QTM325-48.000MBE-T

Overview

The QTM325-48.000MBE-T is a standard clock oscillator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 48 MHz with a CMOS output signal type. The device functions within an operating voltage range of 3.3 V DC and maintains a frequency stability of ±50 ppm across the specified temperature range. The component features a compact SMD package measuring 3.2 mm in length, 2.5 mm in width, and 1 mm in height. It is rated for operation between -40°C and +85°C, ensuring reliability in various electronic environments.

Feature Summary

• CMOS output signal generation for digital logic compatibility
• Compact 3.2x2.5mm surface-mount footprint for space-constrained designs
• Wide industrial temperature rating for robust environmental performance

Applications

• Standard clock timing for microprocessors and microcontrollers
• Data communication interface synchronization
• General-purpose digital circuit timing references

Procurement Notes

Verify the specific ordering suffix to ensure the correct package variant and tape/reel configuration match your assembly requirements. Confirm that the 3.3V supply voltage aligns with your system's power architecture before integration. Cross-reference the manufacturer part number with official distributor catalogs to validate authenticity and current availability status prior to purchase.

Selection Notes

Select this component when a precise 48 MHz reference is required for CMOS-compatible digital systems. Ensure the PCB layout accommodates the 3.2x2.5mm SMD dimensions and provides adequate thermal relief for the -40°C to 85°C operating range. Verify that the load conditions and trace impedance are compatible with standard CMOS oscillator outputs to maintain signal integrity.

Part Context

This oscillator belongs to the QTM325 series from QST, which offers various frequency options within a standardized small outline package. The series is engineered for high-volume consumer and industrial electronics where consistent timing accuracy and low profile are critical. It serves as a direct replacement for legacy through-hole crystals or larger oscillators in modern compact device architectures.

Replacement Considerations

Direct substitutes include other 48 MHz CMOS oscillators in the same 3.2x2.5mm package with matching 3.3V supply and ±50ppm stability. Verify pinout compatibility and output drive strength when considering alternative manufacturers. Ensure the replacement part meets the same industrial temperature specifications for seamless integration.