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Plate Material: Brass.
Resonant Frequency: 3.5 +/- 0.5 KHz.
Resonant Impedance: less than or equal to 300 Ohms.
Static Capacitance: 28000PF +/- 30%.
Storage Temop:-30 degree Celsius-+70 degree Celsius.
External Diameter:27mm / 1.06 Inch.
Inside Diameter:20mm /0.79 Inch.
Lead Length: 10cm /3.94 Inch.
Package Contents: 15 PCS.
Suitable for DIY projects, contact microphones, cigar box guitar pickups, touch sensors, drum triggers, homemade speakers, buzzers, etc.
hon
2025-09-04 18:09:05
Used these as a contact microphone and they work about as well as expected. The disc is larger than most but the wires are really thin and flimsy
Reverend Danyul
2025-07-27 10:20:18
I needed 3 to make some rock band cymbals. Can't beat the price. I am not great at soldering so having extra was useful.
Jor-El
2025-07-19 14:30:36
Not much to say here, they are cheap and work. I wish the connectors were soldered on with a little more protection but I had them in a sound installation between some tape and some pieces of wood and people walked all over them and they never broke or had any problems. Very typical piezos and they work fine.
Cod65
2025-07-08 10:45:14
Fixed the roland octopad with these. Perfect good price
W. Liu
2025-06-16 18:10:46
Perfect replacement sensors for electronic drum set.
Craig Whisenhunt
2025-03-23 14:04:44
We used these in a science fair project to charge a small battery from energy created while walking around. They worked great for prototyping (and demonstrating the limitations of the idea). Very easy to burn through if you need to solder them into a circuit, but not likely what most people will use them for, and with a steady hand it’s not really an issue (our 7 year old is still very new to this and killed a couple, but that’s not the fault of the product).
James Bradley
2025-02-10 18:41:40
Unit was delivered in a very timely manner.
Swiercjj
2024-11-13 18:17:23
They worked. Did what they were supposed to do. I have spoken.
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