AX7MCF3-1800.0000C Equivalent & Substitute Parts

Part Overview

The AX7MCF3-1800.0000C is a 1.8 GHz XO (Standard) CML oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount crystal oscillator operates at 1.8V 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.

Key Parameters

Parameter	Value
Frequency	1.8 GHz
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)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AX7MCF3-1800.0000C are identified based on strict parametric equivalence across the following critical criteria:

Frequency: 1.8 GHz (exact match required)
Output Configuration: CML (exact match required)
Supply Voltage: 1.8V (exact match required)
Enable/Disable Function: Present (exact match required)
Package Type: 8-SMD, No Lead (exact match required)
Operating Temperature Range: -40°C ~ 85°C (exact match required)
Frequency Stability: ±25ppm (exact match required)
RoHS Compliance: ROHS3 Compliant (exact match required)

The AX7MCF1-1800.0000C meets all substitution criteria and is classified as a parametric equivalent within the ClearClock™ AX7 series.

Parameter Comparison

Parameter	AX7MCF3-1800.0000C	AX7MCF1-1800.0000C
Manufacturer	Abracon LLC	Abracon LLC
Series	ClearClock™ AX7	ClearClock™ AX7
Frequency	1.8 GHz	1.8 GHz
Output Type	CML	CML
Supply Voltage	1.8V	1.8V
Enable/Disable Function	Yes	Yes
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	7.00mm x 5.00mm
Maximum Seated Height	1.90mm	1.90mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The AX7MCF1-1800.0000C is a direct parametric equivalent to the AX7MCF3-1800.0000C. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. The substitute part maintains identical electrical specifications, thermal performance, and physical package dimensions, supporting seamless integration into existing designs. Current inventory availability of the AX7MCF1-1800.0000C (814 Pcs) provides procurement continuity for applications requiring 1.8 GHz CML oscillators with 1.8V supply and enable/disable control.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-1800.0000C be used as a direct replacement for the AX7MCF3-1800.0000C?

A: Yes. Both parts are parametric equivalents with identical frequency, output type, supply voltage, package configuration, and performance specifications. No circuit modifications are required.

Q: Are there any differences in package dimensions between these parts?

A: No. Both parts use the same 8-SMD, No Lead package with dimensions of 7.00mm x 5.00mm and maximum seated height of 1.90mm.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AX7MCF3-1800.0000C and AX7MCF1-1800.0000C are ROHS3 compliant, REACH unaffected, and classified as EAR99.

Q: What is the moisture sensitivity level for these oscillators?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

Q: Are the current consumption specifications identical?

A: Yes. Both parts have a maximum supply current of 68mA and a disable mode current of 67mA.

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