AX7MCF3-491.5200C Equivalent & Substitute Parts

Part Overview

The AX7MCF3-491.5200C is a 491.52 MHz XO (Standard) CML Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount oscillator operates at 1.8V with Enable/Disable functionality and is housed in an 8-SMD, No Lead package measuring 7.00mm x 5.00mm. The part is discontinued at DiGi Electronics, making identification of equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

AX7MCF3-491.5200C

Abracon LLCIn Stock: 991AX7MCF3-491.5200C Datasheet

Current PartRFQ

AX7MCF1-491.5200C

Abracon LLCIn Stock: 838AX7MCF1-491.5200C Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AX7MCF3-491.5200C is determined by strict equivalence across the following critical parameters:

• Frequency: 491.52 MHz (exact match required)
• Output Type: CML (no alternative output types acceptable)
• Supply Voltage: 1.8V (no voltage variation permitted)
• Function: Enable/Disable capability (required)
• Package Type: 8-SMD, No Lead (mechanical and electrical compatibility)
• Operating Temperature Range: -40°C ~ 85°C (minimum requirement)
• Frequency Stability: ±25ppm (maximum tolerance)

The AX7MCF1-491.5200C qualifies as a parametric equivalent based on identical specifications across all critical electrical and mechanical parameters. Both parts belong to the Abracon ClearClock™ AX7 series and share the same frequency, output type, voltage, function, package configuration, and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the AX7MCF3-491.5200C and AX7MCF1-491.5200C are discontinued at DiGi Electronics. Selection between these parts should be based on current inventory availability and procurement lead times. Both parts maintain identical electrical performance specifications, package configuration, and regulatory compliance status (ROHS3 Compliant, REACH Unaffected). The AX7MCF1-491.5200C currently shows 825 units in stock compared to 944 units for the AX7MCF3-491.5200C. For applications requiring this specific frequency and output type, either part provides equivalent functionality with no design modifications required.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-491.5200C be used as a direct replacement for the AX7MCF3-491.5200C?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, output type, supply voltage, frequency, function, and package configuration. No circuit modifications are required for substitution.

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

A: No. Both parts use the same 8-SMD, No Lead package with identical dimensions (7.00mm x 5.00mm) and maximum seated height (1.90mm). PCB layout and assembly processes remain unchanged.

Q: What determines compatibility for this oscillator frequency?

A: Compatibility is determined by exact frequency match (491.52 MHz), CML output type, 1.8V supply voltage, Enable/Disable function capability, and 8-SMD, No Lead package type. Deviations in any of these parameters require design re-evaluation.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the significance of the Moisture Sensitivity Level (MSL) rating?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special moisture control requirements.