QT325S-26.000MAGE-T

Overview

The QT325S-26.000MAGE-T is a surface-mount quartz crystal oscillator manufactured by QST, designed for precise frequency generation in electronic circuits. It operates at a nominal frequency of 26 MHz with a standard load capacitance of 12 pF. The component exhibits a frequency stability of ±30 ppm at 25°C and ±50 ppm across the operating temperature range. It features an equivalent series resistance (ESR) of 50 Ohms and is housed in a compact 4-SMD, no lead package measuring 3.20mm x 2.50mm. The device supports a wide operating temperature range from -40°C to +85°C, ensuring reliable performance in various environmental conditions.

Feature Summary

• Compact 3.2x2.5mm SMD footprint suitable for space-constrained designs
• High frequency stability of ±30 ppm at room temperature
• Wide operating temperature range from -40°C to +85°C
• Lead-free and RoHS compliant construction

Applications

• Clock generation for microprocessors and microcontrollers
• Timing reference for communication interfaces such as UART and SPI
• Frequency synthesis in wireless modules
• Real-time clock circuits requiring stable timekeeping

Procurement Notes

Verify the complete part number including suffixes to ensure correct frequency tolerance and temperature range specifications. Confirm package dimensions and soldering compatibility with your PCB design. Check manufacturer documentation for recommended reflow soldering profiles to prevent thermal damage. Ensure supply chain authenticity through authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a 26 MHz timing source is required with moderate stability needs. Consider the 12pF load capacitance requirement for circuit matching. Evaluate the ±30 ppm stability against system jitter requirements. Compare ESR values with oscillator input impedance specifications. Assess thermal performance within the specified -40°C to +85°C range for your application environment.

Part Context

This crystal belongs to QST's QT325S series of surface-mount quartz crystals. The series offers various frequency options in a standardized small outline package. These components are commonly used in consumer electronics, industrial controls, and telecommunications equipment where reliable timing signals are essential for proper system operation.

Replacement Considerations

Direct substitutes include other 26MHz crystals with identical 3.2x2.5mm packages and 12pF load capacitance. Verify equivalent frequency stability and ESR specifications before substitution. Cross-reference with TXC Corporation equivalents if available. Ensure pinout compatibility and mechanical fit for existing PCB layouts.