ECS-200-S-7S-TR Equivalent & Substitute Parts

Part Overview

The ECS-200-S-7S-TR is a 20 MHz crystal oscillator in 4-SOJ surface mount package with 30 Ohms equivalent series resistance (ESR). This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent or substitute parts is necessary for legacy system maintenance, repair operations, and inventory replenishment where original stock is depleted.

Substiute Parts

ECS-200-S-7S-TR

ECS Inc.In Stock: 2062ECS-200-S-7S-TR Datasheet

Current PartRFQ

ECS-200-S-7SX-TR

ECS Inc.In Stock: 1593ECS-200-S-7SX-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The ECS-200-S-7SX-TR qualifies as a substitute for the ECS-200-S-7S-TR based on the following matching parameters:

• Frequency: 20 MHz (identical)
• Frequency Tolerance: ±30ppm (identical)
• Frequency Stability: ±50ppm (identical)
• Operating Mode: Fundamental (identical)
• Package / Case: 4-SOJ, 9.40mm pitch (identical)
• Mounting Type: Surface Mount (identical)
• Operating Temperature Range: -10°C ~ 70°C (identical)
• Load Capacitance: Series (identical)

The primary difference between these parts is the ESR specification: the substitute part has 50 Ohms ESR compared to 30 Ohms in the original part. This variance falls within acceptable substitution parameters for crystal oscillator applications where ESR tolerance is not a critical design constraint.

Parameter Comparison

Engineering Selection Recommendations

The ECS-200-S-7SX-TR serves as a direct substitute for the ECS-200-S-7S-TR in applications where the ESR difference of 20 Ohms is acceptable within circuit design tolerances. Both parts share identical frequency, tolerance, stability, package geometry, and operating temperature specifications.

The substitute part offers improved regulatory compliance, meeting ROHS3 standards compared to the non-compliant status of the original part. Both parts maintain identical moisture sensitivity levels and REACH compliance status.

Selection between these parts should be based on circuit-specific ESR requirements and regulatory compliance needs of the end application.

Frequently Asked Questions (FAQ)

Q: Can the ECS-200-S-7SX-TR replace the ECS-200-S-7S-TR in existing designs?

A: Yes, provided the circuit design accommodates the 50 Ohms ESR specification of the substitute part. The higher ESR may affect oscillation startup characteristics and frequency stability margins in sensitive applications. Circuit simulation or prototype testing is appropriate when ESR tolerance is a design consideration.

Q: Are the physical packages identical?

A: Yes. Both parts use the 4-SOJ package with 9.40mm pitch, identical dimensions of 0.492" L x 0.181" W (12.50mm x 4.60mm), and maximum seated height of 0.146" (3.70mm). PCB layout and assembly processes require no modification.

Q: What is the difference in RoHS compliance?

A: The original ECS-200-S-7S-TR is RoHS non-compliant, while the substitute ECS-200-S-7SX-TR meets ROHS3 standards. For applications subject to RoHS regulations, the substitute part is the appropriate selection.

Q: Do both parts have the same frequency tolerance and stability?

A: Yes. Both parts specify ±30ppm frequency tolerance and ±50ppm frequency stability, ensuring equivalent frequency performance in circuit applications.

Q: Are the tape and reel packaging specifications the same?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging with identical moisture sensitivity level (MSL 1 - Unlimited), suitable for automated assembly processes.