SXT2249AA27-12.000M

Crystals Overview

The SXT2249AA27-12.000M is a surface-mount crystal oscillator manufactured by Suntsu Electronics, Inc., designed for fundamental mode operation at a nominal frequency of 12 MHz. It features a 4-SMD, no-lead package configuration with a load capacitance of 9 pF and an equivalent series resistance (ESR) of 120 Ohms. The component exhibits a frequency tolerance of ±50 ppm and operates within a temperature range of -20°C to +70°C. This specification supports standard digital clocking applications requiring reliable frequency stability in consumer-grade electronic devices.

Crystals Feature Summary

• Fundamental AT-cut quartz crystal design for stable oscillation
• 4-pad surface mount package optimized for automated assembly
• Integrated shielding structure to minimize electromagnetic interference

Crystals Applications

• Bluetooth low energy (BLE) modules
• Short-range wireless communication devices
• Industrial control systems with moderate environmental requirements

Crystals Procurement Notes

Verify the specific suffix 'M' against the manufacturer's latest datasheet to confirm exact packaging and tape-and-reel specifications. Ensure the operating temperature range of -20°C to +70°C aligns with the target application environment, as industrial variants may offer extended ranges. Cross-reference the ESR value of 120 Ohms with the host circuit's drive level requirements to prevent over-driving or failure to start.

Crystals Selection Notes

Select this component when a compact 4-SMD footprint is required for 12 MHz clocking in space-constrained designs. The ±50 ppm tolerance suits general-purpose digital logic where tight frequency accuracy is not critical. Consider alternative models if the application demands wider temperature ranges or tighter frequency stability, such as ±10 ppm variants available in the same series.

Crystals Part Context

This part belongs to the SXT224 series of ceramic surface-mount crystals from Suntsu Electronics. The series utilizes a 4-pad design that provides improved grounding and shielding compared to traditional 2-pin packages. These components are engineered for high reliability in wireless and portable electronics, offering consistent performance across manufacturing batches.

Crystals Replacement Considerations

Direct substitutes include other 12 MHz crystals with identical 4-SMD dimensions and 9 pF load capacitance. Verify compatibility regarding ESR limits and drive level specifications before substitution. Generic replacements must match the fundamental mode operation to ensure circuit stability.