ECS-110.5-S-4 11.0592 MHz Crystal Equivalent & Substitute Parts

Part Overview

The ECS-110.5-S-4 is a 11.0592 MHz through-hole crystal oscillator in HC-49/US package, designed for fundamental mode operation with 60 Ohms equivalent series resistance. This part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Finding equivalent substitute parts is necessary for legacy system maintenance, repair applications, and continued production support where this frequency and package configuration remain required.

Substiute Parts

ECS-110.5-S-4

ECS Inc.In Stock: 1344ECS-110.5-S-4 Datasheet

Current PartRFQ

ECS-110.5-S-4X

ECS Inc.In Stock: 2196ECS-110.5-S-4X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECS-110.5-S-4 is determined by strict equivalence across the following critical parameters:

• Frequency: 11.0592 MHz (exact match required)
• Frequency Tolerance: ±30ppm (defines acceptable frequency deviation)
• ESR: 60 Ohms (determines circuit compatibility and load characteristics)
• Operating Mode: Fundamental (specifies harmonic operation)
• Package / Case: HC-49/US (ensures mechanical and electrical fit)
• Mounting Type: Through Hole (confirms PCB assembly compatibility)
• Operating Temperature Range: -10°C ~ 70°C (defines thermal operating envelope)

The ECS-110.5-S-4X qualifies as a parametric equivalent substitute because it maintains identical electrical specifications and physical dimensions while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The ECS-110.5-S-4X is the direct substitute for the ECS-110.5-S-4. Selection is based on the following engineering criteria:

• All electrical parameters are identical, ensuring drop-in compatibility in existing circuit designs
• The ECS-110.5-S-4X maintains Active product status, confirming ongoing availability and manufacturing support
• The substitute part achieves ROHS3 compliance, whereas the original part is RoHS non-compliant, providing regulatory advantage for new production runs or system updates
• Both parts share identical physical dimensions and through-hole mounting configuration, eliminating PCB redesign requirements
• REACH status remains unaffected for both parts

For applications requiring the original ECS-110.5-S-4, the ECS-110.5-S-4X provides equivalent electrical performance with improved compliance and product lifecycle status.

Frequently Asked Questions (FAQ)

Q: Can the ECS-110.5-S-4X be used as a direct replacement for the ECS-110.5-S-4?

A: Yes. The ECS-110.5-S-4X is a parametric equivalent with identical frequency (11.0592 MHz), frequency tolerance (±30ppm), ESR (60 Ohms), operating mode (Fundamental), package (HC-49/US), and temperature range (-10°C ~ 70°C). No circuit modifications are required.

Q: What is the difference between the ECS-110.5-S-4 and ECS-110.5-S-4X?

A: The primary differences are product status and compliance. The ECS-110.5-S-4X is an Active product with ROHS3 compliance, while the ECS-110.5-S-4 is classified as "Not For New Designs" and is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any package or mounting differences between these parts?

A: No. Both parts use the HC-49/US package with through-hole mounting. Physical dimensions (0.447" L x 0.183" W, 11.35mm x 4.65mm) and maximum seated height (0.138" / 4.60mm) are identical.

Q: What does "Not For New Designs" mean for the ECS-110.5-S-4?

A: This designation indicates the part has been superseded in the manufacturer's product line. While existing inventory may be available, the manufacturer recommends using the ECS-110.5-S-4X for new applications and ongoing production.

Q: Is the ECS-110.5-S-4X suitable for legacy system repairs?

A: Yes. The ECS-110.5-S-4X provides full electrical and mechanical compatibility with systems originally designed for the ECS-110.5-S-4, making it suitable for repair and maintenance applications.