ECS-200-20-1

Crystals Overview

The ECS-200-20-1 is a 20 MHz fundamental mode quartz crystal manufactured by ECS Inc. It features a through-hole mounting type with an HC-49/US package configuration. The component operates within a temperature range of -20°C to +70°C and supports a load capacitance of 20pF. Key electrical specifications include a frequency tolerance of ±30ppm, frequency stability of ±50ppm, and an equivalent series resistance (ESR) of 50 Ohms. The physical dimensions are approximately 11.35mm in length and 4.65mm in width.

Crystals Feature Summary

• Fundamental resonance mode operation for precise frequency control
• Through-hole mounting design compatible with standard PCB layouts
• HC-49/US package format ensuring mechanical robustness

Crystals Applications

• Microcontroller clock generation circuits
• Communication interface timing references
• General-purpose digital logic timing sources

Crystals Procurement Notes

Verify the specific package variant, as ECS utilizes suffixes like '1X' or '1' to denote dimensional differences within the HC-49 family. Confirm that the required operating temperature range aligns with the -20°C to +70°C specification. Ensure the circuit design accounts for the 20pF load capacitance and 50 Ohm ESR to guarantee stable oscillation. Cross-reference datasheets for exact pinout and mounting hole specifications before finalizing the bill of materials.

Crystals Selection Notes

Select this component when a through-hole crystal is preferred over surface-mount alternatives for easier manual assembly or rework. The 20 MHz frequency is suitable for standard microcontroller systems requiring moderate speed. Consider the ±30ppm tolerance if higher precision is not critical. Verify compatibility with the oscillator circuit's drive level requirements, typically around 1mW for this package type.

Crystals Part Context

This part belongs to the standard HC-49/US crystal series, widely used in consumer electronics and industrial equipment. It serves as a basic timing element for digital systems. The manufacturer offers various variants with different frequencies and tolerances within this package style. This specific model represents a common 20 MHz option for general-purpose applications.

Crystals Replacement Considerations

Direct substitutes include other manufacturers' HC-49/US crystals with identical 20 MHz frequency, 20pF load capacitance, and similar ESR values. Ensure the replacement maintains the same physical footprint and pin spacing. Variants such as those from CTS or NDK may be considered if they match the electrical parameters and mounting style.