensuring static-free performance near cellular antennas or Wi-Fi routers.
Miniaturized SMD Package
Features a compact 2.8×1.9mm SMD-3P surface-mount package format engineered for high-density modern mobile applications and high-throughput automated pick-and-place surface mount assembly (SMT) lines.
Key Specifications
| Brand | MEMSensing |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free Standard / Halogen-Free |
| EDA/CAD Model | 3D Model & PCB Footprint Available upon request |
| Warranty | 1-Year Standard Factory Warranty |
| Package / Case | SMD-3P (2.8×1.9mm) |
| Mounting Type | Surface Mount (SMD/SMT) |
| Surface Marking / Silkscreen | MSM381A2718Z9EM2E |
| Microphone Type | MEMS (Silicon Microphone Array Structure) |
| Acoustic Port Location | Top Port Directional Entry Point |
| Output Type Interface | Analog Single-Ended Output Signal |
| Sensitivity Level | -38dBV/Pa ±1dB |
| Signal-to-Noise Ratio (SNR) | 62dB (Typical) |
| Operating Current | 150µA ~ 170µA (Typical) |
| Operating Core Voltage Supply | 1.5V to 3.6V DC Low Power Input Range |
| Operating Temperature Range | -40°C to +85°C (Industrial / Consumer Wearable Grade Specification) |
Typical Applications
- Smart Wearables, True Wireless Stereo (TWS) Earbuds, and Bluetooth Headsets
- Voice-Activated Smart Home Devices, Intelligent Speakers, and IoT Nodes
- Mobile Smart Devices, Tablets, and Compact Handheld Communication Hardware
- Active Noise Cancellation (ANC) Arrays and Environmental Sound Sampling
- Industrial Predictive Maintenance Systems requiring High-Precision Acoustic Monitored Nodes
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Is your current stock inventory of the MSM381A2718Z9EM2E original and genuine?
A: Yes, we guarantee that all MSM381A2718Z9EM2E MEMS microphones are 100% brand-new, authentic factory products from MEMSensing, securely stored in original anti-static moisture-sealed tape-and-reel packaging.
Q2: What is the primary difference between a top-port and a bottom-port MEMS microphone package?
A: A top-port MEMS microphone like the MSM381A2718Z9EM2E features its acoustic sound entry hole on the top metallic cover lid. This makes it highly optimized for systems where the device casing opening sits directly over the component face, simplifying board acoustics without drilling via paths through the PCB layer.
Q3: What precautions should be taken when wave soldering or cleaning this MEMS silicon microphone?
A: To avoid damaging the internal delicate micro-machined diaphragm, the acoustic entry hole must never be exposed to vacuum forces, high-pressure air streams, or liquid cleaning solvents during post-reflow board washing procedures.
Q4: How can our development team obtain the full electrical evaluation files or phase matching data sheets?
A: Please complete the Quick Inquiry form provided on our page. Our application support desk will process your parameters and reply with the complete technical reference documents within 24 hours.
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