ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：MICROPHONE OMNI
- Series：TO
- Mfr：Knowles
- Package：Bulk
- Type：-
- Output Type：-
- Direction：Omnidirectional
- Frequency Range：-
- Sensitivity：-
- S/N Ratio：-
- Impedance：-
- Voltage Range：-
- Current - Supply：-
- Port Location：-
- Ratings：-
- Termination：-
- Size / Dimension：-
- Height (Max)：-
- Shape：-
- Grade：-
- Qualification：-
- Voltage - Rated：-
Download product information
Overview
The Knowles TO-31021-B21 is an omnidirectional microphone designed for audio signal capture. It features a compact form factor suitable for surface-mount or through-hole integration depending on the specific variant configuration. The component operates within standard commercial temperature ranges and complies with RoHS standards, ensuring environmental safety. Its construction utilizes durable materials to maintain acoustic performance over time. This device is engineered for reliable operation in various electronic assemblies requiring high-fidelity sound input.
Feature Summary
- Omnidirectional polar pattern for uniform sound pickup from all directions
- RoHS compliant construction for environmental safety
- Compact design optimized for space-constrained electronic applications
Applications
- Consumer electronics audio input modules
- Industrial communication devices
- Medical equipment acoustic sensors
Procurement Notes
Verify the exact package type and termination style against your PCB footprint requirements before ordering. Confirm that the specific revision matches your design's mechanical constraints. Ensure compatibility with your assembly process regarding thermal profiles. Cross-reference the manufacturer's latest documentation to confirm current production status and any potential obsolescence notices prior to finalizing procurement plans.
Selection Notes
Select this component when an omnidirectional response is required for general-purpose audio capture. Consider the operating temperature range and voltage specifications relative to your circuit design. Evaluate the physical dimensions to ensure they fit within the designated enclosure space. Compare alternative models if specific sensitivity or frequency response characteristics differ significantly from project requirements.
Part Context
This microphone belongs to Knowles' broad portfolio of acoustic transducers. The brand specializes in precision sensors and actuators for diverse industries. The TO-31021 series represents a line of microphones known for consistent performance. These components are widely used in applications demanding reliable audio detection capabilities.
Replacement Considerations
Consult official substitution guides for compatible alternatives. Verify pinout compatibility and electrical parameters before swapping. Ensure mechanical dimensions match existing board layouts. Check for equivalent acoustic performance metrics.
