ECS-80-S-1 8 MHz Crystal Equivalent & Substitute Parts

Part Overview

The ECS-80-S-1 is an 8 MHz through-hole crystal oscillator in HC-49/U package with 35 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. Substitute parts must maintain identical electrical performance and mechanical compatibility within the HC-49/U form factor.

Substiute Parts

ECS-80-S-1

ECS Inc.In Stock: 928ECS-80-S-1 Datasheet

Current PartRFQ

ECS-80-S-1X

ECS Inc.In Stock: 1614ECS-80-S-1X Datasheet

Parametric EquivalentRFQ

MP080

CTS-Frequency ControlsIn Stock: 2068MP080 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-80-S-1 is determined by strict equivalence across the following critical parameters:

• Frequency: 8 MHz (exact match required)
• Frequency Tolerance: ±30ppm (exact match required)
• ESR: 35 Ohms (exact match required)
• Package / Case: HC-49/U (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Mode: Fundamental (exact match required)

Two substitute parts meet these criteria: ECS-80-S-1X (parametric equivalent from ECS Inc.) and MP080 (direct manufacturer equivalent from CTS-Frequency Controls). Both maintain identical electrical specifications and mechanical form factor compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both ECS-80-S-1X and MP080 provide electrical and mechanical equivalence to the ECS-80-S-1. Selection between these substitutes should be based on the following factors:

ECS-80-S-1X is the direct parametric equivalent from the original manufacturer (ECS Inc.) and maintains the identical operating temperature range (-10°C ~ 70°C). This part carries Active product status and ROHS3 compliance, making it suitable for applications requiring regulatory alignment with the original design intent.

MP080 from CTS-Frequency Controls offers an extended lower operating temperature limit (-20°C ~ 70°C) compared to the original part, providing broader thermal performance. This part also carries Active product status and ROHS3 compliance. The dimensional difference (0.427" L x 0.150" W versus 0.447" L x 0.183" W) remains within the HC-49/U package specification and does not affect PCB footprint compatibility.

Both substitutes are available in higher inventory quantities than the original part, supporting production continuity.

Frequently Asked Questions (FAQ)

Q: Can ECS-80-S-1X and MP080 be used interchangeably with ECS-80-S-1?

A: Yes. Both parts maintain identical frequency (8 MHz), frequency tolerance (±30ppm), ESR (35 Ohms), and HC-49/U package specifications. They are electrically and mechanically equivalent for direct substitution.

Q: What is the difference between ECS-80-S-1 and ECS-80-S-1X?

A: The parts are parametrically identical in electrical specifications and package form factor. The primary differences are product status (ECS-80-S-1X is Active versus Not For New Designs) and RoHS compliance (ROHS3 Compliant versus non-compliant). The series designation differs (HC-49UX versus HC-49U).

Q: Does MP080 have different physical dimensions?

A: MP080 has slightly different length and width dimensions (0.427" L x 0.150" W versus 0.447" L x 0.183" W for ECS-80-S-1). Both conform to HC-49/U package specifications. The height remains identical at 0.530" (13.46mm) maximum. These dimensional variations do not affect PCB footprint compatibility or mounting.

Q: What is the operating temperature difference between MP080 and the other parts?

A: MP080 operates from -20°C to 70°C, extending 10°C lower than ECS-80-S-1 and ECS-80-S-1X, which operate from -10°C to 70°C. This extended range may be beneficial for applications requiring broader thermal performance.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both ECS-80-S-1X and MP080 carry ROHS3 compliance. The original ECS-80-S-1 is RoHS non-compliant.

Q: Why is ECS-80-S-1 marked as Not For New Designs?

A: This designation indicates the part is obsolete or being phased out by the manufacturer. ECS-80-S-1X and MP080 are both Active products and are recommended for new applications and ongoing production.