Can anyone identify this silver vibration sensor/accelerometer used on these samples ? It runs on 4.5v batteries, is approximately 2.8mm x 1.8mm x 0.5mm, is used in very cheap toys to detect impact, and then have the IC turn on the LED lights for a few seconds.
Maybe the silver part is not an accelerometer. Very likely a metal-cased tilt or vibration switch. Something like the SW-18010P. These are much cheaper than accelerometers. MEMS accelerometers usually look like this.LSM6DSL iNEMO Inertial Module, Always-on 3D Accelerometer, and 3D Gyroscope - The Engineering Projects
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Thank you very much for this reply. Certainly similar functionality, ultralow power consumption, low price, and similar footprint. Cannot tell how sensitive the LSM6DSL is though… like an SW-18010P, or more like SW-18030P Slow (less sensitive) ? Looking for a low sensitivity solution (needs to be struck to activate).
If you’re just after strike-to-activate behavior, want ultra-low complexity and price, and are okay with mechanical solutions, then SW-18030P is the easiest and most robust.
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Hello @danoblenis
Welcome to the TechForum
Would you be able to get closer pictures of the chips that you are looking at?
Yes, attached are several close-ups of the component. No markings visible - may not be on the market. We did get one off the board, wired up, and captured trigger event on oscilloscope. Likely Piezoelectric, as high G shaking does not activate, tapping does. Finding a an ultra-low power component on the market with same/very similar sensitivity and form factor is the goal. Images: Top, Bottom, Side1.
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Hello again danoblenis,
Thank you for contacting DigiKey Technical support.
I am sorry to inform you that I was not able to ID that part.