https://diotronic.com/zumbadores-y-sirenas/13258-zumbador-d-14-3-16vcc-7ma-4khz
ZUMBADOR D:14 3-16VCC 7MA 4KHZ
zumbador
https://ewinginc.com/product/cx-1-sm2-614-4khz-500-i/
CX-1-SM2 614.4KHZ 500/I - Ewing Components
Low Profile, Miniature Surface Mount Quartz Crystal 614.4 kHz
cxewingcomponents