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| Part Number | AMM-3738-B-R | AMM-2742-T-R | AMM-2742-T-WP-R | AMM-3742-T-R | AMM-2738-B-R |
| Manufacturer | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. |
| Series | - | - | - | - | - |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Active | Active | Active | Active |
| Type | MEMS (Silicon) | MEMS (Silicon) | MEMS (Silicon) | MEMS (Silicon) | MEMS (Silicon) |
| Output Type | Analog | Analog | Analog | Analog | Analog |
| Direction | Omnidirectional | Omnidirectional | Omnidirectional | Omnidirectional | Omnidirectional |
| Frequency Range | 20 Hz ~ 20 kHz | 20 Hz ~ 20 kHz | 20 Hz ~ 20 kHz | 50 Hz ~ 20 kHz | 20 Hz ~ 20 kHz |
| Sensitivity | -38db ±1dB | -42dB ±1dB | -42dB ±1dB | -42dB ±1dB | -38db ±1dB |
| S/N Ratio | 62dB | 59dB | 59dB | 58dB | 64dB |
| Impedance | 300 Ohms | 300 Ohms | 300 Ohms | 300 Ohms | 300 Ohms |
| Voltage - Rated | 2 V | 2 V | 2 V | 1.5 V | 2 V |
| Voltage Range | 1.5 V ~ 3.6 V | 1.5 V ~ 3.6 V | 1.6 V ~ 3.6 V | 1.5 V ~ 3.6 V | 1.5 V ~ 3.6 V |
| Current - Supply | 200 µA | 150 µA | 200 µA | 200 µA | 150 µA |
| Port Location | Bottom | Top | Top | Top | Bottom |
| Ratings | - | - | IP57 - Dust Protected, Waterproof | - | - |
| Termination | Solder Pads | Solder Pads | Solder Pads | Solder Pads | Solder Pads |
| Size / Dimension | 0.148" L x 0.116" W (3.76mm x 2.95mm) | 0.108" L x 0.073" W (2.75mm x 1.85mm) | 0.108" L x 0.073" W (2.75mm x 1.85mm) | 0.148" L x 0.116" W (3.76mm x 2.95mm) | 0.108" L x 0.073" W (2.75mm x 1.85mm) |
| Height (Max) | 0.047" (1.20mm) | 0.039" (1.00mm) | 0.039" (1.00mm) | 0.047" (1.20mm) | 0.039" (1.00mm) |
| Shape | Rectangular | Rectangular | Rectangular | Rectangular | Rectangular |
| Grade | - | - | - | - | - |
| Qualification | - | - | - | - | - |
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