Description
🔊 High-Decibel 2312 Active Piezoelectric Buzzer for Alarms, Indicators & DIY Projects
Looking for a reliable, loud, and compact buzzer module? The SFM-20B 2312 Active Buzzer delivers high-decibel continuous sound, making it ideal for alarms, warning systems, and Arduino or microcontroller-based projects. Operates on a wide DC voltage range of 3V to 24V, with built-in driving circuit – just connect power, and it sounds!
⚙️ Key Features
-
✅ Wide Voltage Range: Operates from DC 3V to 24V, suitable for multiple platforms.
-
✅ Active Buzzer: Built-in oscillating circuit – no external driver or microcontroller signal needed.
-
✅ High Sound Output: Loud alert at 85–95dB @ 12V, perfect for noisy environments.
-
✅ Compact Design: Diameter 23mm x Height 20mm – fits into tight spaces.
-
✅ Pre-soldered Cable: Ready-to-use with 2-pin red/black wire for quick connection.
-
✅ Durable Build: ABS plastic casing and sealed body for long-term use.
-
✅ Continuous Sound: Sounds as long as power is applied – ideal for continuous alerts.
📐 Specifications
| Parameter | Value |
|---|---|
| Model | SFM-20B (2312) |
| Type | Active Piezoelectric Buzzer |
| Voltage Range | DC 3V – 24V |
| Rated Voltage | DC 12V |
| Sound Output | 85 – 95dB @ 12V |
| Sound Type | Continuous Tone |
| Current Consumption | ≤ 30mA @ 12V |
| Cable Length | Approx. 10–15cm (2-wire cable) |
| Body Material | Black ABS Plastic |
| Mounting Style | Panel Mount / Adhesive Tape |
| Size | Ø23mm × 20mm (Height) |
| Polarity | Red (+), Black (–) |
🔧 Applications
-
🚨 Security & burglar alarms
-
🏭 Industrial alert systems
-
🚗 Car reverse buzzers
-
📟 Home automation
-
🔋 Battery low indicators
-
🛠️ Arduino, Raspberry Pi & DIY electronics
📦 What’s Included
-
1 × 2312 Active Buzzer SFM-20B with cable (Pre-wired)
Reviews
There are no reviews yet.