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| Part Number | ROM-2235L-HD-R | ROM-2235P-HD-R | ROM-2238P-NF-R | ROM-2244P-NF-R | ROM-2238P-NF |
| Manufacturer | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. |
| Series | ROM | ROM | - | - | - |
| Packaging | Bulk | Bulk | Bulk | Bulk | Bulk |
| Product Status | Active | Active | Active | Active | Obsolete |
| Type | Electret Condenser | Electret Condenser | Electret Condenser | Electret Condenser | Electret Condenser |
| Output Type | Analog | Analog | Analog | Analog | Analog |
| Direction | Omnidirectional | Omnidirectional | Omnidirectional | Omnidirectional | Omnidirectional |
| Frequency Range | 20 Hz ~ 20 kHz | 20 Hz ~ 20 kHz | 30 Hz ~ 15 kHz | 30 Hz ~ 15 kHz | - |
| Sensitivity | -35dB ±3dB | -35dB ±3dB | -38dB ±3dB | -44dB ±3dB | -38dB ±3dB |
| S/N Ratio | 68dB | 68dB | 60dB | 60dB | 60dB |
| Impedance | - | - | 2.2 kOhms | 2.2 kOhms | 2.2 kOhms |
| Voltage - Rated | 3 V | 3 V | 2 V | 2 V | 2 V |
| Voltage Range | - | - | 2 V ~ 10 V | 2 V ~ 10 V | 2 V ~ 10 V |
| Current - Supply | 500 µA | 500 µA | 500 µA | 500 µA | 500 µA |
| Port Location | Top | Top | Top | Top | Top |
| Ratings | - | - | - | - | - |
| Termination | Solder Pads | PC Pins | PC Pins | PC Pins | PC Pins |
| Size / Dimension | 0.228" Dia (5.80mm) | 0.228" Dia (5.80mm) | 0.228" Dia (5.80mm) | 0.228" Dia (5.80mm) | 0.228" Dia (5.80mm) |
| Height (Max) | 0.094" (2.40mm) | 0.094" (2.40mm) | 0.094" (2.40mm) | 0.094" (2.40mm) | 0.094" (2.40mm) |
| Shape | Circular | Circular | Circular | Circular | Circular |
| Grade | - | - | - | - | - |
| Qualification | - | - | - | - | - |
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