SXT1149BA38-40.000M

Crystals Overview

The SXT1149BA38-40.000M is a 40.000 MHz fundamental mode crystal resonator manufactured by Suntsu Electronics, Inc. It operates within a frequency tolerance of ±30ppm and features a load capacitance of 9pF. The component exhibits an equivalent series resistance (ESR) of 100 Ohms maximum. It is housed in a compact 4-SMD, No Lead package with dimensions of 1.60mm x 1.20mm. The device is designed for surface-mount applications and supports an operating temperature range of -20℃ to +70℃.

Crystals Feature Summary

• Fundamental mode crystal resonator design
• Compact 4-SMD no lead surface mount package
• Stable frequency performance within specified tolerance

Crystals Applications

• General purpose clock signal generation
• Microcontroller oscillator circuits
• Communication module timing references

Crystals Procurement Notes

Verify the specific suffix codes against official Suntsu Electronics documentation to confirm exact electrical parameters and packaging details. Ensure compatibility with reflow soldering profiles defined in the manufacturer datasheet. Cross-reference part numbers carefully as minor variations may exist between distributors.

Crystals Selection Notes

Select this component when a 40 MHz reference with ±30ppm stability is required for space-constrained designs. The 4-SMD form factor facilitates automated assembly. Confirm that the 9pF load capacitance matches the oscillator circuit requirements and that the 100 Ohm ESR limit aligns with drive level specifications.

Crystals Part Context

This part belongs to the SXT1149 series of surface-mount crystals from Suntsu Electronics. The series offers various frequency options in a standardized small outline package. The BA38 suffix typically denotes specific pin configuration or casing material variants within the product line.

Crystals Replacement Considerations

Direct substitutes include other 40 MHz crystals in 4-SMD packages with matching 9pF load capacitance and similar ESR limits. Verify thermal characteristics and frequency stability requirements before swapping manufacturers.