AX7MBF4-425.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF4-425.0000C is a 425 MHz XO (Standard) CML Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount crystal oscillator operates at 2.5V 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

AX7MBF4-425.0000C

Abracon LLCIn Stock: 997AX7MBF4-425.0000C Datasheet

Current PartRFQ

AX7MCF1-425.0000C

Abracon LLCIn Stock: 1227AX7MCF1-425.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7MBF4-425.0000C is determined by the following critical parameters:

• Frequency: 425 MHz (exact match required)
• Output Type: CML (exact match required)
• Package / Case: 8-SMD, No Lead (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Function: Enable/Disable (exact match required)
• Base Resonator: Crystal (exact match required)
• Series: ClearClock™ AX7 (exact match required)

The primary variable parameter allowing substitution is Supply Voltage, which may differ while maintaining full functional compatibility within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-425.0000C serves as a direct substitute for the discontinued AX7MBF4-425.0000C. Both parts are manufactured by Abracon LLC within the ClearClock™ AX7 series and maintain identical electrical performance characteristics, mechanical compatibility, and regulatory compliance.

The primary distinction is the supply voltage specification: the substitute operates at 1.8V versus the original 2.5V. This voltage difference must be evaluated against your circuit design requirements. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring equivalent environmental and regulatory suitability.

Current availability of the substitute part (1117 Pcs in stock) provides procurement advantage over the discontinued original part (939 Pcs remaining inventory).

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-425.0000C replace the AX7MBF4-425.0000C in my design?

A: Yes, provided your circuit design accommodates the 1.8V supply voltage requirement. All other electrical and mechanical parameters are identical, including frequency, output type, stability, temperature range, and package specifications.

Q: What is the key difference between these two parts?

A: The supply voltage differs: AX7MBF4-425.0000C operates at 2.5V, while AX7MCF1-425.0000C operates at 1.8V. All other specifications remain unchanged.

Q: Are both parts pin-compatible?

A: Yes. Both parts use the 8-SMD, No Lead package with identical dimensions (7.00mm x 5.00mm x 1.90mm max height), ensuring mechanical and electrical pin compatibility.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating.

Q: Which part should I select for new designs?

A: Selection depends on your power supply architecture. If your system operates at 1.8V, the AX7MCF1-425.0000C is the appropriate choice. If your system requires 2.5V operation, verify availability of the original AX7MBF4-425.0000C or redesign to accommodate the 1.8V substitute.

Q: Is there any performance difference between these oscillators?

A: No. Both parts maintain ±25ppm frequency stability, identical current consumption (68mA max supply, 67mA max disable), and the same operating temperature range (-40°C ~ 85°C).