AX7DAF4-148.5000C Equivalent & Substitute Parts

Part Overview

The AX7DAF4-148.5000C 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 alternatives essential for ongoing design support and procurement.

Substiute Parts

AX7DAF4-148.5000C

Abracon LLCIn Stock: 1066AX7DAF4-148.5000C Datasheet

Current PartRFQ

AX7DAF1-148.5000

Abracon LLCIn Stock: 1188AX7DAF1-148.5000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7DAF4-148.5000C is determined by strict equivalence across the following critical parameters:

• Frequency: 148.5 MHz (exact match required)
• Output Type: LVDS (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Package Type: 8-SMD, No Lead (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)

The AX7DAF1-148.5000 meets all substitution criteria as a parametric equivalent. The primary distinction between these parts is packaging format: the main part (AX7DAF4) uses standard packaging, while the substitute (AX7DAF1) is supplied in Strip packaging. This packaging difference does not affect electrical performance or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The AX7DAF1-148.5000 is a direct parametric equivalent to the AX7DAF4-148.5000C. Both parts are manufactured by Abracon LLC within the ClearClock™ AX7 series and share identical electrical specifications, frequency output, and physical package dimensions.

The primary consideration for selection is product availability and status. The AX7DAF4-148.5000C is discontinued at DiGi Electronics, whereas the AX7DAF1-148.5000 maintains active product status with current inventory availability. Both parts carry ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility.

The packaging format difference (standard versus Strip) is a procurement and handling consideration rather than an electrical or functional factor. Strip packaging is standard for high-volume applications and does not affect component performance or PCB assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can the AX7DAF1-148.5000 be used as a direct replacement for the AX7DAF4-148.5000C?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, frequency output (148.5 MHz), LVDS output type, 3.3V supply voltage, Enable/Disable function, and 8-SMD package dimensions. The only difference is packaging format.

Q: What is the difference between standard packaging and Strip packaging?

A: Packaging format refers to how components are supplied for procurement and assembly. Strip packaging is a continuous reel format commonly used in high-volume manufacturing. Both formats contain identical components with no electrical or functional differences.

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

A: No. Both parts carry identical RoHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited) ratings.

Q: Why is the AX7DAF4-148.5000C discontinued?

A: Product discontinuation is a manufacturer decision typically related to market demand or product line consolidation. The AX7DAF1-148.5000 remains in active production and serves the same functional requirements.

Q: Will the AX7DAF1-148.5000 work in existing PCB designs for the AX7DAF4-148.5000C?

A: Yes. Identical package dimensions (7.00mm x 5.00mm x 1.90mm maximum height) and pinout ensure direct PCB compatibility without design modifications.

Q: Are the frequency stability and operating temperature ranges identical?

A: Yes. Both parts specify ±25ppm frequency stability and -40°C ~ 85°C operating temperature range.