SXT21419AA38-40.000M

Crystals Overview

The SXT21419AA38-40.000M is a surface-mount crystal oscillator manufactured by Suntsu Electronics, Inc. It operates at a fundamental frequency of 40.000 MHz with a frequency tolerance of ±50 ppm. The component features a load capacitance of 19 pF and an equivalent series resistance (ESR) of 100 Ohms. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The device supports an operating temperature range of -30°C to +85°C and complies with RoHS standards for environmental safety.

Crystals Feature Summary

• Surface-mount design for automated assembly
• Wide industrial temperature stability
• RoHS compliant construction

Crystals Applications

• Microcontroller clock sources
• Communication module timing
• Embedded system oscillators

Crystals Procurement Notes

Verify the specific suffix 'AA38' against the manufacturer's latest datasheet to confirm pinout and mechanical tolerances. Ensure the selected variant matches the required load capacitance of 19pF for circuit compatibility. Confirm RoHS compliance status if restricted substances are a project constraint. Cross-reference the ESR value of 100 Ohms with the oscillator circuit design requirements.

Crystals Selection Notes

Select this component when a 40 MHz reference signal is required in space-constrained designs. The 2.0mm x 1.6mm footprint suits high-density PCB layouts. Consider the ±50 ppm stability for applications not requiring ultra-high precision. The 100 Ohm ESR must align with the driving circuit's capability to sustain oscillation without excessive power consumption.

Crystals Part Context

This part belongs to Suntsu's SXT series of surface-mount crystals. The series offers various frequencies and packages. The AA38 suffix typically denotes specific dimensional and mounting characteristics within the product line. These components are designed for general-purpose timing applications in consumer and industrial electronics.

Crystals Replacement Considerations

The SXT21419DA38-40.000M is a related variant with potentially different stability or ESR specifications. Verify electrical parameters before substitution. Other manufacturers offer 40 MHz crystals in similar SMD packages, but load capacitance and ESR must match exactly.