CS20-14.7456MABJ-UT Equivalent & Substitute Parts

Part Overview

The CS20-14.7456MABJ-UT is a 14.7456 MHz crystal oscillator manufactured by Citizen Finedevice Co Ltd, designed for surface mount applications requiring fundamental mode operation. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain supply chain continuity for new designs and production requirements.

Substiute Parts

CS20-14.7456MABJ-UT

Citizen Finedevice Co LtdIn Stock: 1227CS20-14.7456MABJ-UT Datasheet

Current PartRFQ

ABC2-14.7456MHZ-4-T

Abracon LLCIn Stock: 919ABC2-14.7456MHZ-4-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS20-14.7456MABJ-UT is determined by strict equivalence across the following critical parameters:

Frequency matching at 14.7456 MHz is mandatory. Load capacitance of 18pF must be maintained to ensure circuit compatibility without requiring oscillator circuit redesign. Operating mode must remain fundamental. The 4-SMD, No Lead package format and surface mount configuration must be preserved for mechanical and electrical compatibility. Operating temperature range of -10°C ~ 60°C establishes the thermal envelope for substitution.

The ABC2-14.7456MHZ-4-T from Abracon LLC meets all substitution criteria. This part maintains identical frequency, load capacitance, operating mode, package configuration, and temperature range specifications.

Parameter Comparison

Engineering Selection Recommendations

The ABC2-14.7456MHZ-4-T is the qualified substitute for the obsolete CS20-14.7456MABJ-UT. Selection is based on the following factors:

Product status: The substitute part is active and currently in production, ensuring long-term availability. The main part is obsolete and subject to supply discontinuation.

Electrical equivalence: Both parts operate at identical frequency, tolerance, load capacitance, and temperature range. The substitute exhibits lower ESR (35 Ohms versus 50 Ohms), which represents an improvement in circuit performance characteristics.

Compliance: The substitute part is ROHS3 compliant and REACH affected, meeting current regulatory requirements for electronic components in regulated markets.

Physical compatibility: Dimensional variations are minimal. The substitute is 0.008" (0.20mm) longer and 0.008" (0.20mm) shorter in height, remaining within typical PCB layout tolerances for 4-SMD packages.

Frequently Asked Questions (FAQ)

Q: Can the ABC2-14.7456MHZ-4-T be used as a direct replacement without circuit modification?

A: Yes. Both parts maintain identical frequency, load capacitance, operating mode, and temperature range. The lower ESR of the substitute part does not require circuit redesign and represents improved performance.

Q: Are there dimensional compatibility concerns?

A: Dimensional differences are negligible. The substitute is 0.20mm taller in length and 0.20mm shorter in height. These variations fall within standard PCB layout tolerances for 4-SMD, No Lead packages and do not affect mechanical fit or electrical performance.

Q: What is the impact of the ESR difference?

A: The substitute part has lower ESR (35 Ohms versus 50 Ohms). Lower ESR reduces power dissipation and improves frequency stability, representing a performance enhancement over the original part.

Q: Are there compliance differences between the parts?

A: The substitute part is ROHS3 compliant and REACH affected, meeting current regulatory standards. The original part status for these certifications is not specified. For applications requiring specific compliance documentation, the substitute part provides explicit certification.

Q: What is the packaging difference?

A: The substitute part is supplied in Tape & Reel (TR) format, standard for production quantities. The original part packaging is not specified. Tape & Reel format is compatible with automated assembly equipment.