E1SJA18-4.9152M TR

Crystals Overview

The E1SJA18-4.9152M TR is a surface-mount quartz crystal resonator manufactured by Ecliptek. It operates at a nominal frequency of 4.9152 MHz with a parallel fundamental mode of operation using AT-cut technology. The component features an 18 pF load capacitance and ±15 ppm frequency tolerance at 25°C, extending to ±30 ppm over the -40°C to +85°C industrial temperature range. Aging is rated at a maximum of 5 ppm per year. The device utilizes a resistance-welded metal seal within an HC-49/UP short SMD package (13.3mm x 4.85mm x 3.2mm) and complies with RoHS standards.

Crystals Feature Summary

• AT-cut fundamental resonance design for stable oscillation characteristics
• Resistance-welded metal seal construction ensuring environmental durability
• Industrial-grade wide temperature operational capability

Crystals Applications

• Microcontroller clock generation circuits
• Serial communication interface timing
• Industrial data acquisition gateways
• Embedded system synchronization

Crystals Procurement Notes

Verify that the specific part number matches the required frequency tolerance and load capacitance for your circuit design. Confirm compliance with RoHS directives if exporting to regulated markets. Ensure storage conditions adhere to moisture sensitivity level requirements to prevent soldering defects during assembly.

Crystals Selection Notes

Select this component when a precise 4.9152 MHz reference is needed for UART or similar serial protocols requiring zero-error baud rate division. Consider the 18pF load capacitance for matching external capacitors and verify that the drive level remains within safe limits for the oscillator circuit to avoid frequency drift.

Crystals Part Context

This part belongs to the E1S series of HC-49/UP short surface-mount crystals from Ecliptek. The series offers various frequencies and tolerances, catering to both consumer and industrial applications. The E1SJA18 variant specifically denotes the 18pF load capacitance configuration within this product line.

Crystals Replacement Considerations

Direct substitutes include other manufacturers' HC-49/UP SMD crystals with identical 4.9152 MHz frequency, 18pF load capacitance, and ±15ppm tolerance. Verify physical dimensions and pin compatibility before substitution.