QT161S-25.000MAAV-T

Overview

The QT161S-25.000MAAV-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 25 MHz with a load capacitance of 8 pF and an equivalent series resistance of 100 Ohms. The component features a 4-SMD, No Lead package with dimensions of 1.6 x 1.2 x 0.35 mm. Frequency stability is rated at ±30 ppm across both the reference temperature (25°C) and the extended operating range of -20 to +70°C. This seam-seal device provides reliable timing signals for digital circuits requiring precise clock synchronization.

Feature Summary

• Seam-seal construction for enhanced environmental protection
• Surface-mount 4-SMD no-lead form factor
• Stable frequency output within specified temperature ranges

Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing systems

Procurement Notes

Verify the manufacturer designation as QST or QST Products LLC when sourcing this specific part number. Confirm that the ordering suffix matches exactly to ensure the correct load capacitance and stability specifications are met. Cross-reference the datasheet to validate the 4-SMD package type and electrical parameters against your design requirements before finalizing procurement.

Selection Notes

Select this component when a compact surface-mount crystal is required for 25 MHz applications. Ensure the circuit design accommodates the 8 pF load capacitance to maintain accurate frequency performance. Consider the ±30 ppm stability rating relative to the operational environment's temperature variations to guarantee system reliability.

Part Context

This part belongs to the QT161S series of quartz crystals, which are characterized by their small footprint and low profile. The series is engineered for high-volume manufacturing processes, offering consistent performance in consumer electronics and industrial control systems where space constraints and thermal stability are critical design factors.

Replacement Considerations

Direct substitutes include other 25 MHz crystals with identical 4-SMD dimensions and 8 pF load capacitance. Verify that alternative parts meet the same ±30 ppm stability requirement and operate within the -20 to +70°C temperature range to ensure functional compatibility.