9C-4.9152MBBK-T

Crystals Overview

The TXC CORPORATION 9C-4.9152MBBK-T is a surface-mount quartz crystal resonator operating at a fundamental frequency of 4.9152 MHz. It features a load capacitance of 20 pF and a frequency tolerance/stability of ±50 ppm. The component utilizes an HC-49/US package with dimensions of 11.40mm x 4.80mm x 4.10mm maximum height. It has an equivalent series resistance (ESR) of 150 Ohms and operates within a temperature range of -20°C to +70°C. The device is RoHS3 compliant and classified as MSL Level 1.

Crystals Feature Summary

• Fundamental mode operation for precise timing applications
• Surface mount design compatible with automated assembly processes
• HC-49/US package format ensuring mechanical stability

Crystals Applications

• Microcontroller clock sources
• Communication interface timing circuits
• General-purpose digital logic synchronization

Crystals Procurement Notes

This component is officially listed as obsolete by the manufacturer. Production has ceased, and no new stock will be manufactured once existing inventory is depleted. Procurement should focus on verifying the authenticity of remaining surplus stock from authorized distributors. Buyers must confirm the specific manufacturing date code and storage conditions due to the end-of-life status. Replacement planning is strongly recommended to mitigate supply chain risks associated with discontinued components.

Crystals Selection Notes

Engineers selecting this part should verify compatibility with circuit designs requiring a 4.9152 MHz fundamental frequency and 20pF load capacitance. The 150 Ohm ESR value must be considered in oscillator circuit design to ensure reliable startup. Due to the obsolete lifecycle status, alternative sourcing strategies or redesigns using current-generation equivalents are advisable for new production runs. Ensure the HC-49/US footprint matches the PCB layout requirements.

Crystals Part Context

The 9C series represents TXC Corporation's line of ultra-miniature, thin, and low series resistance MHz crystals. These components are designed for high accuracy and low phase noise applications. The 9C-4.9152MBBK-T specifically falls within this family, offering a balance of performance and compact size suitable for space-constrained electronic devices. The series is known for meeting strict industry standards for frequency stability and aging.

Crystals Replacement Considerations

Publicly confirmed substitute: QT49S-24.000MBBK-T (QST). Note: This substitute differs in frequency (24 MHz vs 4.9152 MHz) and may require circuit redesign. No other direct pin-to-pin replacements with identical electrical parameters were found in public databases.