9C-24.000MBBK-T

Crystals Overview

The 9C-24.000MBBK-T is a surface-mount quartz crystal manufactured by TXC Corporation, operating at a fundamental frequency of 24 MHz. It features a ±50 ppm frequency tolerance and stability, with a load capacitance of 20 pF and an equivalent series resistance (ESR) of 30 Ohms. The component utilizes the HC-49/US package style, measuring 11.40 mm in length, 4.80 mm in width, and up to 4.10 mm in height. It supports a base harmonic operating mode and functions within a temperature range of -20°C to +70°C. The device is RoHS3 compliant and classified under EAR99.

Crystals Feature Summary

• Fundamental mode quartz crystal operation
• HC-49/US surface-mount package configuration
• ±50 ppm frequency stability specification
• RoHS3 environmental compliance

Crystals Applications

• General-purpose digital clock signal generation
• Microcontroller system timing references
• Embedded communication interface synchronization

Crystals Procurement Notes

This component is officially designated as obsolete by the manufacturer. Inventory availability is strictly limited to existing stock; replenishment will not occur once current supplies are exhausted. Verification of part authenticity and physical condition is essential prior to acquisition due to the end-of-life status. Procurement should focus on securing remaining units from authorized channels or verified distributors.

Crystals Selection Notes

Engineers must evaluate the ±50 ppm stability against system timing requirements, as this tolerance is wider than precision oscillators. The HC-49/US form factor requires specific board space allocation compared to smaller SMD crystals. Designers should confirm that the 20 pF load capacitance matches the circuit's oscillator input specifications to ensure accurate frequency performance.

Crystals Part Context

The 9C series represents TXC Corporation's standard line of fundamental mode quartz crystals. This model belongs to the HC-49/US family, known for robust mechanical construction and widespread industry adoption. It serves as a cost-effective timing solution for applications where extreme miniaturization is not required but reliable fundamental frequency generation is necessary.

Crystals Replacement Considerations

QT49S-24.000MBBK-T by QST is documented as a parameter-equivalent substitute.