4 MHz Ceramic Resonator, 3-Pin
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Prices updated: 12 Oct 2026
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About this product
A 3-pin 4 MHz ceramic resonator made from piezoelectric ceramic, typically lead zirconium titanate (PZT). In an oscillator circuit it generates a clock signal at its rated frequency, used for timing in microcontrollers and digital logic. Its frequency accuracy is lower than a quartz crystal, so it suits applications without strict timing needs.
Specifications
- Frequency
- 4 MHz
- Number of pins
- 3
- Type
- Ceramic resonator
- Material
- Piezoelectric ceramic (PZT)
Frequently asked questions
Can I use it instead of a quartz crystal?
It works in many microcontroller oscillator circuits, but its frequency accuracy is lower than a quartz crystal. Avoid it in timing-critical designs.
How do I wire its three pins?
Typically the two outer pins connect to the oscillator inputs of the microcontroller, and the centre pin connects to ground. Some types include built-in load capacitors, so check the datasheet before adding external capacitors.
