QT532S-12.000MAHJ-T

Overview

The QST QT532S-12.000MAHJ-T is a quartz crystal resonator operating at a fundamental frequency of 12 MHz. It features a frequency stability and tolerance of ±30 ppm at 25°C. The component utilizes an 18 pF load capacitance and exhibits an equivalent series resistance (ESR) of 40 Ohms. Designed for surface-mount applications, it employs a 4-SMD, No Lead package with dimensions of 5.00 mm x 3.20 mm x 0.90 mm. The device supports base harmonic operation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Surface-mount design in a compact 4-SMD no-lead package
• Fundamental mode operation at 12 MHz with ±30 ppm stability
• Operational reliability across industrial temperature ranges

Applications

• Industrial control systems requiring stable clock signals
• Commercial electronics utilizing microcontroller timing
• Communication devices needing precise frequency references

Procurement Notes

Verify the specific package configuration against schematic requirements, as datasheets may list variations between 2-SMD and 4-SMD no-lead types for similar part numbers. Confirm that the 40 Ohm ESR aligns with oscillator circuit design constraints. Ensure the ±30 ppm tolerance meets system accuracy specifications before finalizing procurement orders.

Selection Notes

Select this component when a 12 MHz fundamental frequency is required with moderate stability. The 40 Ohm ESR suits standard parallel resonance circuits. Compare against the QT532G series if a different package profile or ESR value is necessary. Verify load capacitance compatibility with the host oscillator IC to ensure accurate frequency generation without external trimming.

Part Context

This part belongs to the QT532G/QT532S family of quartz crystals from QST. These components are designed for general-purpose timing applications. The QT532S variant specifically denotes the 4-SMD no-lead form factor, distinguishing it from other package options within the same electrical specification family.

Replacement Considerations

The QT532G-12.000MAHJ-T is listed as a parameter-equivalent substitute. Verify package compatibility, as the QT532G may utilize a 2-SMD no-lead footprint compared to the 4-SMD no-lead design of the QT532S.