9C04900029

Crystals Overview

The TXC Corporation 9C04900029 is a surface mount quartz crystal unit housed in the standard HC-49/S package. It operates at a fundamental frequency of 4.9152 MHz with a load capacitance of 20 pF. The component provides a frequency tolerance of ±30 ppm at 25°C and maintains stability within ±30 ppm over the operating temperature range of -20°C to +70°C. It features a maximum equivalent series resistance (ESR) of 150 Ω, supporting drive levels from 1 to 500 μW. The unit complies with RoHS standards and offers an aging rate of ±3 ppm per year.

Crystals Feature Summary

• Standard SMD HC-49/S footprint for direct PCB compatibility
• Low ESR design ensuring reliable oscillation startup
• RoHS compliant lead-free construction

Crystals Applications

• PC motherboards and peripheral interfaces
• Set-top boxes and digital TV receivers
• Display modules and monitor controllers
• Cable modems and broadband communication devices

Crystals Procurement Notes

Verify the specific suffix codes against the official datasheet to confirm exact frequency tolerance, temperature stability, and load capacitance requirements. Ensure the selected variant matches the circuit's designed load capacitance to prevent frequency drift. Confirm RoHS compliance status if environmental regulations are mandatory for the target market.

Crystals Selection Notes

Select this component when a standard HC-49/S form factor is required for space-constrained designs. It is suitable for applications needing moderate accuracy where ±30 ppm tolerance is acceptable. Consider the 150 Ω ESR limit for oscillator circuit matching. This part is ideal for consumer electronics where cost-effectiveness and supply chain stability are prioritized over ultra-high precision.

Crystals Part Context

This model belongs to the TXC 9C series, which focuses on high-volume consumer electronics manufacturing. The series is characterized by its standardized packaging and broad availability of common frequencies. It serves as a reliable clock source for microcontrollers and logic circuits in mass-produced devices, balancing performance with manufacturing efficiency.

Crystals Replacement Considerations

Direct replacements must match the HC-49/S package dimensions and 20 pF load capacitance. Verify that substitute parts support the 4.9152 MHz fundamental frequency and have comparable ESR limits. Cross-reference manufacturer-specific suffixes to ensure identical electrical characteristics and environmental ratings.