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| PartNumber | PT-1520PQ | PT-1540WQ | PT-1540PQ |
| Description | Audio Indicators & Alerts BUZZER PIEZO 3-25VPP 72DB 2.0KHZ | Audio Indicators & Alerts XDUCR, PIEZO, 4KHZ 80DB, FLANGE, 17X8.5 | Audio Indicators & Alerts XDUCR, PIEZO, 4KHZ 80DB, PC PINS, 17X9 |
| Manufacturer | Mallory Sonalert | Mallory Sonalert | - |
| Product Category | Audio Indicators & Alerts | Audio Indicators & Alerts | - |
| RoHS | Y | Details | - |
| Product | Transducers | Transducers | - |
| Type | Piezoelectric Buzzer | Piezoelectric | - |
| Sound Pressure Level | 72 dBA | - | - |
| Tone | Dual Tone | - | - |
| Frequency | 2 kHz | - | - |
| Voltage Rating | 25 V | - | - |
| Current Rating | 1.5 mA | - | - |
| Termination Style | Solder Pin | - | - |
| IP Rating | - | - | - |
| Diameter | 17 mm | - | - |
| Dimensions | 17 mm L x 17 mm W x 6.8 mm H | - | - |
| Mounting | Through Hole | - | - |
| Height | 6.8 mm | - | - |
| Length | 17 mm | - | - |
| Series | PT | PT | - |
| Width | 17 mm | - | - |
| Brand | Mallory Sonalert | Mallory Sonalert | - |
| Height in | 0.268 in | - | - |
| Height mm | 6.8 mm | - | - |
| Product Type | Audio Indicators & Alerts | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Audio Devices | - | - |
| Unit Weight | 0.042329 oz | - | - |