10PCS Passive Buzzer 12MMx8.5MM 12085 42R Resistance 3V 5V 9V 12V in Common Use Mini Piezo Buzzers Kit, for Arduino

Description

10PCS Passive Buzzer Mini Piezo Kit – 12MM x 8.5MM 12085 42R Resistance (3V‑12V) – Ideal for Arduino Projects

Elevate your Arduino and electronics projects with this versatile 10‑piece passive buzzer kit. Each mini piezo buzzer is compact (12 mm × 8.5 mm) and built with a 12085 package, featuring a 42 Ω resistance for reliable performance across a wide voltage range (3 V to 12 V). Whether you’re designing alarms, notifications, or simple sound effects, these buzzers deliver crisp, clear tones without the need for a microcontroller’s PWM output.

Key Highlights

• 10 high‑quality passive buzzers in one convenient kit
• Compact 12 mm × 8.5 mm size – perfect for tight PCB spaces
• Built‑in 42 Ω resistor for safe operation at 3 V, 5 V, 9 V, and 12 V
• Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers
• Durable metal housing for long‑lasting sound output
• Wide frequency range (1 kHz–10 kHz) for versatile audio applications
• Low power consumption – ideal for battery‑powered devices

Technical Specifications

Dimensions: 12 mm (diameter) × 8.5 mm (height)
Package: 12085
Resistance: 42 Ω (built‑in)
Voltage Range: 3 V – 12 V (single supply)
Operating Frequency: 1 kHz – 10 kHz
Pin Layout: 2‑pin (positive & negative)
Material: Metal housing with ceramic piezo element

Applications

These passive buzzers are perfect for:

• Arduino hobby kits and educational projects
• Alarm systems, timers, and countdown displays
• Electronic toys and gadgets needing simple sound cues
• Industrial indicator panels and status alerts
• DIY home automation and smart device prototypes

Why Choose This Kit?

With a generous 10‑piece bundle, you’ll have spare buzzers for future builds or backup units. The built‑in 42 Ω resistor eliminates the need for external components, simplifying your circuit design. These buzzers are engineered for reliability, delivering clear tones even in noisy environments. Whether you’re a seasoned maker or just starting, this kit provides everything you need for crisp, dependable audio feedback in any project.