QT325G-30.000MAHE-T

Overview

The QT325G-30.000MAHE-T is a surface-mount quartz crystal oscillator manufactured by QST. It operates at a nominal frequency of 30 MHz with a load capacitance of 12 pF and an equivalent series resistance (ESR) of 60 Ohms. The component features a 4-SMD, No Lead package configuration. Frequency stability and tolerance are specified at ±30 ppm across the operating temperature range.

Feature Summary

• Surface-mount design for automated assembly
• Quartz resonator technology for precise timing
• Standardized 4-terminal SMD footprint

Applications

• General-purpose clock signal generation
• Microcontroller system timing references
• Communication interface synchronization

Procurement Notes

Verify the manufacturer designation as QST or TXC Corporation, as product lines may overlap. Confirm the specific suffix HE-T matches the required 12pF load capacitance and 60 Ohm ESR specifications. Ensure the 4-SMD No Lead package dimensions align with the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a 30 MHz reference is required in a compact surface-mount form factor. The ±30 ppm stability suits standard digital logic applications. Verify that the 12pF load capacitance matches the host circuit's design requirements to ensure accurate frequency operation without additional external tuning components.

Part Context

This part belongs to the QT325G series of miniature quartz crystals. The series typically offers various frequencies and package options for consumer electronics and industrial control systems. The 30.000 variant provides a common clock rate for microprocessors and communication protocols requiring precise timing signals.

FAQ

What is the equivalent series resistance (ESR) of this crystal?

The ESR is specified as 60 Ohms.

Does this component use a leaded or surface-mount package?

It utilizes a 4-SMD, No Lead package configuration.