AX7MBF2-1000.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF2-1000.0000C 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

AX7MBF2-1000.0000C

Abracon LLCIn Stock: 1186AX7MBF2-1000.0000C Datasheet

Current PartRFQ

AX7MCF1-1000.0000C

Abracon LLCIn Stock: 914AX7MCF1-1000.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7MBF2-1000.0000C is determined by the following critical parameters that must remain constant or compatible:

• Frequency: 1 GHz (exact match required)
• Output Type: CML (exact match required)
• Package / Case: 8-SMD, No Lead (exact match required)
• Size / Dimension: 0.276" L x 0.197" W (7.00mm x 5.00mm) (exact match required)
• Function: Enable/Disable (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (exact match required)

The AX7MCF1-1000.0000C qualifies as a substitute part because it maintains all critical electrical and mechanical parameters. The primary difference is the supply voltage specification: the substitute operates at 1.8V instead of 2.5V. This voltage difference requires circuit-level evaluation to determine compatibility with the original design's power supply architecture.

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-1000.0000C is electrically and mechanically compatible with the AX7MBF2-1000.0000C for applications where the 1.8V supply voltage is acceptable. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical regulatory classifications (EAR99, HTSUS 8542.39.0001).

Selection between these parts depends on the power supply architecture of the target application. The 2.5V variant (AX7MBF2-1000.0000C) is discontinued; the 1.8V variant (AX7MCF1-1000.0000C) remains available with 816 units in stock. For new designs or redesigns, the 1.8V part is the appropriate selection from the ClearClock™ AX7 series at 1 GHz with CML output.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-1000.0000C directly replace the AX7MBF2-1000.0000C in an existing design?

A: Direct replacement requires that the circuit design supports 1.8V operation. The substitute part maintains identical frequency (1 GHz), output type (CML), package (8-SMD, No Lead), and physical dimensions. If the original design's power supply and signal conditioning circuits are rated for 1.8V operation, the substitute is compatible. If the design requires 2.5V specifically, circuit modification is necessary.

Q: Are the package and mounting characteristics identical?

A: Yes. Both parts use the 8-SMD, No Lead package with identical dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) and maximum seated height of 0.075" (1.90mm). PCB layout and assembly processes remain unchanged.

Q: What is the significance of the frequency stability specification?

A: Both parts specify ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range. This parameter is identical and does not differentiate the parts for substitution purposes.

Q: Are there compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8542.39.0001. Regulatory and environmental compliance is equivalent.

Q: What is the current consumption difference?

A: Both parts specify 68mA maximum supply current and 67mA maximum disable current. Current consumption is identical despite the voltage difference.