SXT22421BB07-37.400M

Crystals Overview

The SXT22421BB07-37.400M is a 37.4 MHz surface-mount crystal oscillator from Suntsu Electronics, Inc., housed in a compact 4-SMD, No Lead package measuring 2.50mm x 2.00mm. It features a load capacitance of 21pF and a frequency stability of ±30ppm. The equivalent series resistance (ESR) is specified at 60 Ohms. Designed for industrial applications, this component supports high-density circuit layouts while maintaining reliable timing performance for wireless communication systems.

Crystals Feature Summary

• Four-pad ceramic SMD design provides enhanced grounding and electromagnetic interference shielding compared to two-pin variants.
• AT-cut fundamental resonance architecture simplifies oscillation circuit requirements by eliminating the need for additional matching inductors.
• Industrial-grade temperature range ensures stable frequency deviation within specified limits across wide thermal conditions.

Crystals Applications

• Bluetooth low energy (BLE) modules
• Zigbee short-range wireless devices
• PCMCIA interfaces and modems
• High-density industrial control boards

Crystals Procurement Notes

Verify the specific load capacitance and ESR values against the target circuit design before procurement. Confirm that the ±30ppm frequency stability meets the system's synchronization requirements. Ensure the 4-SMD footprint matches the PCB land pattern precisely to avoid assembly defects. Cross-reference the manufacturing date code with project timelines to ensure component availability and consistency.

Crystals Selection Notes

Select this model when space constraints require a 2.5x2.0mm footprint but electromagnetic compatibility demands superior shielding. Choose this variant over standard two-pin crystals if reducing radiated emissions is critical for Bluetooth or Zigbee applications. Consider the AT-cut design benefits for simpler circuit topology and lower power consumption in battery-operated wearable or IoT devices requiring long-term frequency stability.

Crystals Part Context

This component belongs to the SXT224 series of industrial-grade ceramic surface-mount crystals. The series is characterized by its small form factor and four-terminal configuration, which distinguishes it from traditional two-lead packages. It targets applications requiring robust performance in electrically noisy environments where size reduction and signal integrity are equally important priorities.

Crystals Replacement Considerations

Direct substitutes must match the 37.4 MHz frequency, 21pF load capacitance, and 4-SMD no-lead package dimensions. Verify that alternative components offer comparable ESR values and frequency stability ratings to maintain system timing accuracy without redesigning the oscillator circuit.