AX7DBF1-1800.0000C Equivalent & Substitute Parts

Part Overview

The AX7DBF1-1800.0000C 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 2.5V supply voltage with Enable/Disable functionality, designed for applications requiring stable 1.8 GHz frequency output with LVDS signaling. The part is discontinued at DiGi Electronics, making identification of compatible substitute components essential for ongoing system support and procurement.

Substiute Parts

AX7DBF1-1800.0000C

Abracon LLCIn Stock: 1097AX7DBF1-1800.0000C Datasheet

Current PartRFQ

AX7DCF1-1800.0000C

Abracon LLCIn Stock: 1052AX7DCF1-1800.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7DBF1-1800.0000C is determined by strict equivalence across the following critical parameters:

• Frequency: 1.8 GHz (exact match required)
• Output Type: LVDS (exact match required)
• Package / Case: 8-SMD, No Lead (exact match required)
• Physical Dimensions: 7.00mm x 5.00mm footprint with 1.90mm maximum seated height (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Function: Enable/Disable (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The substitute part AX7DCF1-1800.0000C meets all mechanical and functional equivalence criteria. The primary difference is the supply voltage specification: the substitute operates at 1.8V instead of 2.5V. This voltage difference represents a distinct electrical characteristic that must be evaluated against system requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the AX7DBF1-1800.0000C and AX7DCF1-1800.0000C are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent environmental compliance and handling requirements. Both parts are discontinued at DiGi Electronics, requiring sourcing from alternative inventory channels.

Selection between these parts depends on system power supply architecture. The AX7DBF1-1800.0000C requires a 2.5V supply rail, while the AX7DCF1-1800.0000C operates from a 1.8V supply rail. The choice must align with available voltage rails in the target application. Both parts deliver identical frequency output, stability, and LVDS signaling characteristics across the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the AX7DCF1-1800.0000C replace the AX7DBF1-1800.0000C in all applications?

A: Mechanical and functional compatibility is confirmed. The substitute part is pin-compatible and delivers identical frequency, stability, and LVDS output. Substitution is valid only if the system power supply can provide 1.8V to the oscillator instead of 2.5V. Verify power rail availability before implementation.

Q: What is the significance of the voltage difference between these parts?

A: The AX7DBF1-1800.0000C operates at 2.5V supply voltage, while the AX7DCF1-1800.0000C operates at 1.8V. This difference reflects distinct power supply requirements. Both parts maintain identical frequency stability (±25ppm) and maximum supply current (70mA) across their respective voltage specifications.

Q: Are both parts physically identical?

A: Yes. Both parts use the 8-SMD, No Lead package with identical footprint dimensions (7.00mm x 5.00mm) and maximum seated height (1.90mm). PCB layout and reflow profiles remain unchanged between the two parts.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and carry REACH Unaffected status. Both are classified as MSL 1 (Unlimited) for moisture sensitivity, requiring standard handling procedures without special desiccant storage requirements.

Q: Are both parts currently available?

A: Both parts are discontinued at DiGi Electronics. Current inventory availability must be verified through alternative component distributors or direct manufacturer channels.