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Product Detailed Parameters
- Description：ANALOG MIC/BOTTOM PORT/SEN -38DB
- Series：3S MEMS
- Mfr：3S (Solid State System)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MEMS (Silicon)
- Output Type：Analog
- Direction：Omnidirectional
- Frequency Range：100 Hz ~ 10 kHz
- Sensitivity：-38dB ±1dB @ 94dB SPL
- S/N Ratio：62dB
- Impedance：200 Ohms
- Voltage Range：-
- Current - Supply：80 µA
- Port Location：Bottom
- Ratings：-
- Termination：Surface Mount
- Size / Dimension：0.108" L x 0.073" W (2.75mm x 1.85mm)
- Height (Max)：0.039" (1.00mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：-
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Overview
The 3SM122HZB1VD-R is an omnidirectional MEMS microphone IC manufactured by Solid State System Co., Ltd. It operates within a frequency range of 100 Hz to 10 kHz and provides analog output. The device features a sensitivity of -38 dB ±1 dB at 94 dB SPL. It is designed for surface mount technology (SMT) processes, enduring reflow temperatures up to 260°C for 30 seconds.
Feature Summary
- Omnidirectional acoustic design for uniform sound capture
- Analog output interface for direct signal processing
- High thermal stability suitable for standard SMT reflow profiles
Applications
- Consumer electronics audio input systems
- Industrial voice recognition modules
- Portable communication devices
Procurement Notes
Verify the specific suffix and tape-and-reel configuration against the manufacturer's latest documentation before ordering. Confirm that the analog output requirements match the receiving circuitry impedance and voltage levels. Ensure storage conditions comply with moisture sensitivity level ratings to prevent package damage during assembly.
Selection Notes
Select this component when an omnidirectional response is required for general-purpose audio pickup. The analog output format necessitates compatible amplification or ADC stages in the system design. Consider the 100 Hz lower frequency limit when evaluating suitability for low-frequency acoustic environments compared to broader-range alternatives.
Part Context
This part belongs to the 3SM122 series of MEMS microphones from Solid State System Co., Ltd. The series utilizes silicon-based MEMS technology to provide reliable acoustic sensing. These components are engineered for high-volume manufacturing integration into compact electronic assemblies requiring consistent audio performance.
Replacement Considerations
Cross-reference with other 3SM122 series variants such as 3SM122KZB1VD-002-R for potential functional equivalents. Verify pinout compatibility and sensitivity specifications before substituting to ensure system performance remains unchanged.
