ECS-110.5-S-7S-TR Crystal Equivalent & Substitute Parts

Part Overview

The ECS-110.5-S-7S-TR is a 11.0592 MHz surface mount crystal oscillator in a 4-SOJ package with 9.40mm pitch. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary to support legacy systems, maintain production continuity for existing designs, or transition to current-generation alternatives that meet modern compliance requirements.

Substiute Parts

ECS-110.5-S-7S-TR

ECS Inc.In Stock: 846ECS-110.5-S-7S-TR Datasheet

Current PartRFQ

ECS-110.5-S-7SX-TR

ECS Inc.In Stock: 1361ECS-110.5-S-7SX-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECS-110.5-S-7S-TR is determined by the following critical parameters:

• Frequency Match: 11.0592 MHz (exact match required)
• Frequency Tolerance: ±30ppm (must be maintained or tighter)
• Package Compatibility: 4-SOJ, 9.40mm pitch (physical and electrical footprint)
• Operating Temperature Range: -10°C ~ 70°C (minimum requirement)
• Operating Mode: Fundamental (no overtone operation)
• Load Capacitance: Series configuration

The ECS-110.5-S-7SX-TR meets all substitution criteria with one parameter variation: ESR is reduced from 60 Ohms to 50 Ohms. Lower ESR represents an improvement in electrical performance and does not create incompatibility with existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The ECS-110.5-S-7SX-TR is a direct functional substitute for the ECS-110.5-S-7S-TR. The primary distinction is compliance status: the substitute part is ROHS3 compliant, whereas the main part is RoHS non-compliant. For new production runs or designs requiring regulatory compliance with current environmental standards, the ECS-110.5-S-7SX-TR is the appropriate selection. The reduction in ESR from 60 Ohms to 50 Ohms represents improved electrical performance and does not introduce compatibility issues with existing circuit designs. Both parts share identical frequency, tolerance, package geometry, and operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can the ECS-110.5-S-7SX-TR replace the ECS-110.5-S-7S-TR in existing designs?

A: Yes. The substitute part maintains identical frequency (11.0592 MHz), frequency tolerance (±30ppm), package dimensions (4-SOJ, 9.40mm pitch), and operating temperature range (-10°C ~ 70°C). The lower ESR value (50 Ohms vs. 60 Ohms) is an electrical improvement that does not create incompatibility.

Q: What is the significance of the ESR difference between these parts?

A: ESR (Equivalent Series Resistance) affects crystal oscillator performance characteristics such as startup time and power consumption. A lower ESR value (50 Ohms) generally provides better performance than a higher value (60 Ohms). This change is beneficial and does not require circuit redesign.

Q: Why is the main part marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status. ECS Inc. no longer recommends this part for new product development. The ECS-110.5-S-7SX-TR is the current-generation equivalent and should be used for all new designs.

Q: Are there any compliance differences between these parts?

A: Yes. The ECS-110.5-S-7S-TR is RoHS non-compliant, while the ECS-110.5-S-7SX-TR is ROHS3 compliant. For applications requiring environmental compliance certification, the substitute part is mandatory.

Q: Is the package footprint identical between these parts?

A: Yes. Both parts use the 4-SOJ package with 9.40mm pitch, identical dimensions (12.50mm x 4.60mm), and maximum seated height (3.70mm). No PCB layout modifications are required for substitution.