QT325G-30.000MAHJ-T

Overview

The QT325G-30.000MAHJ-T is a 30 MHz fundamental mode quartz crystal manufactured by QST. It features a 4-SMD, No Lead package with dimensions of 3.2mm x 2.5mm x 0.8mm. The component operates within a temperature range of -40°C to +85°C and maintains a frequency stability of ±30ppm across this range. It utilizes a load capacitance of 18pF and exhibits an equivalent series resistance (ESR) of 60 Ohms.

Feature Summary

• Utilizes glass seal technology for enhanced environmental durability
• Supports surface mount installation via a 4-SMD no lead footprint
• Maintains stable oscillation performance across extended industrial temperature ranges

Applications

• Industrial control systems requiring precise timing
• Communication equipment utilizing standard clock frequencies
• Consumer electronics demanding compact form factors
• Microcontroller clock sources in harsh environments

Procurement Notes

Verify the specific suffix configuration against the manufacturer's official datasheet to ensure compatibility with required load capacitance and temperature specifications. Confirm that the 4-SMD no lead package aligns with the target PCB layout constraints. Cross-reference the ESR value of 60 Ohms with circuit design requirements to guarantee proper oscillator startup conditions.

Selection Notes

Select this component when a 30 MHz frequency is required within a 3.2x2.5mm SMD footprint. Ensure the application environment falls within the -40°C to +85°C operating range. Verify that the circuit design accommodates the 18pF load capacitance and 60 Ohm ESR characteristics for reliable operation.

Part Context

This part belongs to the QT325G series of surface mount crystals from QST. The series is characterized by small footprints suitable for space-constrained designs. The specific model denotes a 30 MHz frequency variant with high stability and robust packaging technology.

Replacement Considerations

Direct substitutes include parts from the same family with identical electrical parameters. Verify pinout compatibility and thermal characteristics before substitution.