ECS-49-18-10 Crystal Equivalent & Substitute Parts

Part Overview

The ECS-49-18-10 is a 4.9152 MHz through-hole crystal oscillator in a cylindrical can package with 18pF load capacitance and 150 Ohms equivalent series resistance. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Organizations using legacy equipment or maintaining existing designs may require equivalent substitutes that maintain identical electrical and mechanical specifications while offering improved availability or compliance status.

Substiute Parts

ECS-49-18-10

ECS Inc.In Stock: 1285ECS-49-18-10 Datasheet

Current PartRFQ

ECS-49-18-10X

ECS Inc.In Stock: 30722ECS-49-18-10X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECS-49-18-10 is determined by strict equivalence across the following critical parameters:

• Frequency: 4.9152 MHz (exact match required)
• Frequency Stability: ±50ppm (exact match required)
• Load Capacitance: 18pF (exact match required)
• ESR: 150 Ohms (exact match required)
• Operating Mode: Fundamental (exact match required)
• Operating Temperature Range: -10°C to 60°C (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package Type: Cylindrical Can, Radial (exact match required)
• Physical Dimensions: 0.126" Dia × 0.413" L (exact match required)
• Moisture Sensitivity Level: 1 (exact match required)

The ECS-49-18-10X meets all these criteria and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The ECS-49-18-10X is a direct parametric equivalent to the ECS-49-18-10 across all electrical and mechanical specifications. The primary distinction is product lifecycle status: the ECS-49-18-10 is designated Not For New Designs, while the ECS-49-18-10X carries Active status.

Additionally, the ECS-49-18-10X provides improved regulatory compliance with ROHS3 certification, whereas the original part is RoHS non-compliant. For applications requiring RoHS compliance or long-term component availability, the ECS-49-18-10X is the appropriate selection. Both parts maintain identical REACH and ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can the ECS-49-18-10X be used as a direct replacement for the ECS-49-18-10?

A: Yes. The ECS-49-18-10X is a parametric equivalent with identical frequency, load capacitance, ESR, operating temperature range, and physical dimensions. Pin-for-pin and footprint compatibility is maintained.

Q: What is the difference between these two parts?

A: The ECS-49-18-10X is the active production equivalent of the ECS-49-18-10. The primary differences are product status (Active vs. Not For New Designs) and RoHS compliance (ROHS3 Compliant vs. RoHS non-compliant). All electrical and mechanical parameters are identical.

Q: Are there any package or mounting differences?

A: No. Both parts use identical cylindrical can, radial through-hole packages with the same physical dimensions (0.126" Dia × 0.413" L).

Q: Which part should I specify for new designs?

A: The ECS-49-18-10X should be specified for new designs, as it carries Active product status and ROHS3 compliance.

Q: Is the load capacitance identical between these parts?

A: Yes. Both parts have 18pF load capacitance and 150 Ohms ESR.