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| PartNumber | SPM0437HD4H | SPM0437HD4H-B-6 | SPM0437HD4H-B |
| Description | SISONIC MINI TOP PORT DIGITAL S | MEMS Microphones MIC MEMS DIGITAL PDM OMNI -26DB | |
| Manufacturer | Knowles | - | Knowles |
| Product Category | Microphones | - | Microphones |
| Series | SiSonic SP | - | SiSonic |
| Type | MEMS (Silicon) | - | MEMS (Silicon) |
| Packaging | - | - | Digi-ReelR Alternate Packaging |
| Impedance | - | - | - |
| Termination | - | - | Solder Pads |
| Voltage Rated | 1.6 ~ 3.6V | - | 1.6 ~ 3.6V |
| Current Supply | - | - | 500μA |
| Port Location | Top | - | Top |
| Size Dimension | - | - | 4.72mm L x 3.76mm W |
| Output Type | Digital, PDM | - | Digital, PDM |
| Direction | - | - | Omnidirectional |
| Frequency Range | 10Hz ~ 10kHz | - | 100Hz ~ 10kHz |
| Sensitivity | - | - | -26dB ±3dB @ 94dB SPL |
| S N Ratio | - | - | 57.5dB |
| Seal Rating | None | - | None |
| Height Max | - | - | 1.35mm |
| Shape | - | - | Rectangular |
| Mounting Style | - | - | SMD/SMT |
| Termination Style | - | - | SMD/SMT |
| Tradename | - | - | SiSonic |
| Length | - | - | 4.72 mm |
| Width | - | - | 3.76 mm |
| Operating Supply Voltage | - | - | 3.6 V |
| Depth | - | - | 1.35 mm |
| Operating Supply Current | - | - | 500 uA |
| Dimensions | - | - | 4.72 mm L x 3.76 mm W x 1.35 mm D |
| SNR Signal to Noise Ratio | - | - | 57.5 dB |
| Directional Properties | - | - | Omnidirectional |