SXT22418AA48-12.000M

Crystals Overview

The SXT22418AA48-12.000M is a 12 MHz AT-cut fundamental frequency crystal oscillator manufactured by Suntsu Electronics, Inc. It utilizes a 4-pad surface-mount package with no leads, designed for industrial applications. The component features a load capacitance of 18 pF and an equivalent series resistance (ESR) of 120 Ohms. Frequency stability is rated at ±50 ppm over the operating temperature range of 0°C to +70°C. This configuration supports reliable operation in compact electronic designs requiring precise timing.

Crystals Feature Summary

• Four-terminal surface-mount design provides enhanced grounding and electromagnetic interference shielding compared to two-pin alternatives.
• AT-cut fundamental resonance architecture ensures stable oscillation without the need for additional matching inductors.
• Industrial-grade thermal performance maintains frequency stability within specified limits across defined operating temperatures.

Crystals Applications

• Bluetooth low energy (BLE) communication modules
• Short-range wireless device synchronization
• PCMCIA interface circuits
• Industrial control systems with high-density board layouts

Crystals Procurement Notes

Verify that the specific order matches the exact part number SXT22418AA48-12.000M, as suffixes indicate critical variations in tolerance and temperature range. Confirm the supplier provides official datasheets from Suntsu Electronics, Inc. to ensure compliance with the 120 Ohm ESR and 18 pF load capacitance specifications required for circuit compatibility.

Crystals Selection Notes

Select this component when a 2.5mm x 2.0mm footprint is constrained but superior EMI performance is required over standard two-pin crystals. The 120 Ohm ESR suits circuits with moderate drive levels, while the 18 pF load capacitance aligns with common microcontroller oscillator inputs. Ensure the application operates within the 0°C to +70°C range to maintain the ±50 ppm accuracy.

Crystals Part Context

This model belongs to the SXT224 series, which offers various frequency and tolerance options within the same 4-pad ceramic package. Variants differ in frequency stability (e.g., ±10 ppm vs ±50 ppm) and temperature ranges. The AA48 suffix specifically denotes the ±50 ppm tolerance and 0°C to +70°C operational window, distinguishing it from higher-performance industrial or automotive grades.

Crystals Replacement Considerations

Direct substitutes include other SXT224 series variants with identical pinout but different tolerances, such as SXT22418FD48-12.000M for tighter ±10 ppm stability. Cross-brand replacements require verifying the 4-pad layout, 120 Ohm ESR, and 18 pF load capacitance to ensure electrical equivalence in the existing circuit design.