ECS-120-20-5PX-AEN-TR

Crystals Overview

The ECS-120-20-5PX-AEN-TR is a parallel fundamental quartz crystal manufactured by ECS Inc. It operates at a nominal frequency of 12 MHz with a load capacitance of 20 pF. The component features a frequency tolerance of ±30 ppm and stability of ±50 ppm. It utilizes an HC-49/US surface-mount package, measuring 11.4 mm in length and 4.8 mm in width. Electrical characteristics include an equivalent series resistance (ESR) of 50 Ohms and a drive level of 500 µW. The device supports a wide operating temperature range from -40°C to +85°C and is supplied in tape and reel packaging for automated assembly.

Crystals Feature Summary

• Surface-mount HC-49/US package design for automated PCB assembly
• Wide industrial temperature rating spanning -40°C to +85°C
• Fundamental parallel resonance mode operation

Crystals Applications

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

Crystals Procurement Notes

Verify the specific suffix codes against the manufacturer's current datasheet to confirm exact tolerance, stability, and drive level specifications. Ensure the ordering quantity aligns with the factory pack quantity requirements defined by ECS Inc. for this specific reel configuration. Confirm RoHS compliance status through official documentation prior to final procurement decisions.

Crystals Selection Notes

Select this component when a standard HC-49 footprint is required in a surface-mount configuration. The 20 pF load capacitance matches common microcontroller oscillator circuits. The 500 µW drive level suits low-power applications, while the extended temperature range ensures reliability in harsh environments compared to commercial-grade alternatives.

Crystals Part Context

This part belongs to the ECS Inc. crystal lineup, specifically utilizing the HC-49/US form factor adapted for surface mounting. It serves as a frequency reference within the broader category of passive electronic components used for timing and synchronization in digital electronics.

Crystals Replacement Considerations

Cross-reference with other SMD HC-49/US crystals offering 12 MHz frequency and 20 pF load capacitance. Verify that substitute parts match the 50 Ohm ESR and 500 µW drive level constraints to ensure circuit compatibility.