STDCQS1-25M

Overview

The STDCQS1-25M is a surface-mount MHz crystal manufactured by NDK. It operates at a nominal frequency of 25 MHz with a frequency tolerance of ±15ppm and stability of ±50ppm. The component features an 8pF load capacitance and 100 Ohms equivalent series resistance (ESR). It utilizes the NX3225SA series design in a 4-SMD, no-lead package measuring 3.20mm x 2.50mm x 0.60mm maximum height. Rated for base resonance mode, it supports an extended operating temperature range from -40°C to 125°C and holds AEC-Q200 automotive grade certification.

Feature Summary

• Automotive-grade reliability certified under AEC-Q200 standards
• Extended high-temperature operational capability up to 125°C
• Compact surface-mount form factor suitable for space-constrained designs

Applications

• Automotive electronic systems requiring robust timing references
• High-temperature industrial control applications
• Consumer electronics utilizing standard microcontroller clock inputs

Procurement Notes

Verify that the specific order includes the STD-CQS-1 suffix to ensure AEC-Q200 compliance and the specified 125°C temperature rating. Confirm the load capacitance matches the target circuit design requirements before integration. Check current supply chain status as availability may fluctuate due to demand.

Selection Notes

Select this component when automotive qualification and wide temperature range are mandatory. Compare ESR values against oscillator circuit drive levels to prevent over-driving. Ensure the 3.2x2.5mm footprint aligns with PCB layout constraints. Consider alternative frequencies within the same series if different clock speeds are required.

Part Context

This part belongs to the NX3225SA family of miniature crystals produced by NDK. The manufacturer specializes in quartz crystal devices with a focus on high stability and miniaturization. This series is designed for general-purpose and automotive applications requiring reliable frequency generation in compact packages.

Replacement Considerations

STDCZS1-25M offers similar electrical parameters but differs in ESR and potentially packaging specifications. Verify mechanical dimensions and thermal ratings before substitution. Other series members like CS14517-25M share the 25MHz frequency but lack the specific automotive certification.