32.768KHz crystal oscillator

The 32.768kHz Crystal Oscillator is a precision timing device used to generate a stable clock signal at a frequency of 32.768kHz. This frequency is particularly common in real-time clock (RTC) circuits, where it provides accurate timekeeping for devices such as watches, clocks, and various electronic systems. The crystal oscillator offers high frequency stability, low power consumption, and reliable performance.

Key Features:

• Frequency: 32.768kHz
• High stability and low jitter
• Low power consumption
• Hermetically sealed package
• Excellent frequency accuracy and reliability
• Wide operating temperature range

Technical Specifications:

• Frequency: 32.768kHz
• Frequency Stability: ±20ppm (parts per million) or better
• Load Capacitance: 12.5pF (typical)
• Equivalent Series Resistance (ESR): 70 ohms (maximum)
• Drive Level: 1µW to 100µW
• Aging: ±3ppm/year
• Operating Temperature Range: -20°C to +70°C (standard); -40°C to +85°C (extended)
• Storage Temperature Range: -55°C to +125°C
• Package Type: HC-49U, SMD (Surface Mount Device) or through-hole
• Dimensions: Length: 11.5mm, Width: 4.5mm, Height: 3.5mm (for HC-49U package)

Applications:

• Real-Time Clocks (RTC): Provides accurate timekeeping in watches, clocks, and embedded systems.
• Timing Circuits: Used in various electronic circuits where precise timing is required.
• Frequency Reference: Serves as a stable frequency reference in digital and analog systems.
• Low-Power Devices: Ideal for battery-powered devices due to low power consumption.

Usage:

1. Select the appropriate package type (HC-49U or SMD) based on your PCB design and mounting requirements.
2. Ensure that the load capacitance and other specifications match the circuit requirements.
3. Solder the crystal oscillator onto the PCB, ensuring proper electrical connections.
4. Test the oscillator’s output using a frequency counter or oscilloscope to verify that it operates at the correct frequency.

Caution:

• Handle with care to avoid physical damage, which can affect performance.
• Avoid exposing the crystal oscillator to temperatures beyond its specified range to prevent damage.
• Ensure that the drive level does not exceed the recommended limits to avoid potential failure.

Datasheet:
For detailed technical specifications, refer to the 32.768kHz Crystal Oscillator Datasheet.