QT325G-50.000MAHE-T

Overview

The QT325G-50.000MAHE-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 50 MHz with a frequency tolerance of ±30 ppm at 25°C. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 60 Ohms. It utilizes a 4-SMD, No Lead package configuration with body dimensions of 3.2 x 2.5 mm. The device is rated for an operating temperature range of -40°C to +85°C and complies with RoHS standards.

Feature Summary

• Surface-mount quartz crystal resonator optimized for compact electronic designs
• High frequency stability within ±30 ppm tolerance across the operating temperature range
• Low profile 4-SMD no-lead package suitable for automated assembly processes

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits

Procurement Notes

Verify the specific ordering suffix against official QST documentation to ensure correct frequency and tolerance specifications. Confirm that the MAHE variant matches the required ESR and load capacitance parameters for the target circuit design. Cross-reference the package dimensions and pin configuration with the PCB footprint to guarantee mechanical compatibility during assembly.

Selection Notes

Select this component when a 50 MHz surface-mount crystal with ±30 ppm stability is required. Ensure the application circuit supports a 12 pF load capacitance and can drive the specified 60 Ohm ESR. Verify that the operating environment remains within the -40°C to +85°C range to maintain frequency accuracy. Consider the 4-SMD form factor for space-constrained board layouts.

Part Context

This part belongs to the QT325G series of quartz crystals from QST, which are characterized by their small 3.2x2.5 mm footprint. The series provides various frequency options for general-purpose timing applications. The MAHE suffix typically denotes specific electrical characteristics including load capacitance and ESR values defined by the manufacturer's standard product line.

Replacement Considerations

Direct substitutes must match the 50 MHz frequency, 12 pF load capacitance, 60 Ohm ESR, and 4-SMD package dimensions. Verify that alternative components offer comparable frequency stability of ±30 ppm and similar thermal performance ranges.