ECS-110-S-4 Crystal Equivalent & Substitute Parts

Part Overview

The ECS-110-S-4 is an 11 MHz through-hole crystal oscillator in HC-49/US package format, designed for fundamental mode operation with 60 Ohms equivalent series resistance. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying parametrically equivalent substitute parts is necessary to maintain design continuity for existing applications and to transition to active product lines where available.

Substiute Parts

ECS-110-S-4

ECS Inc.In Stock: 1253ECS-110-S-4 Datasheet

Current PartRFQ

ECS-110-S-4X

ECS Inc.In Stock: 1509ECS-110-S-4X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECS-110-S-4 is determined by strict parametric matching across the following critical criteria:

• Frequency: Must be 11 MHz
• Frequency Tolerance: Must be ±30ppm
• Frequency Stability: Must be ±50ppm
• ESR: Must be 60 Ohms
• Operating Mode: Must be Fundamental
• Package / Case: Must be HC-49/US
• Mounting Type: Must be Through Hole
• Operating Temperature Range: Must be -10°C ~ 70°C
• Load Capacitance: Must be Series

The ECS-110-S-4X meets all parametric requirements for direct substitution. The primary distinction is product status and compliance certification, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The ECS-110-S-4X is the direct parametric equivalent for the ECS-110-S-4. All electrical and mechanical specifications are identical. The ECS-110-S-4X is classified as Active product status, ensuring continued availability and supply chain support.

For applications subject to RoHS3 compliance requirements, the ECS-110-S-4X is the appropriate selection, as it carries ROHS3 Compliant certification while the ECS-110-S-4 is RoHS non-compliant. Both parts maintain identical REACH and ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can the ECS-110-S-4X be used as a direct replacement for the ECS-110-S-4?

A: Yes. The ECS-110-S-4X is parametrically equivalent across all electrical and mechanical specifications, including frequency, tolerance, ESR, package format, and operating temperature range. No circuit modifications are required.

Q: What is the primary difference between these two parts?

A: The ECS-110-S-4 is classified as "Not For New Designs" and is RoHS non-compliant. The ECS-110-S-4X is an active product with ROHS3 Compliant certification. Electrical and mechanical performance are identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the HC-49/US package with identical dimensions of 0.447" L x 0.183" W (11.35mm x 4.65mm) and maximum seated height of 0.138" (4.60mm). PCB footprints are interchangeable.

Q: Does the ECS-110-S-4X meet RoHS requirements?

A: Yes. The ECS-110-S-4X carries ROHS3 Compliant certification. The ECS-110-S-4 is RoHS non-compliant.

Q: Are there any differences in moisture sensitivity or handling requirements?

A: No. Both parts have identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special moisture handling precautions are required.