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9V Small Piezo Buzzer
Compact and reliable 9V small piezo buzzer, ideal for alarm circuits, notification systems, and embedded electronics projects. This miniature buzzer delivers a clear, audible tone while consuming minimal power, making it a must-have component for hobbyists, students, and professional engineers alike. Available now from The Engineer Store, Bengaluru, with fast shipping and dedicated technical support.
Specifications
| Component Type | Piezoelectric Buzzer (Active) |
| Operating Voltage | 9V DC (Range: 3V-12V) |
| Rated Current | <= 30mA |
| Sound Output | ~85dB at 10cm |
| Resonant Frequency | ~2.3 kHz (+/-500 Hz) |
| Buzzer Type | Active (built-in oscillator, continuous tone) |
| Form Factor | Small / Miniature cylindrical |
| Diameter | ~12mm |
| Connection | Two-wire lead (Red: +, Black: ) |
| Operating Temperature | 20 degreesC to +70 degreesC |
| Weight | ~5g |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Product Description
The 9V Small Piezo Buzzer is an active piezoelectric sound-emitting component that produces a steady, attention-grabbing tone when a DC voltage is applied across its terminals. Unlike passive buzzers that require an external oscillating signal, this active buzzer features a built-in oscillation circuit - simply connect power and it beeps immediately. Its compact cylindrical body, lightweight design, and low current draw make it exceptionally easy to integrate into breadboard prototypes, PCB designs, and finished enclosures.
Piezo buzzers work by exploiting the piezoelectric effect: an internal ceramic disc deforms rapidly when voltage is applied, producing sound waves at the component's resonant frequency. This mechanism is inherently durable - there are no moving mechanical parts to wear out - ensuring a long operational lifespan even in continuous-use applications. The 9V rating provides a loud, crisp tone suitable for audible alerts, while the wide operating range (3V-12V) offers flexibility across different power supply configurations.
Whether you're building a security alarm, a kitchen timer, a line-following robot with audio feedback, or a simple continuity tester, this small piezo buzzer delivers dependable performance in a tiny footprint.
Key Features
- Active Buzzer Design: Built-in oscillator circuit means no external signal generator needed - just apply DC voltage and it sounds.
- Compact Miniature Size: Approximately 12mm diameter fits easily on breadboards, perfboards, and tight PCB layouts.
- Wide Voltage Tolerance: Operates from 3V to 12V DC, compatible with 9V batteries, 5V Arduino pins (with transistor driver), and various power supplies.
- Clear Audible Output: ~85dB sound pressure level at 10cm ensures the tone is heard clearly in indoor and moderately noisy environments.
- Ultra-Low Power Consumption: Draws <=30mA, preserving battery life in portable and battery-powered projects.
- No Moving Parts: Piezoelectric mechanism ensures long lifespan, high reliability, and resistance to mechanical wear.
- Simple Two-Wire Connection: Polarized leads (red positive, black negative) for quick, error-free wiring.
- Lightweight Construction: Weighs only ~5g, adding negligible mass to drones, wearables, and portable devices.
- Wide Temperature Range: Functions reliably from 20 degreesC to +70 degreesC, suitable for indoor and outdoor deployments.
- Breadboard & PCB Compatible: Lead spacing and form factor designed for standard prototyping and production boards.
Why Choose This?
- 100% authentic piezo buzzer sourced from trusted and authorized component distributors
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse
- Expert technical support included - get help with wiring, circuit design, and troubleshooting
- Tested for quality and consistency before dispatch
- Ideal balance of size, volume, and power efficiency for most common applications
- Trusted by thousands of engineers, makers, and educational institutions across India
How It Works
A piezo buzzer converts electrical energy into mechanical vibration and, consequently, sound. Inside the buzzer housing, a thin piezoelectric ceramic disc is bonded to a metal diaphragm. When a voltage is applied, the ceramic disc expands and contracts at high speed due to the inverse piezoelectric effect. In an active buzzer like this one, a built-in oscillator circuit alternates the voltage at the disc's resonant frequency (~2.3 kHz), causing the diaphragm to vibrate and push air molecules - producing an audible tone.
Because the oscillation circuit is internal, you only need to supply a steady DC voltage (ideally
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 9V Small Piezo Buzzer Online in India
Purchase the 9V Small Piezo Buzzer online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 9V Small Piezo Buzzer with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 9V Small Piezo Buzzer at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
9V Small Piezo Buzzer
Compact and reliable 9V small piezo buzzer, ideal for alarm circuits, notification systems, and embedded electronics projects. This miniature buzzer delivers a clear, audible tone while consuming minimal power, making it a must-have component for hobbyists, students, and professional engineers alike. Available now from The Engineer Store, Bengaluru, with fast shipping and dedicated technical support.
Specifications
| Component Type | Piezoelectric Buzzer (Active) |
| Operating Voltage | 9V DC (Range: 3V-12V) |
| Rated Current | <= 30mA |
| Sound Output | ~85dB at 10cm |
| Resonant Frequency | ~2.3 kHz (+/-500 Hz) |
| Buzzer Type | Active (built-in oscillator, continuous tone) |
| Form Factor | Small / Miniature cylindrical |
| Diameter | ~12mm |
| Connection | Two-wire lead (Red: +, Black: ) |
| Operating Temperature | 20 degreesC to +70 degreesC |
| Weight | ~5g |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Product Description
The 9V Small Piezo Buzzer is an active piezoelectric sound-emitting component that produces a steady, attention-grabbing tone when a DC voltage is applied across its terminals. Unlike passive buzzers that require an external oscillating signal, this active buzzer features a built-in oscillation circuit - simply connect power and it beeps immediately. Its compact cylindrical body, lightweight design, and low current draw make it exceptionally easy to integrate into breadboard prototypes, PCB designs, and finished enclosures.
Piezo buzzers work by exploiting the piezoelectric effect: an internal ceramic disc deforms rapidly when voltage is applied, producing sound waves at the component's resonant frequency. This mechanism is inherently durable - there are no moving mechanical parts to wear out - ensuring a long operational lifespan even in continuous-use applications. The 9V rating provides a loud, crisp tone suitable for audible alerts, while the wide operating range (3V-12V) offers flexibility across different power supply configurations.
Whether you're building a security alarm, a kitchen timer, a line-following robot with audio feedback, or a simple continuity tester, this small piezo buzzer delivers dependable performance in a tiny footprint.
Key Features
- Active Buzzer Design: Built-in oscillator circuit means no external signal generator needed - just apply DC voltage and it sounds.
- Compact Miniature Size: Approximately 12mm diameter fits easily on breadboards, perfboards, and tight PCB layouts.
- Wide Voltage Tolerance: Operates from 3V to 12V DC, compatible with 9V batteries, 5V Arduino pins (with transistor driver), and various power supplies.
- Clear Audible Output: ~85dB sound pressure level at 10cm ensures the tone is heard clearly in indoor and moderately noisy environments.
- Ultra-Low Power Consumption: Draws <=30mA, preserving battery life in portable and battery-powered projects.
- No Moving Parts: Piezoelectric mechanism ensures long lifespan, high reliability, and resistance to mechanical wear.
- Simple Two-Wire Connection: Polarized leads (red positive, black negative) for quick, error-free wiring.
- Lightweight Construction: Weighs only ~5g, adding negligible mass to drones, wearables, and portable devices.
- Wide Temperature Range: Functions reliably from 20 degreesC to +70 degreesC, suitable for indoor and outdoor deployments.
- Breadboard & PCB Compatible: Lead spacing and form factor designed for standard prototyping and production boards.
Why Choose This?
- 100% authentic piezo buzzer sourced from trusted and authorized component distributors
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse
- Expert technical support included - get help with wiring, circuit design, and troubleshooting
- Tested for quality and consistency before dispatch
- Ideal balance of size, volume, and power efficiency for most common applications
- Trusted by thousands of engineers, makers, and educational institutions across India
How It Works
A piezo buzzer converts electrical energy into mechanical vibration and, consequently, sound. Inside the buzzer housing, a thin piezoelectric ceramic disc is bonded to a metal diaphragm. When a voltage is applied, the ceramic disc expands and contracts at high speed due to the inverse piezoelectric effect. In an active buzzer like this one, a built-in oscillator circuit alternates the voltage at the disc's resonant frequency (~2.3 kHz), causing the diaphragm to vibrate and push air molecules - producing an audible tone.
Because the oscillation circuit is internal, you only need to supply a steady DC voltage (ideally
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 9V Small Piezo Buzzer Online in India
Purchase the 9V Small Piezo Buzzer online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 9V Small Piezo Buzzer with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 9V Small Piezo Buzzer at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.