QT325G-38.400MAHV-T

Overview

The QT325G-38.400MAHV-T is a surface-mount crystal oscillator manufactured by QST, operating at a nominal frequency of 38.4 MHz. It features an 8 pF load capacitance and a maximum series resistance of 60 Ohms. The component utilizes a 4-SMD, no-lead package with physical dimensions of 3.2 x 2.5 x 0.8 mm. Frequency stability is rated at ±30 ppm across the commercial temperature range of -40°C to +85°C.

Feature Summary

• Compact 4-SMD no-lead package design for automated surface-mount assembly
• High frequency stability of ±30 ppm over extended commercial temperature ranges
• Optimized load capacitance of 8 pF for standard circuit integration

Applications

• Microcontroller clock sources
• Communication interface timing
• Embedded system oscillators

Procurement Notes

Verify the specific suffix HV against official QST documentation to confirm the exact temperature range and tolerance specifications. Ensure the ordering part number matches the required frequency and package type. Cross-reference datasheets from authorized distributors to confirm current production status and availability before finalizing procurement decisions.

Selection Notes

Select this component when a 38.4 MHz reference signal is required for digital logic or communication protocols. The 8 pF load capacitance must match the external circuit requirements. Verify that the ±30 ppm stability meets the system's timing accuracy needs within the specified -40°C to +85°C operating environment.

Part Context

This part belongs to the QT325G series of quartz crystals from QST. The series offers various frequency options and tolerance grades, identified by suffix codes such as A, D, E, T, G, H, and V. The HV suffix specifically denotes the 38.4 MHz variant with defined stability and temperature characteristics.

Replacement Considerations

Direct substitutes include other QT325G variants with identical 38.4 MHz frequency and compatible package dimensions. Verify equivalent electrical parameters such as load capacitance and series resistance. Alternative manufacturers may offer functionally similar SMD crystals but require validation of pin compatibility and thermal performance.