E1SJA18-6.000M TR

Crystals Overview

The E1SJA18-6.000M TR is a surface-mount quartz crystal resonator manufactured by Ecliptek, operating at a nominal frequency of 6.000 MHz. It features a frequency tolerance of ±15 ppm at 25°C and stability of ±30 ppm over the -40°C to +85°C temperature range. The component utilizes an AT-cut fundamental mode with a load capacitance of 18 pF and a maximum equivalent series resistance (ESR) of 120 Ohms. Packaged in an HC-49/US SMD form factor measuring 11.60mm x 4.85mm x 3.20mm, it supports parallel resonance operation with a maximum drive level of 1 mW.

Crystals Feature Summary

• AT-cut fundamental mode operation for stable parallel resonance
• Resistance-welded seal providing environmental protection
• RoHS compliant lead-free construction

Crystals Applications

• Microcontroller clock sources
• Communication interface timing circuits
• Industrial control system oscillators

Crystals Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm that the HC-49/US SMD footprint matches the target PCB design, as dimensions are critical for surface mount assembly. Ensure the 120 Ohm ESR limit aligns with the oscillator circuit's drive requirements to prevent overdriving the crystal element during production procurement.

Crystals Selection Notes

Select this component when a 6 MHz reference is required with ±15 ppm initial accuracy. The 18 pF load capacitance dictates external capacitor values for circuit tuning. Verify the -40°C to +85°C industrial temperature range meets application thermal constraints. Consider the 1 mW maximum drive level to ensure compatibility with low-power MCU oscillator outputs without additional buffering.

Crystals Part Context

This part belongs to the E1S series of short HC-49/US surface-mount crystals from Ecliptek. It shares the physical package profile with through-hole variants but is optimized for automated surface mount technology. The series typically offers RoHS compliance and resistance-welded seals for reliability in standard electronic assemblies requiring precise frequency generation.

Crystals Replacement Considerations

Direct substitutes include other manufacturers' 6 MHz HC-49/US SMD crystals with identical 18 pF load capacitance and ±15 ppm tolerance. Verify that alternative parts maintain the same 120 Ohm ESR maximum and 1 mW drive level limits to ensure electrical compatibility without redesigning the oscillator circuit.