AX7MBF4-1000.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF4-1000.0000C is a 1 GHz XO (Standard) CML Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount oscillator operates at 2.5V supply voltage with Enable/Disable functionality and is housed in an 8-SMD, No Lead package. The part is discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

AX7MBF4-1000.0000C

Abracon LLCIn Stock: 974AX7MBF4-1000.0000C Datasheet

Current PartRFQ

AX7MCF1-1000.0000C

Abracon LLCIn Stock: 914AX7MCF1-1000.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7MBF4-1000.0000C is determined by the following critical parameters:

• Frequency: Must be 1 GHz
• Output Type: Must be CML
• Package Type: Must be 8-SMD, No Lead
• Package Dimensions: Must be 7.00mm x 5.00mm
• Function: Must include Enable/Disable capability
• Frequency Stability: Must be ±25ppm
• Operating Temperature Range: Must be -40°C ~ 85°C
• RoHS Compliance: Must be ROHS3 Compliant

The AX7MCF1-1000.0000C qualifies as a manufacturer-recommended substitute. While the supply voltage differs (1.8V versus 2.5V), all other electrical and mechanical parameters remain identical, including frequency, output type, stability, temperature range, and package specifications. The voltage difference represents a design variation within the same product family rather than a functional incompatibility at the component level.

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-1000.0000C is the manufacturer-recommended substitute for the discontinued AX7MBF4-1000.0000C. Both parts maintain identical mechanical compatibility, frequency performance, and regulatory compliance. The primary design consideration is the supply voltage difference: the substitute operates at 1.8V instead of 2.5V. This voltage variation must be evaluated within the context of the application's power supply architecture and signal integrity requirements. Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating, ensuring equivalent environmental and regulatory standing.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-1000.0000C be used as a direct replacement for the AX7MBF4-1000.0000C?

A: The AX7MCF1-1000.0000C is mechanically and functionally compatible with identical package dimensions, frequency, output type, and stability specifications. The supply voltage difference (1.8V versus 2.5V) must be accommodated by the circuit design. Verify that your power supply and signal conditioning circuitry support 1.8V operation before implementation.

Q: Are there any package or footprint differences between these parts?

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

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AX7MBF4-1000.0000C and AX7MCF1-1000.0000C are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the frequency stability specification for both parts?

A: Both parts maintain ±25ppm frequency stability across the -40°C to 85°C operating temperature range.

Q: Are the current consumption specifications identical?

A: Yes. Both parts specify 68mA maximum supply current and 67mA maximum disable current, regardless of the voltage difference.