E1SHA18-8.000M TR

Crystals Overview

The E1SHA18-8.000M TR is a parallel fundamental mode quartz crystal resonator manufactured by Ecliptek, operating at a nominal frequency of 8 MHz. It utilizes an HC-49/US package with resistance weld sealing and RoHS compliance. Key electrical parameters include a load capacitance of 18 pF, a frequency tolerance of ±15 ppm, and a frequency stability of ±30 ppm. The device features a maximum equivalent series resistance (ESR) of 90 Ohms and supports a drive level of 1 mW. It operates within a temperature range of -20°C to +70°C.

Crystals Feature Summary

• Parallel fundamental AT-cut quartz crystal construction
• Resistance weld seal for environmental protection
• HC-49/US through-hole compatible form factor

Crystals Applications

• General purpose clock generation circuits
• Microcontroller system timing references
• Embedded digital logic applications

Crystals Procurement Notes

Verify the specific manufacturer datasheet for the E1SHA18-8.000M TR to confirm current production status and exact thermal ratings. Cross-reference the part number with authorized distributors to ensure authenticity and traceability. Confirm that the HC-49/US package dimensions align with the target PCB footprint requirements before finalizing procurement orders.

Crystals Selection Notes

Select this component when a standard 8 MHz reference with ±15 ppm tolerance is required for cost-sensitive designs. Ensure the circuit drive level does not exceed 1 mW to prevent frequency drift or crystal damage. Verify that the -20°C to +70°C operating range meets the environmental constraints of the intended application environment.

Crystals Part Context

This part belongs to the E1S series of standard quartz crystals from Ecliptek. It serves as a foundational timing element for digital systems requiring stable frequency sources. The HC-49/US package is widely adopted in legacy and modern electronics for its robust mechanical structure and ease of manual or automated insertion.

Crystals Replacement Considerations

Direct substitutes include the E1SJA18-8.000M TR and E2UJA18-8.000M-CXTR, which share similar HC-49/US packaging and 8 MHz frequencies. Verify that replacement parts match the 18 pF load capacitance and acceptable ESR limits to maintain circuit oscillation stability.