AX7DAF3-1800.0000C Equivalent & Substitute Parts

Part Overview

The AX7DAF3-1800.0000C is a 1.8 GHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount crystal oscillator operates at 3.3V supply voltage with Enable/Disable functionality, designed for applications requiring stable 1.8 GHz frequency output. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives to maintain design continuity and supply chain reliability.

Substiute Parts

AX7DAF3-1800.0000C

Abracon LLCIn Stock: 690AX7DAF3-1800.0000C Datasheet

Current PartRFQ

AX7DBF1-1800.0000C

Abracon LLCIn Stock: 1097AX7DBF1-1800.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AX7DAF3-1800.0000C are identified based on the following critical parameters that determine functional equivalence:

Mandatory Matching Parameters:

• Frequency: 1.8 GHz
• Output Type: LVDS
• Base Resonator: Crystal
• Type: XO (Standard)
• Function: Enable/Disable
• Package / Case: 8-SMD, No Lead
• Size / Dimension: 0.276" L x 0.197" W (7.00mm x 5.00mm)
• Operating Temperature Range: -40°C ~ 85°C
• Frequency Stability: ±25ppm
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Variable Parameters (Allowable Differences):

• Supply Voltage: May differ based on circuit design requirements
• Current consumption specifications may vary within acceptable operational limits

Parameter Comparison

Engineering Selection Recommendations

The AX7DBF1-1800.0000C serves as a direct functional substitute for the discontinued AX7DAF3-1800.0000C. Both parts are manufactured by Abracon LLC within the same ClearClock™ AX7 series and share identical electrical and mechanical specifications with one exception: supply voltage.

The primary difference is the supply voltage requirement: AX7DAF3-1800.0000C operates at 3.3V, while AX7DBF1-1800.0000C operates at 2.5V. This difference is significant and requires circuit-level evaluation. If your design currently uses 3.3V supply rails, the substitute part necessitates either voltage regulation or circuit redesign to accommodate 2.5V operation.

Both parts maintain ROHS3 compliance, MSL Level 1 rating, and identical frequency stability (±25ppm), operating temperature range (-40°C ~ 85°C), and package specifications (8-SMD, No Lead, 7.00mm x 5.00mm). Current consumption characteristics remain constant across both variants.

Frequently Asked Questions (FAQ)

Q: Can AX7DBF1-1800.0000C directly replace AX7DAF3-1800.0000C without circuit modifications?

A: Direct pin-for-pin replacement is possible only if your circuit design accommodates 2.5V supply voltage operation. If your design requires 3.3V supply, voltage regulation or circuit redesign is necessary.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use 8-SMD, No Lead packaging with identical dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) and maximum seated height of 0.075" (1.90mm). PCB footprints are compatible.

Q: Do both parts meet the same compliance standards?

A: Yes. Both AX7DAF3-1800.0000C and AX7DBF1-1800.0000C are ROHS3 compliant with MSL Level 1 rating and REACH Unaffected status.

Q: What is the frequency stability specification for both parts?

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

Q: Are current consumption specifications the same?

A: Yes. Maximum supply current is 70mA for both parts, with 65mA maximum current in Disable mode.