AX7MCF4-425.0000C Equivalent & Substitute Parts

Part Overview

The AX7MCF4-425.0000C is a 425 MHz XO (Standard) CML Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount oscillator operates at 1.8V with Enable/Disable functionality and is housed in an 8-SMD, No Lead package measuring 7.00mm x 5.00mm. The part is discontinued at DiGi Electronics, making identification of equivalent alternatives essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Frequency	425 MHz
Output Type	CML
Supply Voltage	1.8V
Function	Enable/Disable
Frequency Stability	±25ppm
Operating Temperature Range	-40°C ~ 85°C
Maximum Supply Current	68mA
Package Type	8-SMD, No Lead
Package Dimensions	7.00mm x 5.00mm x 1.90mm (max height)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the AX7MCF4-425.0000C is determined by strict equivalence across the following critical parameters:

Frequency: 425 MHz (exact match required)
Output Type: CML (exact match required)
Supply Voltage: 1.8V (exact match required)
Function: Enable/Disable (exact match required)
Package Type: 8-SMD, No Lead (exact match required)
Package Dimensions: 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 AX7MCF1-425.0000C meets all substitution criteria as a parametric equivalent within the ClearClock™ AX7 series.

Parameter Comparison

Parameter	AX7MCF4-425.0000C (Main)	AX7MCF1-425.0000C (Substitute)
Manufacturer	Abracon LLC	Abracon LLC
Series	ClearClock™ AX7	ClearClock™ AX7
Frequency	425 MHz	425 MHz
Output Type	CML	CML
Supply Voltage	1.8V	1.8V
Function	Enable/Disable	Enable/Disable
Frequency Stability	±25ppm	±25ppm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Maximum Supply Current	68mA	68mA
Disable Mode Current	67mA	67mA
Package Type	8-SMD, No Lead	8-SMD, No Lead
Package Dimensions	7.00mm x 5.00mm x 1.90mm	7.00mm x 5.00mm x 1.90mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The AX7MCF1-425.0000C is a direct parametric equivalent to the AX7MCF4-425.0000C. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part maintains identical electrical specifications, mechanical dimensions, and thermal operating range. Selection between these parts should be based on availability and procurement lead times, as both are functionally interchangeable within the specified application parameters.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-425.0000C be used as a direct replacement for the AX7MCF4-425.0000C?

A: Yes. Both parts share identical frequency, output type, supply voltage, function, package type, and all critical electrical parameters. They are parametric equivalents within the ClearClock™ AX7 series.

Q: Are there any differences in the package or mounting between these parts?

A: No. Both parts use the same 8-SMD, No Lead package with identical dimensions of 7.00mm x 5.00mm and maximum seated height of 1.90mm. PCB layout and assembly procedures remain unchanged.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AX7MCF4-425.0000C and AX7MCF1-425.0000C are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the frequency stability specification for these oscillators?

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

Q: Are there any current consumption differences between the main part and substitute?

A: No. Both parts draw a maximum supply current of 68mA during normal operation and 67mA in disable mode.

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