AX7DAF1-1800.0000C Equivalent & Substitute Parts

Part Overview

The AX7DAF1-1800.0000C is a 1.8 GHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount oscillator operates at 3.3V 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.

Substiute Parts

AX7DAF1-1800.0000C

Abracon LLCIn Stock: 1119AX7DAF1-1800.0000C 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 AX7DAF1-1800.0000C must maintain compatibility 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 (exact match required)
• Function: Enable/Disable capability (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)

The primary differentiator among qualified substitutes is the supply voltage specification. The AX7DAF1-1800.0000C operates at 3.3V, while alternative models within the same series may operate at different voltage levels. Substitution is permissible only when the substitute part's voltage specification is compatible with the application's power supply design.

Parameter Comparison

Engineering Selection Recommendations

The AX7DBF1-1800.0000C serves as a manufacturer-recommended substitute for the discontinued AX7DAF1-1800.0000C. Both parts maintain identical electrical performance characteristics, physical dimensions, and compliance certifications. The sole distinction is the supply voltage: the substitute operates at 2.5V versus the original part's 3.3V specification.

Selection between these parts depends on the application's power supply architecture. If the design uses a 3.3V supply rail, the original AX7DAF1-1800.0000C specification must be maintained. If the design incorporates a 2.5V supply rail or can accommodate 2.5V operation, the AX7DBF1-1800.0000C provides a direct functional replacement with identical performance metrics.

Both parts carry ROHS3 compliance and MSL 1 (Unlimited) ratings, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the AX7DBF1-1800.0000C replace the AX7DAF1-1800.0000C in any application?

A: Substitution is permissible only if the application's power supply design supports 2.5V operation. The substitute part is not interchangeable in designs that require 3.3V supply voltage.

Q: Are the physical footprints identical between these parts?

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

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity ratings, and operate across the identical temperature range of -40°C to 85°C.

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

A: Both the AX7DAF1-1800.0000C and AX7DBF1-1800.0000C maintain ±25ppm frequency stability across the operating temperature range.

Q: Are there any differences in current consumption between these parts?

A: No. Both parts draw a maximum of 70mA during normal operation and 65mA in disable mode.