AX7DBF3-1800.0000C Equivalent & Substitute Parts

Part Overview

The AX7DBF3-1800.0000C is a 1.8 GHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This component operates at 2.5V supply voltage with Enable/Disable functionality, housed in an 8-SMD, No Lead package. The part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

AX7DBF3-1800.0000C

Abracon LLCIn Stock: 954AX7DBF3-1800.0000C Datasheet

Current PartRFQ

AX7DCF1-1800.0000C

Abracon LLCIn Stock: 1052AX7DCF1-1800.0000C Datasheet

MFR RecommendedRFQ

AX7DBF1-1800.0000C

Abracon LLCIn Stock: 1097AX7DBF1-1800.0000C Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AX7DBF3-1800.0000C is determined by the following critical parameters:

• Frequency: 1.8 GHz (exact match required)
• Output Type: LVDS (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)
• Supply Voltage: 2.5V (primary specification; 1.8V variants available as alternatives)
• Function: Enable/Disable (exact match required)

Two substitute parts are identified within the ClearClock™ AX7 series:

1. AX7DCF1-1800.0000C (MFR Recommended): Differs only in supply voltage (1.8V vs. 2.5V). All other electrical and mechanical parameters are identical.

2. AX7DBF1-1800.0000C (Parametric Equivalent): Maintains identical specifications including 2.5V supply voltage. Differs only in internal design variant designation.

Parameter Comparison

Engineering Selection Recommendations

AX7DBF1-1800.0000C is the primary parametric equivalent for direct replacement. This part maintains identical electrical specifications and supply voltage (2.5V) as the original AX7DBF3-1800.0000C, with only internal design variant differences. Both parts are ROHS3 compliant, MSL 1 rated, and REACH unaffected, ensuring regulatory compliance continuity.

AX7DCF1-1800.0000C is the manufacturer-recommended alternative when supply voltage flexibility exists in the design. This part operates at 1.8V instead of 2.5V while maintaining all other critical parameters: 1.8 GHz frequency, LVDS output, ±25ppm stability, and identical package dimensions. Selection of this variant requires confirmation that the system power supply and signal chain support 1.8V operation.

Both substitute parts are available in higher inventory quantities (1041 Pcs and 1009 Pcs respectively) compared to the original part (887 Pcs), improving procurement reliability.

Frequently Asked Questions (FAQ)

Q: Can AX7DCF1-1800.0000C replace AX7DBF3-1800.0000C directly without circuit modification?

A: Direct replacement requires system-level voltage compatibility. The AX7DCF1-1800.0000C operates at 1.8V supply versus the original 2.5V. If the design power supply and signal conditioning circuits are rated for 1.8V operation, substitution is valid. If the system is fixed at 2.5V, use AX7DBF1-1800.0000C instead.

Q: What is the difference between AX7DBF1-1800.0000C and AX7DBF3-1800.0000C?

A: Both parts share identical electrical and mechanical specifications, including 2.5V supply voltage, 1.8 GHz frequency, LVDS output, and 8-SMD package. The designation difference (DBF1 vs. DBF3) reflects internal design variants within the ClearClock™ AX7 series. Substitution is direct with no circuit changes required.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 8-SMD, No Lead package with identical 7.00mm x 5.00mm x 1.90mm dimensions. PCB footprints and solder reflow profiles are compatible across all variants.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. Both AX7DCF1-1800.0000C and AX7DBF1-1800.0000C are ROHS3 compliant, MSL 1 rated, and REACH unaffected, matching the original part's regulatory status.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring 2.5V operation, AX7DBF1-1800.0000C is the parametric equivalent. For designs with flexible voltage requirements, AX7DCF1-1800.0000C at 1.8V may offer power efficiency benefits while maintaining all frequency and stability specifications.