H130B-18.432-18-EXT-TR

Crystals Overview

The H130B-18.432-18-EXT-TR is a surface-mount crystal oscillator manufactured by Raltron Electronics, operating at a nominal frequency of 18.432 MHz in fundamental mode. It features an 18 pF load capacitance and provides ±50 ppm frequency stability across the specified temperature range. The device supports a wide operating temperature range from -40°C to +85°C, ensuring reliable performance in industrial environments. Packaged in a compact 4-SMD, No Lead format, it is designed for precision timing applications requiring stable clock signals.

Crystals Feature Summary

• Fundamental mode operation ensures clean signal output without harmonic interference
• Industrial-grade temperature range supports reliable performance in harsh environments
• Compact surface-mount package facilitates automated SMT assembly processes

Crystals Applications

• Microprocessor clock generation
• Ethernet PHY reference timing
• UART serial communication interfaces

Crystals Procurement Notes

Verify the specific suffix EXT against the manufacturer's current datasheet to confirm package dimensions and marking details. Ensure compatibility with standard lead-free reflow soldering profiles. Confirm RoHS compliance status for regulatory requirements in target markets. Cross-reference the load capacitance value with circuit design specifications to maintain frequency accuracy.

Crystals Selection Notes

Select this component for applications requiring a stable 18.432 MHz reference clock within industrial temperature limits. Consider the ±50 ppm total frequency tolerance when designing for high-precision baud rate synchronization. Evaluate the 18 pF load capacitance requirement against PCB trace parasitics to ensure accurate oscillation. Verify that the fundamental mode operation aligns with the host controller's oscillator input specifications.

Crystals Part Context

This part belongs to the H130B series of surface-mount crystals from Raltron Electronics. The series is engineered for general-purpose timing applications, offering a balance of performance and reliability. The 18.432 MHz frequency is commonly utilized in digital systems for generating precise baud rates for serial communication protocols.

Crystals Replacement Considerations

Direct substitutes must match the 18.432 MHz frequency, 18 pF load capacitance, and 4-SMD package. Verify equivalent frequency stability and temperature range specifications before substitution.