ECS-122.8-S-7SX-TR

Crystals Overview

The ECS-122.8-S-7SX-TR is a fundamental series quartz crystal oscillator manufactured by ECS Inc., designed for surface-mount applications. It operates at a nominal frequency of 12.288 MHz with a frequency tolerance of ±30 ppm and stability of ±50 ppm. The component features an equivalent series resistance (ESR) of 50 Ohms and utilizes a 4-SOJ package measuring 12.50mm x 4.60mm with a maximum seated height of 3.70mm. This device is engineered for reliable timing performance in electronic circuits requiring precise clock signals.

Crystals Feature Summary

• Fundamental series quartz crystal construction
• Surface-mount 4-SOJ package design
• Low profile physical dimensions

Crystals Applications

• General purpose timing circuits
• Microcontroller clock sources
• Communication interface synchronization

Crystals Procurement Notes

Verify the specific load capacitance requirements against your circuit design, as datasheets may list variations such as series or specific pF values. Confirm that the 12.288 MHz frequency aligns with system clock needs. Ensure the 50 Ohm ESR is compatible with the oscillator circuit's drive level specifications to prevent over-driving the crystal. Check for RoHS compliance status if required by your manufacturing standards.

Crystals Selection Notes

Select this component when a 12.288 MHz fundamental frequency is required for digital logic or communication protocols. Consider the 4-SOJ package size for PCB space constraints. Evaluate the ±30 ppm tolerance against system jitter budgets. Compare the 50 Ohm ESR with alternative crystals if lower impedance is needed for specific low-power oscillator designs. Ensure the operating temperature range meets environmental conditions.

Crystals Part Context

This part belongs to the ECS SMD crystal family, characterized by glass-sealed ceramic packages. It shares the 12.288 MHz frequency point with other variants like the ECS-122.8-S-20A-RHY-TR but differs in package type and electrical parameters. The 4-SOJ form factor distinguishes it from smaller SMD options, offering a balance between mechanical robustness and mounting density for industrial and consumer electronics.

Crystals Replacement Considerations

Direct substitutes include the ECS-122.8-S-7S-TR and ECS-122.8-18-7SX-TR, which share similar frequency and package characteristics. Verify that any replacement maintains the same 12.288 MHz frequency and 4-SOJ footprint. Cross-reference ESR and tolerance values to ensure circuit compatibility without redesigning the oscillator network.