Behavioural mixed-signal modelKY-012 / TMB12A05buzzer_active
Active buzzer (with oscillator)
Magnetic buzzer with built-in oscillator: beeps at ~2.3 kHz as soon as + is above ~3 V (≈ 25 mA at 5 V) – digitalWrite is enough. Audible with 🔈.
Key data
- Category
- Audio
- Simulation model
- Behavioural mixed-signal model
- Manufacturer part number
- KY-012 / TMB12A05
- Reference prefix
- BZ
- Pins
- 2
- Land pattern
- Buzzer_12x9.5RM7.6
Simulation model
A behavioural model implements the interface of the chip (registers, protocol, timing) at its pins. The pins are connected to the analog circuit like CMOS pins.
- Model
- buzzer_active
- Supply pins
- P / N
Pins 2
| Pin | Name | Use |
|---|---|---|
| P | +Passive pin | Plus: to the supply or a GPIO (sounds while high) |
| N | −Passive pin | Minus: to GND |
Parameters 1
Tone frequency
freqDefault2300 Hz
PCB
Verified land pattern
Buzzer_12x9.5RM7.6buzzer 12 mm, 7.6 mm pin spacing, + on pad 1