The CST-931AP is a buzzer made by CUI in a 插件,D=9mm package with 2 pins. -20℃~+60℃ 2.73kHz 2V~4V 5mm 85dB 9mm Electromagnetic Passive (Externally Driven) 插件,D=9mm Buzzers ROHS.
PCBKit's library has its KiCad symbol (Device:Buzzer, from KiCad's library) and its footprint (EasyEDA_Cloud:BUZ-TH_BD9.0-P4.00-D0.6-L-FD, from EasyEDA), ready for a KiCad board. 20 are in stock at JLCPCB (part C3812142). 3 open-source boards in 3 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | + | Passive |
| 2 | - | Passive |
nakul-biovaco/Embedsys-embedded-educational-board
Industrial-grade ESP32-WROOM-32E educational development board (4-layer ENIG PCB, BQ24075 power-path, dual regulators, ST7789 IPS display & SHT40 sensor). 0 DRC certified.
Akhilesh-design-02/STM32F407-Hardware-Design
4-layer STM32F407 mixed-signal PCB design featuring I2C/I2S/USB interfaces, SGP40 & SHT40 sensors, power plane splits, and star grounding for noise isolation.
<iframe src="https://pcbkit.io/embed/parts/cui/CST-931AP" title="CST-931AP in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cui/CST-931AP.jpg" alt="CST-931AP" width="1200" height="900">[](https://pcbkit.io/parts/cui/CST-931AP)Yes. The symbol is Device:Buzzer and the footprint EasyEDA_Cloud:BUZ-TH_BD9.0-P4.00-D0.6-L-FD, both drawn on this page. PCBKit places them on a board for you when you design with it.
插件,D=9mm, with 2 pins. Its footprint is drawn on this page.
CUI publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C3812142, with 20 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the GMC0942YB-16R2700 by INGHAi, the KXG0903C3 by KINGSTATE, the KSSG74B16 by KINGSTATE and the CMT-8530S-SMT-TR by CUI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
