FA-238 31.2500MB30V-W0

Crystals Overview

The FA-238 31.2500MB30V-W0 is a surface-mount crystal unit manufactured by EPSON, designed for precise timing applications. It operates at a fundamental frequency of 31.25 MHz with a standard load capacitance of 12 pF and an equivalent series resistance (ESR) of 40 Ohms. The component features a compact 4-SMD package with dimensions of 3.20mm x 2.50mm x 0.70mm. It supports a frequency tolerance of ±50 ppm and functions within an operating temperature range of -20°C to +70°C.

Crystals Feature Summary

• Fundamental overtone operation mode for stable frequency generation
• Compact surface-mount design suitable for space-constrained PCB layouts
• Standardized load capacitance configuration for easy circuit integration

Crystals Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing reference for communication interfaces such as UART and SPI
• Frequency source for digital logic circuits and embedded systems

Crystals Procurement Notes

Verify the specific suffix 'W0' against official EPSON documentation to confirm exact tolerance and temperature specifications. Ensure compatibility with reflow soldering profiles recommended for SMD crystals. Cross-reference the 12 pF load capacitance requirement with the target circuit design to maintain frequency accuracy. Confirm availability through authorized distributors to avoid counterfeit components.

Crystals Selection Notes

Select this component when a fundamental mode crystal is required for 31.25 MHz applications. Consider the ±50 ppm tolerance if higher precision is not critical. Evaluate the 40 Ohm ESR against the oscillator circuit's drive level requirements. Ensure the -20°C to +70°C temperature range meets the environmental constraints of the final product application.

Crystals Part Context

The FA-238 series represents EPSON's line of high-reliability surface-mount crystals. This specific model belongs to the standard tolerance family, offering a balance between performance and cost. It is widely used in consumer electronics and industrial equipment where moderate frequency stability is sufficient. The series is known for consistent manufacturing quality and long-term reliability.

Crystals Replacement Considerations

Direct substitutes must match the 31.25 MHz frequency, 12 pF load capacitance, and 4-SMD 3.2x2.5mm package. Verify that alternative components support fundamental mode operation and similar ESR values. Check if the replacement offers compatible temperature ranges and frequency tolerances for the specific application environment.