ECS-41-20-5P-TR Crystal Equivalent & Substitute Parts

Part Overview

The ECS-41-20-5P-TR is a 4.09625 MHz surface mount crystal oscillator in HC-49/US package with 20pF load capacitance and 150 Ohms ESR. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent substitute parts is necessary for maintenance, repair, and legacy system support where this specific frequency and package configuration is required.

Substiute Parts

ECS-41-20-5P-TR

ECS Inc.In Stock: 1783ECS-41-20-5P-TR Datasheet

Current PartRFQ

ECS-41-20-5PX-TR

ECS Inc.In Stock: 50523ECS-41-20-5PX-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECS-41-20-5P-TR is determined by the following critical parameters:

• Frequency Compatibility: The substitute must operate at 4.096 MHz, which falls within the frequency tolerance band of ±30ppm relative to the original 4.09625 MHz specification. The frequency difference of 0.03125 MHz represents approximately 7.6ppm deviation, remaining within acceptable tolerance limits for this crystal class.

• Load Capacitance: Both parts must specify 20pF load capacitance to ensure proper circuit integration without requiring oscillator circuit redesign.

• ESR (Equivalent Series Resistance): Both parts maintain 150 Ohms ESR, ensuring equivalent electrical performance and circuit stability.

• Package and Mounting: HC-49/US package with surface mount configuration must be identical to maintain PCB compatibility and assembly process consistency.

• Operating Temperature Range: The -10°C ~ 70°C operating range must be maintained for thermal environment compatibility.

• Operating Mode: Fundamental mode operation is required for direct substitution without circuit modification.

Parameter Comparison

Engineering Selection Recommendations

The ECS-41-20-5PX-TR serves as the direct substitute for the ECS-41-20-5P-TR. Key selection factors include:

Product Status: The ECS-41-20-5PX-TR carries Active product status, ensuring ongoing manufacturer support, availability, and supply chain reliability compared to the Not For New Designs status of the original part.

Regulatory Compliance: The substitute part is ROHS3 Compliant, whereas the original part is RoHS non-compliant. This compliance improvement is significant for applications subject to RoHS regulations and environmental standards.

Electrical Equivalence: All critical electrical parameters—frequency tolerance, load capacitance, ESR, and operating mode—are identical between the two parts. The frequency difference of 7.6ppm is within the ±30ppm tolerance specification, ensuring functional compatibility in the target application.

Physical Compatibility: Identical package dimensions, height, and surface mount configuration ensure direct PCB compatibility without layout or assembly process modifications.

Supply Availability: The substitute part maintains significantly higher inventory levels (50,478 Pcs vs. 1,749 Pcs), supporting consistent supply for production and maintenance requirements.

Frequently Asked Questions (FAQ)

Q: Can the ECS-41-20-5PX-TR replace the ECS-41-20-5P-TR without circuit modification?

A: Yes. Both parts share identical load capacitance (20pF), ESR (150 Ohms), package configuration (HC-49/US), and operating mode (Fundamental). The frequency difference of 7.6ppm falls within the ±30ppm tolerance specification for both parts, ensuring functional compatibility.

Q: What is the frequency difference between these two crystals?

A: The ECS-41-20-5P-TR operates at 4.09625 MHz while the ECS-41-20-5PX-TR operates at 4.096 MHz. The difference is 0.03125 MHz or approximately 7.6ppm, which is within the ±30ppm tolerance band specified for both parts.

Q: Are there any compliance differences between the main part and substitute?

A: Yes. The ECS-41-20-5PX-TR is ROHS3 Compliant, while the ECS-41-20-5P-TR is RoHS non-compliant. Both parts maintain identical REACH Unaffected and EAR99 ECCN classifications.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts use the HC-49/US package with identical dimensions (0.449" L x 0.189" W / 11.40mm x 4.80mm) and maximum seated height (0.169" / 4.30mm). No PCB layout modifications are required.

Q: What is the moisture sensitivity level for both parts?

A: Both the ECS-41-20-5P-TR and ECS-41-20-5PX-TR are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Is the substitute part actively manufactured?

A: Yes. The ECS-41-20-5PX-TR carries Active product status with substantial inventory availability, ensuring reliable supply for current and future applications. The original ECS-41-20-5P-TR is classified as Not For New Designs.