AX7DAF3-148.5000C Equivalent & Substitute Parts

Part Overview

The AX7DAF3-148.5000C is a 148.5 MHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC, 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 currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

AX7DAF3-148.5000C

Abracon LLCIn Stock: 1069AX7DAF3-148.5000C Datasheet

Current PartRFQ

AX7DAF1-148.5000

Abracon LLCIn Stock: 1188AX7DAF1-148.5000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AX7DAF3-148.5000C is determined by strict equivalence across the following critical parameters:

• Frequency: 148.5 MHz (exact match required)
• Output Type: LVDS (no alternative output types acceptable)
• Supply Voltage: 3.3V (no voltage variation permitted)
• Function: Enable/Disable capability (required for circuit compatibility)
• Package Type: 8-SMD, No Lead (mechanical and electrical interface requirement)
• Operating Temperature Range: -40°C ~ 85°C (minimum specification)
• Frequency Stability: ±25ppm (performance specification)

The AX7DAF1-148.5000 meets all substitution criteria as a parametric equivalent within the same ClearClock™ AX7 series, differing only in packaging format (Strip vs. standard packaging) and product status (Active vs. Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The AX7DAF1-148.5000 is the direct parametric equivalent for the discontinued AX7DAF3-148.5000C. Both parts are manufactured by Abracon LLC within the same ClearClock™ AX7 series and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction is product status: the AX7DAF1-148.5000 maintains Active status with current inventory availability, while the AX7DAF3-148.5000C is discontinued. Both parts carry ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements.

The packaging format difference (Strip vs. standard) does not affect electrical performance or PCB-level compatibility, as both use the same 8-SMD, No Lead package configuration with identical physical dimensions and pinout.

Frequently Asked Questions (FAQ)

Q: Can the AX7DAF1-148.5000 be used as a direct replacement for the AX7DAF3-148.5000C?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, frequency, output type, supply voltage, and package configuration. The only differences are product status and packaging format, neither of which affects circuit functionality.

Q: What is the difference between the packaging formats listed?

A: The AX7DAF3-148.5000C uses standard packaging, while the AX7DAF1-148.5000 uses Strip packaging. Both formats contain the same 8-SMD, No Lead component with identical physical dimensions and electrical characteristics. The packaging format affects only the delivery and handling method, not the component itself.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical RoHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity ratings. They meet the same regulatory and environmental standards.

Q: Why is the AX7DAF3-148.5000C discontinued?

A: Product discontinuation is a manufacturer decision typically driven by market demand, product line consolidation, or transition to newer variants. The AX7DAF1-148.5000 remains in active production and provides full functional equivalence.

Q: What are the critical parameters that must match for substitution?

A: Frequency (148.5 MHz), output type (LVDS), supply voltage (3.3V), Enable/Disable function, package type (8-SMD, No Lead), operating temperature range (-40°C ~ 85°C), and frequency stability (±25ppm) must all remain unchanged for electrical and mechanical compatibility.