AX7DBF4-1800.0000C Equivalent & Substitute Parts

Part Overview

The AX7DBF4-1800.0000C 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 in an 8-SMD, No Lead surface mount package. The part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components to maintain design continuity and procurement availability.

Substiute Parts

AX7DBF4-1800.0000C

Abracon LLCIn Stock: 819AX7DBF4-1800.0000C 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

Substitute parts for the AX7DBF4-1800.0000C are identified based on the following critical parameters that determine functional compatibility:

Mandatory Matching Parameters:

• Frequency: 1.8 GHz
• Output Type: LVDS
• Function: Enable/Disable
• Package / Case: 8-SMD, No Lead
• Physical Dimensions: 0.276" L x 0.197" W (7.00mm x 5.00mm)
• Height - Seated (Max): 0.075" (1.90mm)
• Frequency Stability: ±25ppm
• Operating Temperature Range: -40°C ~ 85°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters Allowing Substitution:

• Voltage - Supply: 1.8V or 2.5V (dependent on circuit design requirements)
• Current - Supply (Max): 70mA (consistent across variants)
• Current - Supply (Disable) (Max): 65mA (consistent across variants)

Substitute parts maintain identical mechanical, electrical, and compliance characteristics while accommodating different supply voltage requirements within the ClearClock™ AX7 series.

Parameter Comparison

Engineering Selection Recommendations

AX7DCF1-1800.0000C (MFR Recommended Substitute): This part is the manufacturer-recommended substitute for AX7DBF4-1800.0000C. It maintains identical mechanical, frequency, output, and compliance specifications while operating at 1.8V supply voltage instead of 2.5V. Selection of this part is appropriate for designs requiring lower supply voltage operation. Current inventory availability is 1041 units.

AX7DBF1-1800.0000C (Parametric Equivalent): This part is a parametric equivalent maintaining the 2.5V supply voltage of the original AX7DBF4-1800.0000C. All mechanical, electrical, frequency, output, and compliance characteristics are identical. This part is suitable for direct replacement in designs where 2.5V supply voltage is required. Current inventory availability is 1009 units.

Both substitute parts carry ROHS3 compliance and MSL 1 (Unlimited) ratings, matching the original component's environmental and regulatory status.

Frequently Asked Questions (FAQ)

Q: Can AX7DCF1-1800.0000C replace AX7DBF4-1800.0000C in my circuit? A: AX7DCF1-1800.0000C is the manufacturer-recommended substitute. It is mechanically and functionally identical but operates at 1.8V supply voltage. Substitution is valid only if your circuit design supports 1.8V operation. If your design requires 2.5V supply voltage, use AX7DBF1-1800.0000C instead.

Q: What is the difference between the two substitute parts? A: AX7DCF1-1800.0000C operates at 1.8V supply voltage and is the manufacturer-recommended option. AX7DBF1-1800.0000C operates at 2.5V supply voltage, matching the original part's voltage requirement. Both are parametrically equivalent in all other specifications.

Q: Are the physical dimensions identical across all three parts? A: Yes. All three parts share identical package dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) with a maximum seated height of 0.075" (1.90mm). They are all 8-SMD, No Lead packages suitable for the same PCB footprint.

Q: Do all parts meet the same compliance standards? A: Yes. AX7DBF4-1800.0000C, AX7DCF1-1800.0000C, and AX7DBF1-1800.0000C are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for all parts.

Q: What is the frequency stability specification for these oscillators? A: All three parts maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.

Q: Are there any differences in current consumption between the parts? A: No. All three parts have identical maximum supply current of 70mA and maximum disable current of 65mA.