ECS-100-S-1 10 MHz Crystal Equivalent & Substitute Parts

Part Overview

The ECS-100-S-1 is a 10 MHz through-hole crystal oscillator in HC-49/U package with 30 Ohms equivalent series resistance (ESR) and ±30ppm frequency tolerance. This part is classified as "Not For New Designs," making identification of active equivalent alternatives essential for ongoing production and maintenance applications. The crystal operates in fundamental mode across the -10°C to 70°C temperature range with series load capacitance configuration.

Substiute Parts

ECS-100-S-1

ECS Inc.In Stock: 2035ECS-100-S-1 Datasheet

Current PartRFQ

ECS-100-S-1X

ECS Inc.In Stock: 2843ECS-100-S-1X Datasheet

Parametric EquivalentRFQ

MP100

CTS-Frequency ControlsIn Stock: 2326MP100 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-100-S-1 is determined by strict equivalence across the following critical parameters:

• Frequency: 10 MHz (exact match required)
• Frequency Tolerance: ±30ppm (exact match required)
• ESR: 30 Ohms (exact match required)
• Package / Case: HC-49/U (exact match required)
• Mounting Type: Through Hole (exact match required)
• Load Capacitance Configuration: Series (exact match required)
• Operating Mode: Fundamental (exact match required)

Both identified substitutes meet these criteria. Differences in operating temperature range, physical dimensions within tolerance, and product status are noted but do not disqualify substitution eligibility based on electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both ECS-100-S-1X and MP100 are electrically and mechanically equivalent to the ECS-100-S-1 based on all critical substitution parameters. Selection between alternatives should consider the following factors:

ECS-100-S-1X is the parametric equivalent from the same manufacturer (ECS Inc.) with identical specifications. This part carries Active product status and ROHS3 compliance, addressing the obsolescence concern of the original part while maintaining manufacturer continuity.

MP100 is a direct manufacturer equivalent from CTS-Frequency Controls with Active product status and ROHS3 compliance. This part extends the operating temperature range to -20°C ~ 70°C, providing broader environmental coverage. Physical dimensions differ slightly (0.427" L x 0.150" W versus 0.447" L x 0.183" W) while maintaining HC-49/U package classification and identical electrical performance.

Both substitutes are suitable for applications requiring RoHS3 compliance. The choice between ECS-100-S-1X and MP100 depends on manufacturer preference, supply chain considerations, and whether the extended temperature range of MP100 provides operational advantage.

Frequently Asked Questions (FAQ)

Q: Can ECS-100-S-1X and MP100 be used interchangeably with ECS-100-S-1?

A: Both parts meet all critical electrical and mechanical substitution criteria: 10 MHz frequency, ±30ppm tolerance, 30 Ohms ESR, HC-49/U package, through-hole mounting, and series load capacitance configuration. They are electrically and mechanically equivalent for circuit applications.

Q: What is the significance of the "Not For New Designs" status on ECS-100-S-1?

A: This designation indicates the part is in end-of-life phase and should not be selected for new product development. Both substitute parts carry Active status, making them appropriate for ongoing production and new applications.

Q: How do the physical dimensions of MP100 differ, and does this affect substitution?

A: MP100 measures 0.427" L x 0.150" W compared to ECS-100-S-1 at 0.447" L x 0.183" W. Both conform to HC-49/U package specification and maintain identical height (0.530" maximum seated). These dimensional variations are within package tolerance and do not affect electrical performance or PCB layout compatibility for standard through-hole applications.

Q: Does the extended temperature range of MP100 (-20°C ~ 70°C versus -10°C ~ 70°C) provide an advantage?

A: The extended lower temperature limit of MP100 provides operational capability in colder environments. Selection should be based on application requirements. If the circuit operates only within -10°C ~ 70°C, both parts perform identically.

Q: Are both substitutes RoHS compliant?

A: Yes. Both ECS-100-S-1X and MP100 carry ROHS3 compliance. The original ECS-100-S-1 is RoHS non-compliant. Substitution with either alternative addresses RoHS compliance requirements for regulated applications.

Q: What is the inventory status of these parts?

A: ECS-100-S-1: 1985 Pcs; ECS-100-S-1X: 2750 Pcs; MP100: 2300 Pcs. All are listed as new original stock.