SXT2249AA07-24.576M

Crystals Overview

The SXT2249AA07-24.576M is a 24.576 MHz AT-cut fundamental frequency crystal oscillator manufactured by Suntsu Electronics, Inc. It features a 4-SMD, no-lead package with dimensions of 2.50mm x 2.00mm. The device operates within a temperature range of -10°C to +70°C and maintains a frequency tolerance of ±50ppm across the operating range. Key electrical parameters include a load capacitance of 9pF, an equivalent series resistance (ESR) of 80 Ohms, and a maximum drive level of 100μW. The component utilizes a ceramic surface-mount design suitable for compact electronic applications.

Crystals Feature Summary

• Four-pad ceramic surface-mount design provides grounding pins for improved electromagnetic interference shielding compared to two-pin variants.
• AT-cut fundamental resonance technology ensures stable oscillation without requiring additional matching inductors.
• Compact 2520 footprint allows for high-density board layout in space-constrained wireless devices.

Crystals Applications

• Bluetooth Low Energy (BLE) communication modules
• Short-range wireless positioning tags
• PCMCIA cards and modem interfaces

Crystals Procurement Notes

Verify the specific suffix 'AA07' against the manufacturer's latest datasheet to confirm the exact temperature range and tolerance specifications, as suffixes define critical operational limits. Ensure the ordering part number matches the required load capacitance and ESR values for the target circuit design. Cross-reference the package outline drawing to confirm compatibility with automated pick-and-place equipment and soldering profiles.

Crystals Selection Notes

Select this component when a 2.5x2.0mm footprint is mandatory and moderate frequency stability is acceptable. The 80 Ohm ESR requires compatible oscillator circuits capable of driving higher resistance loads. Consider alternative models with lower ESR if the host circuit has limited drive capability or if stricter temperature stability beyond the commercial grade is required for industrial environments.

Crystals Part Context

This model belongs to the SXT224 series of industrial-grade ceramic crystals from Suntsu Electronics. The series is characterized by small form factors and four-terminal designs intended to mitigate noise in RF-sensitive applications. Variants within the series differ primarily in frequency, tolerance, and temperature range, sharing the same physical package and general structural attributes.

Crystals Replacement Considerations

Direct substitutes must match the 24.576MHz frequency, 9pF load capacitance, and 4-SMD no-lead package. Verify that replacement parts support the same 80 Ohm ESR limit and operate within the -10°C to +70°C range to ensure functional equivalence in existing designs.