QT49S-15.360MBBK-T

Overview

The QT49S-15.360MBBK-T is a surface-mount crystal oscillator manufactured by QST, operating at a nominal frequency of 15.36 MHz. It features a frequency stability of ±50 ppm and an external load capacitance of 20 pF. The component utilizes an HC-49/US style SMD package with dimensions of 12.7 mm x 4.8 mm. It exhibits a series resistance of 30 Ohms and is designed for applications requiring precise timing signals within the digital electronics sector.

Feature Summary

• Resistance-welded metal can construction for enhanced durability
• Surface-mount design compatible with automated assembly processes
• Wide frequency range capability from 3.2 MHz to 90 MHz

Applications

• Digital circuit timing references
• Microcontroller clock sources
• Communication equipment oscillators

Procurement Notes

Verify the specific suffix BBT or BBK against the manufacturer's official datasheet to confirm exact tolerance and packaging specifications. Ensure the selected variant matches the required load capacitance and frequency stability for the target application. Cross-reference the RoHS compliance status if environmental regulations are a constraint for the final product assembly.

Selection Notes

Select this component when a 15.36 MHz frequency is required with ±50 ppm stability in a compact surface-mount form factor. The HC-49/US SMD package offers a balance between performance and board space efficiency. Consider the 20 pF load capacitance requirement to ensure proper oscillator circuit tuning and frequency accuracy in the final design.

Part Context

This part belongs to the QT49S series of crystals, which are characterized by their resistance-welded metal cans and surface-mount configurations. The series supports frequencies from 3.2 MHz to 90 MHz, providing versatile options for various digital applications. The specific model QT49S-15.360MBBK-T represents a standard 15.36 MHz variant within this family.

Replacement Considerations

Compatible substitutes include other manufacturers' 15.36 MHz SMD crystals with matching 20 pF load capacitance and similar dimensional constraints. Verify that alternative parts maintain the ±50 ppm stability and 30 Ohm maximum series resistance to ensure circuit compatibility without redesigning the oscillator network.