Crystek Corporation 017058 6.76438 MHz Crystal Equivalent & Substitute Parts

Part Overview

The Crystek Corporation 017058 is a 6.76438 MHz surface mount crystal designed for fundamental mode operation. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The crystal operates at a specific frequency of 6.76438 MHz and is packaged for surface mount assembly.

Substiute Parts

017058

Crystek CorporationIn Stock: 1088017058 Datasheet

Current PartRFQ

HCM496764380ABJT

Citizen Finedevice Co LtdIn Stock: 1086HCM496764380ABJT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Crystek 017058 is based on the following critical parameters:

• Frequency Match: 6.76438 MHz exact frequency requirement
• Operating Mode: Fundamental mode operation
• Mounting Type: Surface mount configuration
• Regulatory Compliance: REACH Unaffected and EAR99 classification maintained

The substitute part HCM496764380ABJT from Citizen Finedevice Co Ltd meets these core substitution criteria. This part maintains the identical frequency specification and fundamental operating mode while providing active product status with full technical specifications.

Parameter Comparison

Engineering Selection Recommendations

The Citizen Finedevice HCM496764380ABJT serves as a direct substitute for the obsolete Crystek 017058. The substitute part is classified as active product status, ensuring continued availability and supply chain reliability. Both parts maintain identical regulatory compliance with REACH Unaffected designation and EAR99 export classification. The substitute provides complete technical specifications including frequency tolerance, load capacitance, and operating temperature range, which are not documented for the original part. The HC-49/US package format and MSL 1 rating ensure compatibility with standard surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Why is a substitute needed for the Crystek 017058? A: The Crystek 017058 is classified as obsolete. The Citizen HCM496764380ABJT provides an active alternative with identical frequency and operating mode specifications.

Q: Are the frequency specifications identical between the two parts? A: Both parts operate at 6.76438 MHz in fundamental mode. The substitute specifies ±30ppm frequency tolerance, which was not documented for the original part.

Q: What is the load capacitance requirement for the substitute? A: The Citizen HCM496764380ABJT specifies 18pF load capacitance with 100 Ohms ESR. Circuit design must accommodate these electrical characteristics.

Q: Are there packaging differences between the parts? A: The substitute is specified as HC-49/US package format with dimensions 0.449" L x 0.185" W (11.40mm x 4.70mm) and maximum seated height of 0.169" (4.30mm). Original packaging specifications were not provided.

Q: Do both parts meet the same regulatory requirements? A: Both parts are REACH Unaffected and classified as EAR99, maintaining identical regulatory compliance status.

Q: What is the operating temperature range for the substitute? A: The Citizen HCM496764380ABJT operates from -10°C to 60°C. Original operating temperature specifications were not documented.