STDCRA3-8M

Overview

The STDCRA3-8M is a surface-mount crystal resonator manufactured by NDK, operating at a fundamental frequency of 8 MHz. It features an 8 pF load capacitance and a maximum equivalent series resistance (ESR) of 500 Ohms. The component exhibits a frequency tolerance of ±50 ppm and a stability of ±150 ppm. Designed for robust performance in demanding environments, it supports an extended operating temperature range from -40°C to +150°C. The device utilizes a 2-SMD, no-lead package with dimensions of 2.0 mm x 1.2 mm x 0.6 mm, ensuring compatibility with automated surface-mount assembly processes.

Feature Summary

• Extended high-temperature operational capability suitable for harsh industrial environments
• High ESR specification compatible with oscillator circuits requiring significant drive level margins
• Compact surface-mount footprint optimized for space-constrained printed circuit board layouts

Applications

• Automotive electronics systems requiring wide thermal stability
• Industrial control equipment operating in extreme temperatures
• Consumer devices utilizing low-power clock generation

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status prior to procurement, as environmental declarations may vary by production batch. Confirm that the 500 Ohm ESR aligns with the target oscillator circuit design requirements to ensure reliable startup. Ensure the 2-SMD package dimensions match the designated footprints on the target PCB layout to prevent soldering defects during assembly.

Selection Notes

Select this component when application requirements demand operation beyond standard commercial temperature limits, specifically up to 150°C. The high ESR value makes it suitable for applications where lower power consumption or specific oscillator loop gain characteristics are necessary. Evaluate the ±150 ppm stability against system timing accuracy needs, as this tolerance is broader than standard commercial crystals.

Part Context

This part belongs to the STDCRA series of automotive-grade and industrial-grade crystal resonators produced by NDK. The series is characterized by its ability to withstand severe thermal cycling and mechanical stress. Unlike standard commercial crystals, these components are engineered for reliability in sectors such as automotive infotainment and engine management systems where failure is not an option.

Replacement Considerations

STDCRA3-16M

FAQ

What is the maximum operating temperature for the STDCRA3-8M?

The component is rated for an operating temperature range of -40°C to +150°C.

Does the STDCRA3-8M support lead-free soldering processes?

Yes, the component complies with RoHS directives and is suitable for lead-free soldering applications.