SXT32421CA27-29.4912M

Crystals Overview

The SXT32421CA27-29.4912M is a ceramic surface-mount crystal resonator from Suntsu Electronics, designed for high-density circuit applications. It operates at a fundamental frequency of 29.4912 MHz with a frequency tolerance of ±25 ppm. The component features a load capacitance of 21 pF and an equivalent series resistance (ESR) of 50 Ohms. It utilizes a 4-pad SMD package without leads, measuring 3.2mm x 2.5mm. The device supports the -40°C to +85°C industrial temperature range, ensuring stable performance in demanding electronic environments.

Crystals Feature Summary

• Utilizes a 4-pad ceramic surface-mount package for enhanced grounding and anti-interference capabilities compared to standard 2-pad designs.
• Engineered for high-frequency stability within the industrial temperature range using AT-cut fundamental resonance technology.
• Supports automated SMT assembly processes through its standardized no-lead surface-mount configuration.

Crystals Applications

• High-density industrial control boards
• Wireless communication modules
• Bluetooth and WiFi transceivers

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact electrical parameters. Ensure the selected variant matches the required load capacitance and frequency tolerance for the target application. Confirm that the 4-pad package dimensions align with the PCB footprint design. Cross-reference the part number with the latest revision history to ensure compatibility with current manufacturing standards.

Crystals Selection Notes

Select this component when a compact 3225 footprint is required alongside improved noise immunity provided by the 4-pad ground structure. Consider the 21 pF load capacitance requirement for oscillator circuit design. Evaluate the ±25 ppm tolerance against system timing requirements. Verify the -40°C to +85°C operating range meets the environmental conditions of the final product deployment.

Crystals Part Context

This part belongs to the SXT324 series, which comprises industrial-grade ceramic crystals in a 3225 4-pad format. The series offers various load capacitances and temperature ranges, allowing designers to balance size, cost, and performance. The SXT32421CA27 specifically targets applications needing reliable timing in space-constrained industrial electronics.

Crystals Replacement Considerations

Direct substitutes must match the 3225 4-pad form factor, 29.4912 MHz frequency, 21 pF load capacitance, and ±25 ppm tolerance. Verify pinout compatibility and ESR specifications before integration. Alternative parts from other manufacturers may require schematic adjustments if load capacitance differs significantly.