SFM 20B Buzzer
SFM 20B Buzzer está esgotado e será enviado assim que estiver de novo em estoque.
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SFM 20B Buzzer
£3.62
SFM-20B DC 3–24V Piezoelectric Alarm Buzzer (95 dB)
The SFM-20B piezoelectric alarm buzzer is a compact and efficient sounder designed for alarm and notification applications. Operating across a wide 3–24V DC voltage range, it offers flexibility for use in a variety of electronic projects, including Arduino-based builds and car alarm systems. With a 95 dB sound pressure level, it delivers a loud, clear alert that is easy to hear in different environments.
Designed for efficiency, this buzzer features low energy consumption, making it suitable for battery-powered devices. Its compact 23 × 12 mm size allows easy integration into space-constrained designs. Installation is straightforward thanks to two mounting holes spaced 30 mm apart and 90 mm connection wires for added convenience.
Key Features
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Wide operating voltage range: 3–24V DC
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Loud and clear 95 dB sound output
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Low power consumption
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Compact and lightweight form factor
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Easy installation with mounting holes and long wires
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Suitable for alarm and communication system applications
Specifications
| Parameter | Value |
|---|---|
| Model | SFM-20B |
| Type | Piezoelectric Buzzer |
| Operating Voltage | 3–24V DC |
| Sound Pressure Level | 95 dB |
| Current Rating | 12 mA |
| Sound Frequency | 3300 ± 500 Hz |
| Size | 23 × 12 mm |
| Wire Length | 90 mm |
| Mounting Holes Distance | 30 mm |
Package Contents
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1 × SFM-20B DC 3–24V Piezoelectric 95 dB Alarm Buzzer

