SFM-20B Piezo Buzzer Alarm 3-24VDC 95dB 23x12mm
Prices updated: 14 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Makers Electronics | SFM-20B Piezo Buzzer Alarm 3-24VDC 95dB 23x12mm | 25 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 25 EGP
About this product
The SFM-20B is a compact active piezoelectric alarm buzzer for continuous audible alerts in low-voltage DC systems. It operates from 3–24 VDC and produces a 95 dB tone in a small 23×12 mm package.
Specifications
- Type
- Active piezo buzzer alarm
- Operating voltage
- 3–24 VDC
- Sound level
- 95 dB
- Tone
- Continuous
- Dimensions
- 23 × 12 mm
Frequently asked questions
What is the price of SFM-20B Piezo Buzzer Alarm 3-24VDC 95dB 23x12mm in Egypt?
SFM-20B Piezo Buzzer Alarm 3-24VDC 95dB 23x12mm currently costs 25 EGP in Egypt.
Where can I buy SFM-20B Piezo Buzzer Alarm 3-24VDC 95dB 23x12mm in Egypt?
SFM-20B Piezo Buzzer Alarm 3-24VDC 95dB 23x12mm is available from Makers Electronics. Compare the offers above to find the best price.
How should I connect the power leads?
Connect the positive lead to the supply and the negative lead to ground, following the markings on the part. Reversing the polarity may damage the buzzer, so check the datasheet before wiring.
Can I drive it directly from a microcontroller pin?
For low current draw, a microcontroller output can switch it on and off. If the buzzer's current exceeds the pin's rating, use a transistor or MOSFET driver powered from the buzzer's supply voltage.
