ECS-35-18-10 Crystal Oscillator Equivalent & Substitute Parts

Part Overview

The ECS-35-18-10 is a 4.679545 MHz through-hole crystal oscillator designed for applications requiring precise frequency control. This cylindrical can package component operates at fundamental mode with 18pF load capacitance and 200 Ohms equivalent series resistance. The part is currently active in production. Substitute parts may be required due to inventory availability, compliance requirements, or specific application certifications.

Substiute Parts

ECS-35-18-10

ECS Inc.In Stock: 1129ECS-35-18-10 Datasheet

Current PartRFQ

ECS-35-18-10X

ECS Inc.In Stock: 2864ECS-35-18-10X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for crystal oscillators is determined by strict parameter matching across electrical and mechanical specifications. The ECS-35-18-10X qualifies as a parametric equivalent based on the following criteria:

Critical Matching Parameters:

• Frequency: 4.679545 MHz (exact match)
• Frequency Stability: ±50ppm (exact match)
• Load Capacitance: 18pF (exact match)
• ESR: 200 Ohms (exact match)
• Operating Mode: Fundamental (exact match)
• Operating Temperature Range: -10°C ~ 60°C (exact match)
• Mounting Type: Through Hole (exact match)
• Package Type: Cylindrical Can, Radial (exact match)
• Physical Dimensions: 0.126" Dia x 0.413" L (exact match)

All electrical and mechanical parameters align precisely between the main part and substitute, confirming direct interchangeability at the component level.

Parameter Comparison

Engineering Selection Recommendations

Both ECS-35-18-10 and ECS-35-18-10X are active production parts with identical electrical and mechanical specifications. The primary distinction is regulatory compliance: ECS-35-18-10X carries ROHS3 compliance, while ECS-35-18-10 is RoHS non-compliant. Selection between these parts depends on application requirements and regional regulatory mandates. Both parts maintain REACH Unaffected status and identical export classification (EAR99). Inventory availability differs, with ECS-35-18-10X offering higher stock levels (2795 Pcs vs. 1085 Pcs).

Frequently Asked Questions (FAQ)

Q: Can ECS-35-18-10X replace ECS-35-18-10 in existing designs?

A: Yes. All electrical parameters (frequency, stability, load capacitance, ESR, operating mode, temperature range) and mechanical specifications (mounting type, package, dimensions) are identical. Direct substitution is supported at the component level.

Q: What is the difference between these two parts?

A: The primary difference is RoHS compliance status. ECS-35-18-10X is ROHS3 compliant, while ECS-35-18-10 is RoHS non-compliant. All functional and physical characteristics are identical.

Q: Are there any compatibility concerns with the cylindrical can package?

A: No. Both parts use identical cylindrical can, radial package configuration with matching dimensions (0.126" Dia x 0.413" L). PCB footprints and mounting procedures are interchangeable.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For applications subject to RoHS directives, ECS-35-18-10X is the appropriate choice. Both parts are active production items with stable availability.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts share identical moisture sensitivity level (MSL 1 - Unlimited), indicating no special moisture control requirements during storage or handling.