SXT1149AA17-38.400M

Crystals Overview

The SXT1149AA17-38.400M is a surface-mount crystal oscillator manufactured by Suntsu Electronics, Inc. It operates at a nominal frequency of 38.4 MHz with a frequency tolerance of ±50 ppm. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 100 Ohms. It utilizes a 4-SMD, No Lead package with dimensions of 1.6 x 1.2 mm. The device supports a temperature range of -10°C to +60°C and employs AT-cut fundamental mode operation for stable performance.

Crystals Feature Summary

• Compact 1.6x1.2mm four-pad surface mount design
• AT-cut fundamental resonance for reliable startup
• Low equivalent series resistance for easier matching

Crystals Applications

• Bluetooth module clock sources
• Wi-Fi interface timing
• Industrial wireless communication devices

Crystals Procurement Notes

Verify the specific ESR value against the official datasheet, as values may vary between 100 and 150 Ohms depending on the exact manufacturing batch or revision. Confirm the operating temperature range matches the application requirements, as the AA17 suffix indicates a specific thermal window. Ensure the PCB footprint aligns with the 4-SMD no-lead package specifications to prevent soldering defects during assembly.

Crystals Selection Notes

Select this component when a small form factor is required for high-density layouts. The 9pF load capacitance suits circuits designed for standard low-capacitance loads. Consider the ±50ppm tolerance if strict frequency accuracy is not critical. Evaluate the 100 Ohm ESR against the oscillator circuit's drive level capabilities to ensure stability without over-driving the crystal.

Crystals Part Context

This part belongs to the SXT114 series of ultra-small crystals from Suntsu Electronics. The series is characterized by its 1.6x1.2mm footprint, which is smaller than standard 0402 components. The model number encodes the frequency, tolerance, temperature range, and package type, allowing for precise identification within the product line.

Crystals Replacement Considerations

Direct substitutes include other 1.6x1.2mm 4-pad crystals with similar electrical parameters. Verify that any replacement maintains the 9pF load capacitance and comparable ESR to avoid retuning the oscillator circuit. Check compatibility with the specific temperature range requirements of the target application.