QTM325-13.500MBE-T

Overview

The QTM325-13.500MBE-T is a surface-mount quartz oscillator manufactured by QST. It operates at a nominal frequency of 13.5 MHz with a stability of ±50 ppm. The device utilizes a 3.2mm x 2.5mm SMD package and requires a 3.3V DC supply voltage. It supports fundamental mode operation and features an equivalent series resistance (ESR) of 100 ohms. The component is designed for a wide operating temperature range from -40°C to +85°C, ensuring reliable performance in various electronic applications.

Feature Summary

• Provides stable clock signals with ±50 ppm frequency stability
• Compact 3.2mm x 2.5mm surface-mount footprint
• Operates on a standard 3.3V DC power supply
• Wide temperature range capability from -40°C to +85°C

Applications

• Embedded system clock generation
• Microcontroller timing sources
• Communication interface synchronization
• Consumer electronics timing circuits

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 3.3V supply voltage aligns with your system's power rails. Confirm that the ±50 ppm stability meets your application's timing accuracy needs. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure proper assembly and long-term reliability.

Selection Notes

Select this component when a compact, low-power oscillator is required for 13.5 MHz applications. Consider the ±50 ppm stability as sufficient for general-purpose timing but potentially insufficient for high-precision communication protocols requiring tighter tolerances. Evaluate the 3.2x2.5mm package size against available PCB space constraints. Ensure the 3.3V operating voltage matches your system architecture to avoid level shifting or power management issues.

Part Context

This part belongs to the QST QTM325 series of surface-mount quartz oscillators. The series offers various frequencies within the same compact form factor, allowing for design flexibility across different product lines. These oscillators are designed to replace discrete crystal and buffer configurations, simplifying PCB layout and reducing component count in modern electronic designs.

Replacement Considerations

Direct substitutes include other QTM325 series variants with compatible frequencies and pinouts, such as QTM325-16.000MBE-T or QTM325-20.000MBE-T, if frequency adjustment is permissible. Cross-brand replacements must match the 3.2x2.5mm package, 3.3V supply, and ±50 ppm stability specifications to ensure functional compatibility without redesign.