CS20-15.360MABJ-UT Equivalent & Substitute Parts

Part Overview

The CS20-15.360MABJ-UT is a 15.36 MHz crystal oscillator manufactured by Citizen Finedevice Co Ltd, designed for surface mount applications requiring fundamental mode operation. This part is classified as obsolete, making identification of compatible substitute components essential for ongoing production and maintenance applications. The crystal operates across a temperature range of -10°C to 60°C with a load capacitance of 18pF and is housed in a 4-SMD, No Lead package measuring 11.60mm x 5.50mm.

Substiute Parts

CS20-15.360MABJ-UT

Citizen Finedevice Co LtdIn Stock: 827CS20-15.360MABJ-UT Datasheet

Current PartRFQ

ABC2-15.360MHZ-4-T

Abracon LLCIn Stock: 964ABC2-15.360MHZ-4-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS20-15.360MABJ-UT is determined by strict alignment of the following critical parameters:

• Frequency: 15.36 MHz (exact match required)
• Frequency Tolerance: ±30ppm (matching specification)
• Load Capacitance: 18pF (exact match required)
• Operating Mode: Fundamental (exact match required)
• Operating Temperature Range: -10°C to 60°C (minimum coverage required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Mounting Type: Surface Mount (exact match required)

The ABC2-15.360MHZ-4-T manufactured by Abracon LLC meets all critical substitution criteria. While the ESR differs (30 Ohms versus 50 Ohms), this represents an improvement in performance characteristics and does not prevent functional substitution. Physical dimensions show minor variations within acceptable tolerances for the same package classification.

Parameter Comparison

Engineering Selection Recommendations

The ABC2-15.360MHZ-4-T is the qualified substitute for the obsolete CS20-15.360MABJ-UT. Selection is based on:

• Active product status ensuring continued availability and manufacturing support
• ROHS3 compliance meeting current regulatory requirements
• Identical frequency, load capacitance, operating mode, and temperature range specifications
• Compatible 4-SMD, No Lead package with negligible dimensional variation
• Lower ESR value (30 Ohms) providing improved performance characteristics compared to the original specification

The substitute part is suitable for direct replacement in applications where the original CS20-15.360MABJ-UT was specified.

Frequently Asked Questions (FAQ)

Q: Can the ABC2-15.360MHZ-4-T replace the CS20-15.360MABJ-UT in existing designs?

A: Yes. Both parts share identical frequency (15.36 MHz), load capacitance (18pF), operating mode (Fundamental), temperature range (-10°C to 60°C), and package type (4-SMD, No Lead). The substitute part meets all functional requirements for direct replacement.

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

A: The ABC2-15.360MHZ-4-T has an ESR of 30 Ohms compared to 50 Ohms in the original part. Lower ESR represents improved performance and does not create compatibility issues. The substitute part will function correctly in circuits designed for the original specification.

Q: Are there physical compatibility concerns with the dimensional differences?

A: No. The length difference (11.80mm versus 11.60mm) and height difference (2.00mm versus 2.20mm) are within acceptable tolerances for the 4-SMD, No Lead package classification. Both parts are compatible with standard surface mount assembly processes and PCB layouts designed for this package type.

Q: Why is the original part classified as obsolete?

A: The CS20-15.360MABJ-UT is no longer in active production by Citizen Finedevice Co Ltd. The ABC2-15.360MHZ-4-T from Abracon LLC is an active product with ongoing manufacturing support and availability.

Q: Does the ROHS3 compliance of the substitute part affect compatibility?

A: No. ROHS3 compliance indicates the substitute part meets current environmental and regulatory standards. This is an advantage for new designs and ongoing production requiring compliance with modern regulations.