AX7MBF3-1800.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF3-1800.0000C is a 1.8 GHz XO (Standard) CML Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount crystal oscillator operates at 2.5V supply voltage 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 necessary for ongoing design support and procurement.

Substiute Parts

AX7MBF3-1800.0000C

Abracon LLCIn Stock: 859AX7MBF3-1800.0000C Datasheet

Current PartRFQ

AX7MCF1-1800.0000C

Abracon LLCIn Stock: 913AX7MCF1-1800.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX7MBF3-1800.0000C is determined by the following critical parameters:

• Frequency: Must be 1.8 GHz
• Output Type: Must be CML
• Package Type: Must be 8-SMD, No Lead
• Package Dimensions: Must be 7.00mm x 5.00mm
• Operating Temperature Range: Must support -40°C ~ 85°C
• Function: Must include Enable/Disable capability

The primary distinction between the main part and identified substitutes is the supply voltage specification. The AX7MBF3-1800.0000C operates at 2.5V, while substitute parts may operate at different voltage levels. Voltage compatibility must be verified against the application circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-1800.0000C serves as a direct substitute for the AX7MBF3-1800.0000C with one critical design consideration: supply voltage. The substitute operates at 1.8V compared to the main part's 2.5V specification. Both parts maintain identical frequency, output type, package configuration, and thermal operating range.

Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The identical Moisture Sensitivity Level (MSL 1) indicates equivalent handling and storage requirements.

Selection between these parts depends solely on the application's power supply architecture. If the circuit provides 2.5V, the AX7MBF3-1800.0000C is the appropriate choice. If the circuit operates at 1.8V, the AX7MCF1-1800.0000C is the suitable alternative.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-1800.0000C replace the AX7MBF3-1800.0000C in all applications?

A: Physical and electrical compatibility exists for frequency, output type, and package specifications. However, the 1.8V supply voltage of the substitute differs from the 2.5V requirement of the main part. Substitution is valid only if the application circuit can operate at 1.8V.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the 8-SMD, No Lead package with dimensions of 7.00mm x 5.00mm and maximum seated height of 1.90mm. PCB layout and footprints are interchangeable.

Q: Do both parts have the same frequency stability?

A: Yes. Both the AX7MBF3-1800.0000C and AX7MCF1-1800.0000C maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.

Q: What is the significance of the Enable/Disable function?

A: Both parts include Enable/Disable functionality, allowing the oscillator output to be controlled via a logic signal. This feature is present in both the main part and substitute, ensuring functional compatibility for applications requiring dynamic oscillator control.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical Moisture Sensitivity Level (MSL 1) ratings. Compliance and handling requirements are equivalent.