AX7MBF1-1000.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF1-1000.0000C is a 1 GHz XO (Standard) CML Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount crystal oscillator operates at 2.5V supply voltage with Enable/Disable functionality, 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

AX7MBF1-1000.0000C

Abracon LLCIn Stock: 846AX7MBF1-1000.0000C Datasheet

Current PartRFQ

AX7MCF1-1000.0000C

Abracon LLCIn Stock: 914AX7MCF1-1000.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AX7MBF1-1000.0000C are identified based on the following critical parameters that determine functional and mechanical compatibility:

• Frequency: 1 GHz (exact match required)
• Output Type: CML (exact match required)
• Function: Enable/Disable (exact match required)
• Package / Case: 8-SMD, No Lead (exact match required)
• Physical Dimensions: 0.276" L x 0.197" W, Height 0.075" max (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Series: ClearClock™ AX7 (same manufacturer series)

The primary difference between the main part and its substitute is the supply voltage specification. The AX7MCF1-1000.0000C operates at 1.8V instead of 2.5V, which represents a voltage-compatible alternative within the same product family and package specification.

Parameter Comparison

Engineering Selection Recommendations

Both the AX7MBF1-1000.0000C and AX7MCF1-1000.0000C are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Both parts maintain MSL Level 1 (Unlimited) moisture sensitivity classification, indicating no special moisture handling requirements during storage or assembly.

Selection between these parts depends on circuit power supply architecture. The AX7MBF1-1000.0000C requires a 2.5V supply rail, while the AX7MCF1-1000.0000C operates from a 1.8V supply rail. Both parts are discontinued at DiGi Electronics; substitute selection should be based on available inventory and power supply compatibility with the target application.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-1000.0000C replace the AX7MBF1-1000.0000C in existing designs?

A: Direct substitution is possible only if the circuit design includes a 1.8V supply rail available at the oscillator location. The 1.8V supply requirement of the substitute part differs from the 2.5V requirement of the original part. Circuit modification may be necessary.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the same 8-SMD, No Lead package with dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) and maximum seated height of 0.075" (1.90mm). PCB footprints are interchangeable.

Q: Do both parts have the same frequency stability specification?

A: Yes. Both the AX7MBF1-1000.0000C and AX7MCF1-1000.0000C maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.

Q: What is the difference in current consumption between these parts?

A: Both parts specify a maximum supply current of 68mA and maximum disable current of 67mA. Current consumption characteristics are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified as MSL Level 1 (Unlimited). Regulatory and environmental compliance status is equivalent.