 | | | |
| PartNumber | BT-21752-000 | BT-21751-000 | BT-21754-000 |
| Description | Microphones | Microphones | Microphones |
| Manufacturer | Knowles | Knowles | Knowles |
| Product Category | Microphones | Microphones | Microphones |
| Series | BT | BT | BT |
| Type | Electret Condenser | Electret Condenser | Electret Condenser |
| Packaging | Bulk | Bulk | Bulk |
| Current Rating | 40 uA | 40 uA | 40 uA |
| Termination Style | Solder Pad | Solder Pad | Solder Pad |
| Length | 7.87 mm | 7.87 mm | 7.87 mm |
| Width | 5.54 mm | 5.54 mm | 5.54 mm |
| Impedance | 3.5 kOhm | 3.5 kOhm | 3.5 kOhm |
| Termination | Solder Pads | Solder Pads | Solder Pads |
| Voltage Rated | 1.3V | 1.3V | 1.3V |
| Current Supply | 40μA | 40μA | 40μA |
| Port Location | Side | Side | Side |
| Size Dimension | 7.87mm L x 5.54mm W | 7.87mm L x 5.54mm W | 7.87mm L x 5.54mm W |
| Output Type | Analog | Analog | Analog |
| Direction | - | - | - |
| Frequency Range | 100Hz ~ 4.2kHz | 100Hz ~ 4.2kHz | 100Hz ~ 4.7kHz |
| Sensitivity | -60dB ±3dB @ 74dB SPL | -61.5dB ±1.5dB @ 74dB SPL | -59.5dB ±3dB @ 74dB SPL |
| S N Ratio | - | - | - |
| Seal Rating | None | None | None |
| Height Max | 2.24mm | 2.24mm | 2.24mm |
| Shape | Rectangular | Rectangular | Rectangular |
| Operating Supply Voltage | 1.3 VDC | 1.3 VDC | 1.3 VDC |
| Depth | 2.24 mm | 2.24 mm | 2.24 mm |
| Length in | 0.31 in | 0.31 in | 0.31 in |
| Length mm | 7.87 mm | 7.87 mm | 7.87 mm |
| Width in | 0.218 in | 0.218 in | 0.218 in |
| Width mm | 5.54 mm | 5.54 mm | 5.54 mm |
| Directional Properties | - | Omnidirectional | Omnidirectional |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
Knowles |
BT-21759-000 | Microphones | |
| BT-21834-000 | Microphones | ||
| BT-21755-000 | Microphones | ||
| BT-21759-134 | Microphones | ||
| BT-21835-000 | Microphones | ||
| BT-21835-000 | Microphones | ||
| BT-21752-000 | Microphones | ||
| BT-21834-000 | Microphones | ||
| BT-21755-000 | Microphones | ||
| BT-21759-134 | Microphones | ||
| BT-21759-000 | Microphones | ||
| BT-21751-000 | Microphones | ||
| BT-21754-000 | Microphones | ||
TXC |
BT-212.500MBC-T | Standard Clock Oscillators 212.500MHz 3.3Volt 100ppm -10C +70C | |
| BT-212.500MCC-T | Standard Clock Oscillators 212.500MHz 2.5Volt 100ppm -10C +70C | ||
| BT-21751-005 | Microphones |