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| PartNumber | WM7132PIMSE/RV | WM7137IMSE/RV | WM7133LIMS/RV |
| Description | MEMS Microphones Analogue MEMS Mic - Bottom Port | MEMS Microphones Analogue MEMS Mic - Bottom Port | |
| Manufacturer | Cirrus Logic | Cirrus Logic Inc. | Cirrus Logic Inc. |
| Product Category | MEMS Microphones | Microphones | Microphones |
| RoHS | Y | - | - |
| Series | WM7132 | WM7137 | WM7133L |
| Sensitivity | - 38 dB | -38dB ±1dB @ 94dB SPL | -38dB ±3dB @ 94dB SPL |
| Tolerance | 1 dB | - | - |
| SNR Signal to Noise Ratio | 65 dB | - | - |
| Impedance | 100 Ohms | 55 Ohm | 55 Ohm |
| Frequency Range | 62 Hz to 12.5 kHz | 85Hz ~ 10.6kHz | 85Hz ~ 10.6kHz |
| Operating Supply Current | 200 uA | - | - |
| Operating Supply Voltage | 3.7 V | 3.7 V | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 100 C | - | - |
| Output Type | Analog | Analog | Analog |
| Port Type | Bottom | - | - |
| Length | 3.76 mm | 3.76 mm | - |
| Width | 3 mm | 3 mm | - |
| Depth | 1.1 mm | 1.1 mm | - |
| Packaging | Reel | Reel | Digi-ReelR |
| Directional Properties | Omnidirectional | - | - |
| Package / Case | LGA-6 | - | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Type | Analog Silicon Microphone | MEMS (Silicon) | MEMS (Silicon) |
| Brand | Cirrus Logic | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Shape | Rectangular | * | Rectangular |
| Moisture Sensitive | Yes | - | - |
| Product Type | MEMS Microphones | - | - |
| Factory Pack Quantity | 5000 | - | - |
| Subcategory | Microphones | - | - |
| Termination | - | * | Solder Pads |
| Voltage Rated | - | 1.5 ~ 3.7V | 1.5 ~ 3.7V |
| Current Supply | - | 240μA | 240μA |
| Port Location | - | Bottom | Bottom |
| Size Dimension | - | * | 3.35mm L x 2.50mm W |
| Direction | - | Omnidirectional | Omnidirectional |
| S N Ratio | - | 62dB | 64.5dB |
| Seal Rating | - | None | None |
| Height Max | - | * | 1.08mm |
| Dimensions | - | 3.76 mm L x 3 mm W x 1.1 mm D | - |
| SNR Signal to Noise Ratio | - | 62 dB | - |