QT325G-10.000MAHV-T

Overview

The QST QT325G-10.000MAHV-T is a surface-mount quartz crystal resonator operating at a fundamental frequency of 10 MHz. It features a frequency stability and tolerance of ±30 ppm at 25°C, with an equivalent series resistance (ESR) of 150 Ohms. The component utilizes a load capacitance of 8 pF and is housed in a compact 4-SMD, No Lead package measuring 3.20mm x 2.50mm.

Feature Summary

• Compact 3.2x2.5mm SMD footprint for space-constrained designs
• High frequency stability of ±30 ppm
• Low ESR of 150 Ohms for efficient circuit operation

Applications

• IoT device clock sources
• Compact consumer electronics timing circuits
• Microcontroller system oscillators

Procurement Notes

Verify the specific load capacitance requirement against your circuit design, as datasheets may list variations (e.g., 8pF vs 18pF) across similar part numbers. Confirm the ESR value matches your oscillator's drive level specifications to ensure reliable startup and long-term stability. Always request the official manufacturer datasheet for the exact electrical parameters before finalizing procurement.

Selection Notes

Select this component when a small form factor is critical alongside moderate frequency stability requirements. The 150 Ohm ESR suits standard CMOS oscillator circuits. Ensure the application environment remains within the specified temperature range to maintain the ±30 ppm accuracy. Compare against higher-stability variants if tighter tolerances are required for precision timing applications.

Part Context

This part belongs to the QT325G series of thin-film or bulk acoustic wave crystals designed for surface mount technology. The 'HV' suffix typically denotes specific packaging or handling characteristics common to QST's high-volume production lines. It serves as a primary timekeeping element for digital logic and communication interfaces requiring stable clock signals.

Replacement Considerations

Direct substitutes include other 10 MHz crystals in 3225 packages with matching 8pF load capacitance and ≤150 Ohm ESR. Verify that alternative manufacturers offer identical ±30 ppm stability and compatible mounting dimensions. Cross-reference pinout compatibility, although SMD crystals generally lack polarity.