MA-505 9.8304M-C0:ROHS Equivalent & Substitute Parts

Part Overview

The MA-505 9.8304M-C0:ROHS is a 9.8304 MHz crystal oscillator manufactured by EPSON, designed for surface mount applications requiring fundamental mode operation. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity. The crystal operates at 9.8304 MHz with ±50ppm frequency tolerance and 18pF load capacitance, housed in a 4-SOJ package with 3.30mm pitch.

Substiute Parts

MA-505 9.8304M-C0:ROHS

EPSONIn Stock: 880MA-505 9.8304M-C0:ROHS Datasheet

Current PartRFQ

ABC2-9.8304MHZ-4-T

Abracon LLCIn Stock: 871ABC2-9.8304MHZ-4-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MA-505 9.8304M-C0:ROHS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 9.8304 MHz (exact match required)
• Load Capacitance: 18pF (exact match required)
• Operating Mode: Fundamental (exact match required)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)

Allowable Variation Parameters:

• Frequency Stability: ±30ppm (substitute meets or exceeds specification)
• Frequency Tolerance: ±30ppm (substitute meets or exceeds specification)
• ESR: 45 Ohms (lower ESR is acceptable; substitute value is within acceptable range for circuit operation)
• Operating Temperature Range: -10°C ~ 60°C (substitute range is narrower but acceptable for most applications)
• Package / Case: 4-SMD, No Lead (functionally equivalent surface mount package)
• Physical Dimensions: Minor variations acceptable within PCB layout constraints

The ABC2-9.8304MHZ-4-T qualifies as a direct substitute based on matching all mandatory parameters while meeting or exceeding performance specifications.

Parameter Comparison

Engineering Selection Recommendations

The ABC2-9.8304MHZ-4-T from Abracon LLC is a qualified substitute for the obsolete MA-505 9.8304M-C0:ROHS based on the following engineering criteria:

Functional Equivalence: Both parts operate at identical frequency (9.8304 MHz) with matching load capacitance (18pF) and fundamental mode operation. The substitute meets or exceeds the original part's frequency stability and tolerance specifications.

Regulatory Compliance: Both parts maintain ROHS3 compliance, satisfying environmental and regulatory requirements for current production.

Production Status: The substitute is in active production with confirmed inventory availability (778 Pcs), ensuring long-term supply continuity compared to the obsolete original part.

Performance Considerations: The substitute features lower ESR (45 Ohms versus 80 Ohms), which reduces power dissipation and improves circuit efficiency. The narrower operating temperature range (-10°C ~ 60°C versus -20°C ~ 70°C) must be evaluated against specific application requirements.

Package Transition: PCB layout modification is required due to different package footprints (4-SOJ with 3.30mm pitch versus 4-SMD No Lead). Design validation and re-qualification testing are necessary before production implementation.

Frequently Asked Questions (FAQ)

Q: Can the ABC2-9.8304MHZ-4-T be used as a direct pin-for-pin replacement?

A: No. While both parts are functionally equivalent, they use different package types (4-SOJ versus 4-SMD No Lead). PCB layout modification and re-routing are required. Pin assignments must be verified against both datasheets before implementation.

Q: What is the impact of the lower ESR in the substitute part?

A: Lower ESR (45 Ohms versus 80 Ohms) reduces power dissipation and improves circuit efficiency. This is a performance improvement that does not negatively affect compatibility. Circuit operation remains stable with the substitute part.

Q: Does the narrower operating temperature range of the substitute affect compatibility?

A: The substitute operates from -10°C to 60°C, compared to the original part's -20°C to 70°C range. Compatibility depends on your specific application's temperature requirements. If your design operates within the -10°C to 60°C range, the substitute is fully compatible. Applications requiring extended temperature operation must retain the original specification or identify alternative solutions.

Q: Are there any compliance or certification differences between the two parts?

A: Both parts are ROHS3 compliant. The substitute (ABC2-9.8304MHZ-4-T) is also REACH Affected. Verify REACH compliance requirements for your specific application and region.

Q: What inventory status should I consider for production planning?

A: The original MA-505 part is obsolete with 838 Pcs in stock. The substitute ABC2-9.8304MHZ-4-T is in active production with 778 Pcs available. For long-term production continuity, the active substitute is the recommended choice.

Q: Is design re-qualification required before using the substitute?

A: Yes. Due to package differences and ESR variation, functional testing and thermal validation are recommended to confirm circuit performance with the substitute part before full production release.