Crystek Corporation 017057 Crystal - Equivalent & Substitute Parts

Part Overview

The Crystek Corporation 017057 is a 4.09625 MHz surface mount crystal designed for fundamental mode operation. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part is available in limited inventory (685 pcs), and identifying compatible alternatives ensures design continuity and supply chain reliability.

Substiute Parts

017057

Crystek CorporationIn Stock: 761017057 Datasheet

Current PartRFQ

ECS-41-20-5PX-TR

ECS Inc.In Stock: 50523ECS-41-20-5PX-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The ECS-41-20-5PX-TR qualifies as a substitute for the Crystek 017057 based on the following alignment of critical parameters:

• Frequency Compatibility: The substitute operates at 4.096 MHz with ±30ppm tolerance, providing functional equivalence to the 4.09625 MHz specification within acceptable frequency deviation for most applications requiring fundamental mode crystal oscillation.
• Operating Mode: Both parts operate in fundamental mode, ensuring identical circuit behavior.
• Mounting Configuration: Both are surface mount crystals, maintaining PCB layout compatibility.
• Regulatory Compliance: The substitute maintains REACH Unaffected status and EAR99 ECCN classification, matching the original part's compliance profile.
• Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, indicating identical moisture handling requirements.

Parameter Comparison

Engineering Selection Recommendations

The ECS-41-20-5PX-TR serves as the primary substitute for the obsolete Crystek 017057. Selection of this alternative is supported by:

• Active Product Status: The ECS part maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete Crystek component.
• Regulatory Alignment: Both parts share identical REACH and ECCN classifications, eliminating compliance complications in design transitions.
• Moisture Handling: Matching MSL 1 ratings confirm equivalent moisture sensitivity profiles, requiring no changes to storage or handling procedures.
• Fundamental Mode Operation: Identical operating mode ensures direct functional substitution without circuit topology modifications.

Frequently Asked Questions (FAQ)

Q: What is the frequency difference between the Crystek 017057 and the ECS substitute?

A: The Crystek operates at 4.09625 MHz while the ECS-41-20-5PX-TR operates at 4.096 MHz. The difference of approximately 0.06625 MHz falls within the ±30ppm tolerance specification of the ECS part, making it functionally equivalent for applications tolerating this frequency deviation.

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

A: Both parts are surface mount crystals. The ECS substitute is packaged in HC-49/US case format with a maximum seated height of 4.30mm. Verify PCB footprint compatibility with your original design before implementation.

Q: Can the ECS-41-20-5PX-TR be used as a direct replacement without circuit modifications?

A: The substitute operates in fundamental mode matching the original part. However, the ECS part specifies 20pF load capacitance and 150 Ohms ESR. Confirm these electrical characteristics align with your oscillator circuit design before substitution.

Q: What is the operating temperature range for the substitute part?

A: The ECS-41-20-5PX-TR operates across -10°C to 70°C. Verify this range meets your application requirements, as the original Crystek part's operating temperature is not specified in available documentation.

Q: Are there any compliance or regulatory concerns with this substitution?

A: Both parts maintain REACH Unaffected status and EAR99 ECCN classification. No additional compliance documentation is required for this substitution.