ECS-271.2-10-37Q-ES-TR

Crystals Overview

The ECS-271.2-10-37Q-ES-TR is a fundamental quartz crystal oscillator from the ECX-37Q series, manufactured by ECS Inc. It operates at a nominal frequency of 27.12 MHz with a tolerance of ±30 ppm and stability of ±50 ppm. The component features a load capacitance of 10 pF and an equivalent series resistance (ESR) of 80 Ohms maximum. Designed for automotive applications, it holds AEC-Q200 qualification. The device utilizes a compact 4-SMD surface mount package measuring 2.0 mm x 1.6 mm x 0.45 mm. It supports a wide operating temperature range from -40°C to +125°C and accepts a drive level of 10 µW.

Crystals Feature Summary

• AEC-Q200 qualified for automotive reliability standards
• Ultra-low profile ceramic package suitable for space-constrained designs
• Fundamental mode operation ensuring stable frequency generation

Crystals Applications

• Automotive electronic control units (ECUs)
• Infotainment system clock references
• On-board diagnostic interfaces
• Telematics modules

Crystals Procurement Notes

Verify that the specific suffix 'ES-TR' corresponds to the required tape-and-reel packaging configuration for automated assembly lines. Confirm that the AEC-Q200 qualification status meets the specific reliability requirements of the target automotive application. Ensure the 10 µW drive level is compatible with the host circuit's oscillator design to prevent overdriving the crystal element.

Crystals Selection Notes

Select this component when a 27.12 MHz reference is required for automotive-grade systems demanding high thermal stability across extended temperature ranges. The 10 pF load capacitance must match the external capacitors specified in the microcontroller or oscillator circuit schematic. Consider the 80 Ohm ESR limit when designing the feedback network to ensure reliable startup conditions under all environmental conditions.

Crystals Part Context

This part belongs to the ECX-37Q series of miniature crystals designed specifically for harsh environments. The series emphasizes robustness and miniaturization, making it suitable for modern automotive electronics where board space is limited. The 4-pin SMD format provides mechanical stability compared to 2-pin variants, enhancing resistance to shock and vibration during vehicle operation.

Crystals Replacement Considerations

Direct substitutes include other AEC-Q200 qualified 27.12 MHz crystals with identical 10 pF load capacitance and similar physical dimensions. Verify that alternative parts maintain the same 80 Ohm ESR maximum and operate within the -40°C to +125°C range. Cross-reference pinout configurations if using different package styles.