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| PartNumber | TO38-30886-B21 | TO38-30702-B20 | TO38-30885-B21 |
| Description | Microphones omni-directional MICROPHONE 1pc=2pcs | Microphones omni-directional MICROPHONE | Microphones omni-directional MICROPHONE |
| Manufacturer | Knowles | Knowles | Knowles |
| Product Category | Microphones | Microphones | Microphones |
| RoHS | Y | Y | - |
| Directional Properties | Omnidirectional | - | - |
| Impedance | 8 kOhms | - | - |
| Current Rating | 29 uA | - | - |
| Sensitivity | - 54 dBA | - | - |
| Termination Style | Solder Pad | - | - |
| IP Rating | - | - | - |
| Length | 3.54 mm | - | - |
| Width | 3.54 mm | - | - |
| Depth | 1.3 mm | - | - |
| Operating Supply Voltage | 1.6 V | - | - |
| Series | TO/BTO | TO/BTO | TO/BTO |
| Brand | Knowles | Knowles | - |
| Length in | 0.139 in | - | - |
| Length mm | 3.54 mm | - | - |
| Product Type | Microphones | Microphones | - |
| Factory Pack Quantity | 25 | 25 | - |
| Subcategory | Audio Devices | Audio Devices | - |
| Width in | 0.139 in | - | - |
| Width mm | 3.54 mm | - | - |
| Type | - | - | - |
| Packaging | - | - | - |
| Termination | - | - | - |
| Voltage Rated | - | - | - |
| Current Supply | - | - | - |
| Port Location | - | - | - |
| Size Dimension | - | - | - |
| Output Type | - | - | - |
| Direction | - | - | - |
| Frequency Range | - | - | - |
| S N Ratio | - | - | - |
| Seal Rating | - | - | - |
| Height Max | - | - | - |
| Shape | - | - | - |
| Part # Aliases | - | - | 721-TO3830886B21 |