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Ten brass piezo discs 35mm diameter with short wires

Unique-Bargains

Unique-Bargains 10 Piezo Discs 35mm Brass Transducer Pickup

SKU CH-9PMX-J1S3S

Ten brass piezo discs, 35 mm diameter, resonant frequency 3.0–5.0 kHz, impedance up to 300 ohms, for acoustic instrument pickups

  • TypeGadgets
  • Resonant frequency 3.0~5.0±0.5 KHz for clear acoustic pickup
  • 300 ohms max impedance with low power consumption for high sensitivity
  • 35 mm brass discs made from selected copper for excellent conductivity
  • 30 mm cable length allows easy installation on guitars and drums
  • Pack of 10 discs suits contact mics, stomp boxes and instrument triggers

Brass Piezo Discs for Acoustic Pickups

This pack contains ten brass piezoelectric discs designed as core components for building acoustic instrument pickups. Each disc measures 35 mm in diameter and 0.3 mm thick with a 30 mm lead attached. They suit DIY projects such as contact microphones, stomp boxes and trigger sensors for guitars or drums.

Resonant Range and Impedance Limits

The discs operate at a resonant frequency of 3.0~5.0+/- 0.5 kHz and present a maximum resonant impedance of 300 ohms. This narrow bandwidth means they capture a focused slice of the vibration spectrum rather than a full-range audio signal. Builders needing flat response across the audible band will need additional circuitry or a different transducer type.

35 mm Brass Element Decides Fit

The 35 mm brass element determines whether the disc fits your instrument’s mounting surface or pickup cavity. If your design calls for a smaller or larger diameter, or a thicker wafer, these discs will not match the mechanical requirements. The fixed 30 mm lead length also sets the maximum distance to your preamp or jack without soldering extensions.

Highlights

  • Resonant frequency 3.0~5.0±0.5 KHz for clear acoustic pickup
  • 300 ohms max impedance with low power consumption for high sensitivity
  • 35 mm brass discs made from selected copper for excellent conductivity
  • 30 mm cable length allows easy installation on guitars and drums
  • Pack of 10 discs suits contact mics, stomp boxes and instrument triggers

Specifications

BrandUnique Bargains
TypeGadgets

Questions about this item

How many discs come in the pack and what size are they?

The pack contains 10 brass piezo discs, each 35mm in diameter and 0.3mm thick, with a 30mm lead cable attached.

What does the 3.0~5.0 KHz resonant frequency mean for my instrument pickup?

The discs respond most strongly between 3.0 and 5.0 KHz, so they capture the upper-mid attack of an acoustic guitar or drum trigger clearly while rolling off lower bass frequencies.

How does the 300 ohm maximum impedance affect wiring into a preamp or stomp box?

With impedance up to 300 ohms the discs work directly into typical high-impedance instrument inputs without a matching transformer, keeping the circuit simple.

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