QT325S-16.66667MAHE-T

Overview

The QT325S-16.66667MAHE-T is a surface-mount quartz crystal resonator manufactured by QST Corporation, designed for precision timing applications in compact electronic systems. It operates at a fundamental frequency of 16.66667 MHz with a load capacitance of 12 pF. The component exhibits high frequency stability, maintaining tolerance within ±30 ppm at 25°C and ±30 ppm across the industrial temperature range of -40°C to +85°C. Housed in a standard 3.2 x 2.5 mm SMD package, it ensures reliable performance in space-constrained designs requiring stable clock signals.

Feature Summary

• High frequency stability with tight tolerance specifications across industrial temperature ranges
• Compact surface-mount design suitable for automated assembly processes
• Optimized load capacitance for direct integration with standard microcontroller interfaces

Applications

• Microcontroller clock sources
• Communication module timing references
• Portable electronic device oscillators

Procurement Notes

Verify manufacturer authenticity through authorized distributors. Confirm package dimensions and pin configuration match PCB footprint requirements. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet. Validate frequency accuracy against system timing budgets before procurement.

Selection Notes

Select this component when precise 16.66667 MHz timing is required in small form factor designs. Consider thermal stability requirements and load capacitance compatibility with target oscillator circuits. Evaluate mechanical constraints against the 3.2x2.5mm package size for optimal board layout integration.

Part Context

This crystal belongs to QST's QT325S series of surface-mount resonators, widely used in consumer electronics and industrial control systems. The series offers various frequency options within standardized packages, providing designers with flexible timing solutions while maintaining consistent quality standards across product lines.

Replacement Considerations

Compatible substitutes include other 16.66667 MHz crystals from manufacturers like TXC or ECS, provided they match the 12pF load capacitance and ±30ppm stability requirements. Verify equivalent package dimensions and electrical characteristics before substitution.