SXT22419AA48-12.000M

Crystals Overview

The SXT22419AA48-12.000M is a surface-mount crystal oscillator manufactured by Suntsu Electronics, Inc., designed for precise timing applications. It operates at a fundamental frequency of 12.000 MHz with a frequency tolerance of ±50ppm and a frequency stability of ±50ppm across the operating temperature range. The component features a load capacitance of 19pF and an equivalent series resistance (ESR) of 120 Ohms. It utilizes a 4-SMD, No Lead package with dimensions of 2.5mm x 2.0mm. The device supports reflow soldering and is packaged in tape and reel format for automated assembly processes.

Crystals Feature Summary

• Fundamental mode operation ensures low equivalent series resistance for reliable startup.
• Compact 4-SMD no-lead package facilitates high-density surface mount placement.
• Standardized 19pF load capacitance simplifies circuit design without external matching components.

Crystals Applications

• Microcontroller unit clock sources
• Communication interface timing references
• Industrial measurement instrument oscillators

Crystals Procurement Notes

Verify the specific suffix 'M' indicates the standard tape and reel packaging configuration as documented in official Suntsu datasheets. Confirm that the 120 Ohm ESR specification aligns with the target circuit's drive level requirements to prevent over-driving the crystal. Ensure the 19pF load capacitance matches the host system's input capacitance calculations to maintain the specified ±50ppm frequency accuracy. Cross-reference the 4-SMD no-lead footprint dimensions against the PCB silkscreen to guarantee mechanical compatibility during assembly.

Crystals Selection Notes

Select this component when a 12 MHz reference signal is required with moderate stability specifications suitable for general-purpose digital logic. The ±50ppm tolerance is appropriate for systems where strict phase alignment is not critical compared to higher-grade ±10ppm variants. Consider the 120 Ohm ESR value when designing the oscillator circuit to ensure sufficient loop gain for reliable oscillation start-up under all environmental conditions.

Crystals Part Context

This part belongs to the SXT22419 series of surface-mount crystals from Suntsu Electronics, which are characterized by their small form factor and industrial-grade reliability. The series offers various frequency options within the 3.579 MHz to 27 MHz range, catering to diverse embedded system needs. The 12.000 MHz variant specifically targets common microcontroller clock speeds and serial communication baud rate generation.

Crystals Replacement Considerations

Direct substitutes must match the 12.000 MHz frequency, 19pF load capacitance, 4-SMD no-lead package, and similar electrical parameters. Verify that alternative manufacturers provide comparable ESR values and frequency stability ratings to ensure circuit compatibility without redesign.