E1SFA12-3.6864M TR

Crystals Overview

The E1SFA12-3.6864M TR is a quartz crystal resonator from the Ecliptek E1S series, designed for surface mount applications. It operates at a nominal frequency of 3.6864 MHz with a load capacitance of 12 pF and an equivalent series resistance of 200 Ohms. The component provides a frequency stability of ±30 ppm at 25°C and ±50 ppm over the operating temperature range of -40°C to +85°C. Maximum aging is specified at 5 ppm per year. The unit utilizes an HC-49/UP package style with dimensions of 3.2 mm in length, 13.3 mm in width, and 4.85 mm in height.

Crystals Feature Summary

• Surface mount quartz crystal resonator utilizing HC-49/UP package geometry
• High frequency stability with ±30 ppm tolerance at 25°C and ±50 ppm across the extended temperature range
• Low aging rate of maximum 5 ppm per year ensures long-term signal integrity

Crystals Applications

• Microcontroller clock source circuits
• Embedded system timing references
• Communication module frequency standards

Crystals Procurement Notes

Verify that the specific part number matches the required package dimensions and electrical tolerances for your design. Confirm the operating temperature range meets your environmental requirements. Ensure the load capacitance aligns with your circuit's oscillator configuration. Check RoHS compliance status if restricted substances are a concern. Validate supplier documentation against official manufacturer specifications before integration.

Crystals Selection Notes

Select this component when a precise 3.6864 MHz reference is needed in a compact surface mount form factor. The HC-49/UP style offers familiar mounting characteristics despite its small footprint. Consider the ±50 ppm stability limit for wide temperature environments. The 12 pF load capacitance must match the oscillator circuit design. Evaluate the 200 Ohm ESR against driver strength requirements.

Crystals Part Context

This part belongs to the Ecliptek E1S series of quartz crystal units. The series focuses on providing reliable frequency control solutions for consumer and industrial electronics. These components bridge the gap between traditional through-hole crystals and modern miniaturized surface mount technologies. The E1S line emphasizes stability and durability for mass-produced electronic devices.

Crystals Replacement Considerations

Direct substitutes must match the 3.6864 MHz frequency, 12 pF load capacitance, and HC-49/UP package dimensions. Verify that alternative parts offer equal or better frequency stability and aging rates. Ensure compatibility with existing PCB footprints and soldering profiles.