AX7MBF3-1000.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF3-1000.0000C is a 1 GHz XO (Standard) CML Oscillator manufactured by Abracon LLC, 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 measuring 7.00mm x 5.00mm. The product is discontinued at DiGi Electronics. Substitute parts are necessary to maintain design continuity and ensure component availability for production and replacement applications.

Substiute Parts

AX7MBF3-1000.0000C

Abracon LLCIn Stock: 820AX7MBF3-1000.0000C 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 AX7MBF3-1000.0000C are identified based on the following critical parameters that determine functional 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)
• Size / Dimension: 7.00mm x 5.00mm (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)

The primary difference between the main part and substitute parts lies in the supply voltage specification. Substitute parts may operate at different voltage levels while maintaining all other electrical and mechanical parameters. This allows for voltage-flexible designs where the oscillator can be integrated into systems with alternative power supply architectures.

Parameter Comparison

Engineering Selection Recommendations

Both the main part AX7MBF3-1000.0000C and the substitute part AX7MCF1-1000.0000C are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity classification, indicating no special moisture handling requirements during storage or assembly.

The AX7MCF1-1000.0000C operates at 1.8V supply voltage compared to the 2.5V specification of the main part. Selection between these parts depends on the power supply architecture of the target application. The 1.8V variant is suitable for low-voltage system designs, while the 2.5V variant accommodates higher voltage rail applications. Both parts are discontinued at DiGi Electronics; component selection should be based on current inventory availability and system voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-1000.0000C replace the AX7MBF3-1000.0000C in all applications?

A: The AX7MCF1-1000.0000C is a functional substitute only in applications where the system power supply operates at 1.8V. The substitute part maintains identical frequency, output type, package, and thermal specifications. Direct substitution is not possible in systems designed for 2.5V supply voltage without circuit modification.

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 and assembly processes are interchangeable.

Q: What is the significance of the ±25ppm frequency stability specification?

A: The ±25ppm frequency stability specification defines the maximum frequency deviation across the operating temperature range of -40°C to 85°C. Both the main part and substitute maintain this specification, ensuring consistent timing performance in temperature-variable environments.

Q: Do both parts require special handling during storage or assembly?

A: No. Both parts carry MSL Level 1 (Unlimited) classification, indicating no moisture sensitivity restrictions. Standard component storage and handling procedures are applicable.

Q: What does the Enable/Disable function provide?

A: The Enable/Disable function allows the oscillator output to be controlled via an external signal, enabling power management and dynamic frequency control in the host system. Both parts provide this functionality.