QT325G-32.000MAHV-T

Overview

The QT325G-32.000MAHV-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 32 MHz with a load capacitance of 8 pF and an equivalent series resistance (ESR) of 60 Ohms. The component features a 4-SMD, no-lead package with dimensions of 3.2 mm x 2.5 mm x 0.8 mm. Frequency stability is rated at ±30 ppm across the commercial temperature range of -40°C to +85°C, and ±30 ppm at 25°C. It supports fundamental mode operation and complies with RoHS3 standards.

Feature Summary

• Compact 4-SMD no-lead surface mount design suitable for space-constrained PCB layouts
• High frequency stability of ±30 ppm across wide commercial temperature ranges
• Low equivalent series resistance for efficient circuit integration
• RoHS3 compliant construction for environmental safety

Applications

• Clock generation for microcontrollers and digital logic circuits
• Communication module timing references
• Consumer electronics requiring precise frequency control
• Industrial control systems operating in commercial temperature environments

Procurement Notes

Verify the specific suffix HV against official QST documentation to confirm pin configuration and loading capacitance requirements. Ensure the selected variant matches the target PCB footprint and reflow soldering profile. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and compliance status before finalizing procurement plans.

Selection Notes

Select this component when a 32 MHz fundamental frequency is required with tight stability constraints. The 8 pF load capacitance must align with the oscillator circuit design. Consider the 60 Ohm ESR limit for drive level sensitivity. The 4-pin SMD package offers mechanical advantages over traditional 2-pin crystals in high-vibration environments.

Part Context

This part belongs to the QT325G series of quartz crystals from QST, characterized by small form factors and high reliability. The series includes various frequencies and tolerance levels tailored for modern electronic devices. The QT325G line emphasizes miniaturization while maintaining standard electrical performance metrics for widespread industrial and consumer use.

Replacement Considerations

Direct substitutes may include other 32 MHz crystals with identical 3.2x2.5mm 4-SMD packages and 8pF load capacitance. Verify that alternative parts match the ±30 ppm stability and 60 Ohm ESR specifications. Check compatibility with existing oscillator circuits regarding drive level and start-up time.