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Product Details Portlet
(*) Ultra Librarian uniquely created ECAD data based on the information provided by OMRON. Please note that OMRON does not guarantee the accuracy, concurrence or completeness of ECAD data.
* This is the average value of three measurements that were taken with the continuous horizontal vibration method with periods of 0.3 s, 0.5 s, and 0.7s.
Note: Ask your OMRON representative for details.
D7A Automatic Horizontal Vibration Sensor
Quickly Detect Earthquakes to Help Prevent Secondary Disasters. Auto-level Mechanism Enables Mounting at ±5°.
- Auto-level mechanism for mounting leeway of ±5°.
- Models provided for mounting to horizontal PCBs, vertical PCBs, or with screws.
RoHS Compliant
- English
Datasheet - EnglishSensors Selector Guide
- Japaneseデータシート
- Chinese目录
| Model | 2D/3D CAD | ECAD(Download symbol,FootPrint,3DCAD)
* External site (Ultra Librarian) opens in a new window. |
|---|---|---|
| D7A-2 | Download | Download |
Note: This web page provides an excerpt from a datasheet. Refer to Product Datasheet and other applicable documents for more information.
| Appearance | Mounting type | Model |
|---|---|---|
| Horizontal mount | D7A-1 | |
| Vertical mount | D7A-2 | |
| Screw mount | D7A-3-1 |
|
D7A-1 | D7A-2 | D7A-3-1 | |||||
|---|---|---|---|---|---|---|---|---|
| Horizontal mount | Vertical mount | Screw mount | ||||||
| Operating characteristic | Acceleration range | 90 to 170 gals* | ||||||
| Output | Contact form | SPST-NO | ||||||
| Electrical ratings | 5 µA to 1mA at 3 VDC | |||||||
| Contact resistance | Initial value: 1 Ω max. (measured at terminals) | |||||||
| Basic specifications | Electrical life expectancy | 10,000 operations (at 10 to 20 operations/min with resistive load of 1 mA at 3 VDC) | ||||||
| Degree of protection | IP40 (switch section) | |||||||
| Operating temperature | -30 to 70°C (with no icing or condensation) | |||||||
| Storage temperature | -30 to 70°C (with no icing or condensation) | |||||||
| Operating humidity | 25% to 85% | |||||||
| Dielectric strength | 250 VAC, 50/60 Hz for 1 min | |||||||
Note: Ask your OMRON representative for details.
Unit: mm (inch)
D7A-1  Note: Mount the Vibration Sensor to a PCB with a thickness of 1.6 mm and solder it. |
| D7A-2 Note: Mount the Vibration Sensor to a PCB with a thickness of 1.6 mm and solder it. |
| D7A-3-1 Note: Mount the Vibration Sensor with M4 mounting screws or the equivalent and tighten the screws to a torque of 0.981 to 1.176N·m |
