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| Part Number | AT-1224-TWT-5V-2-R | AT-1224-TWT-12V-2-R | AT-1127-ST-2-R | AT-1220-TT-R | AT-0927-TT-6-R |
| Manufacturer | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. | PUI Audio, Inc. |
| Series | AT | AT | AT | AT | AT |
| Packaging | Tray | Tray | Tray | Tray | Tray |
| Product Status | Active | Active | Active | Active | Active |
| Driver Circuitry | Transducer, Externally Driven | Transducer, Externally Driven | Transducer, Externally Driven | Transducer, Externally Driven | Transducer, Externally Driven |
| Input Type | Zero-Peak Signal | Peak-Peak Signal | Peak-Peak Signal | Peak-Peak Signal | Peak-Peak Signal |
| Voltage - Rated | 5 V | 12 V | 3 V | 1.5 V | 3 V |
| Voltage Range | 3 ~ 7V | 8 ~ 15V | 2 ~ 4V | 1 ~ 3V | 2 ~ 4V |
| Frequency | 2.4kHz | 2.4kHz | 2.73kHz | 2.048kHz | 2.73kHz |
| Technology | Electromechanical/Magnetic | Electromechanical/Magnetic | Electromechanical/Magnetic | Electromechanical/Magnetic | Electromechanical/Magnetic |
| Operating Mode | Single Tone | Single Tone | Single Tone | Single Tone | Single Tone |
| Duration | - | - | - | - | - |
| Sound Pressure Level (SPL) | 87dB @ 5V, 10cm | 85dB @ 12V, 10cm | 90dB @ 3V, 10cm | 82dB @ 1.5V, 10cm | 85dB @ 3V, 10cm |
| Current - Supply | 40mA | 40mA | 80mA | 10mA | 80mA |
| Port Location | Top | Top | Side | Top | Top |
| Operating Temperature | -30°C ~ 70°C | -30°C ~ 80°C | -20°C ~ 70°C | -20°C ~ 70°C | -20°C ~ 70°C |
| Approval Agency | - | - | - | - | - |
| Ratings | Washable | Washable | - | - | - |
| Ingress Protection | - | - | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Termination | PC Pins | PC Pins | PC Pins | PC Pins | PC Pins |
| Size / Dimension | 0.472" Dia (12.00mm) | 0.472" Dia (12.00mm) | 0.354" Dia (9.00mm) | 0.472" Dia (12.00mm) | 0.354" Dia (9.00mm) |
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