10PCS 12MM*8.5MM 12085 Passive Buzzer 42R Resistance 3V 5V 9V 12V in Common Use Mini Piezo Buzzers Kit, for Arduino

10PCS 12MM*8.5MM 12085 Passive Buzzer 42R Resistance 3V 5V 9V 12V in Common Use Mini Piezo Buzzers Kit, for Arduino

Upgrade your projects with the 10PCS 12MM × 8.5MM 12085 Passive Buzzer Kit. Designed for Arduino and other micro‑controller platforms, these compact mini piezo buzzers deliver clear, reliable tones across a wide voltage range (3 V‑12 V) while maintaining a low 42 Ω resistance. Perfect for hobbyists, educators, and engineers who need consistent audio feedback without the bulk of active buzzers.

Key Highlights

  • 🔊 Passive design – lets you control tone, pitch, and duration via software for ultimate flexibility.
  • 📏 Compact size: 12 mm × 8.5 mm fits tight spaces on PCBs and breadboards.
  • ⚡ Wide voltage compatibility: Operates smoothly at 3 V, 5 V, 9 V, and 12 V.
  • 🔧 42 Ω resistance ensures low power consumption and protects your micro‑controller.
  • 🛠️ 10‑piece kit – enough for multi‑module prototypes, classroom sets, or spare parts.
  • 💡 Easy mounting with standard 2.54 mm (0.1″) pitch pins for quick solder‑less insertion.

Compatibility & Applications

These buzzers are fully compatible with Arduino, Raspberry Pi, ESP32, PIC, and any platform that can output PWM or digital signals. Ideal for:

  • Alarm and warning systems
  • Interactive toys and games
  • Robotics feedback
  • DIY musical instruments
  • Educational electronics kits

Technical Specifications

  • Model: 12085
  • Dimensions: 12 mm × 8.5 mm (diameter × height)
  • Resistance: 42 Ω (typical)
  • Operating Voltage: 3 V – 12 V
  • Frequency Range: 2 kHz – 5 kHz (depends on driving signal)
  • Current Consumption: ≤ 30 mA at 12 V
  • Package: 10 pcs in anti‑static bag

Why Choose This Mini Piezo Buzzer Kit?

When you need precise audio cues without the added circuitry of an active buzzer, our passive buzzers give you full control over tone generation. The sturdy construction and low resistance protect your board while delivering crisp sound, making them a reliable choice for both prototype development and final product builds.

Order now and add a versatile sound solution to your Arduino toolbox!


Price: Original price was: $ 7.29.Current price is: $ 3.42.

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