4 MHz Crystal + 20pF capacitors

A 4.000MHz quartz crystal in the HC49/US short-style package, bundled with two 20pF load capacitors. This breadboard-friendly crystal provides precise timing for microcontrollers and other circuits requiring an external clock source.

With 30PPM tolerance and 50PPM stability, it is suitable for high-precision applications including USB timing, long-term timekeeping, and RF/PLL/VCO driving.

Key Features

• 4.000MHz Frequency – Precise quartz crystal oscillator
• HC49/US Package – Standard short-style, breadboard friendly
• High Precision – 30PPM tolerance, 50PPM stability
• Capacitors Included – Two 20pF load capacitors bundled

Specifications

• Frequency – 4.000MHz
• Package – HC49/US (short style)
• Tolerance – ±30PPM
• Stability – ±50PPM
• Load Capacitors – 20pF (included)

Wiring

Connect the two crystal pins to XTAL-in and XTAL-out on your microcontroller (the package is symmetric). Place one 20pF capacitor from each crystal pin to ground. Check your microcontroller datasheet for any additional components such as a 1MΩ feedback resistor.

Package Contents

• 1× 4MHz Quartz Crystal (HC49/US)
• 2× 20pF Ceramic Capacitors