AX7DBF1-500.0000C Equivalent & Substitute Parts

Part Overview

The AX7DBF1-500.0000C is a 500 MHz XO (Standard) LVDS oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This component operates at 2.5V with Enable/Disable functionality in an 8-SMD, No Lead surface mount package. The part is discontinued at DiGi Electronics, making identification of equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

AX7DBF1-500.0000C

Abracon LLCIn Stock: 914AX7DBF1-500.0000C Datasheet

Current PartRFQ

590FB500M000DG

Skyworks Solutions Inc.In Stock: 774590FB500M000DG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7DBF1-500.0000C is determined by the following critical parameters:

• Frequency Match: 500 MHz (exact match required)
• Output Configuration: LVDS (exact match required)
• Supply Voltage: 2.5V (exact match required)
• Function: Enable/Disable capability (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The substitute part 590FB500M000DG from Skyworks Solutions Inc. meets all critical electrical and environmental parameters. Physical package differences (8-SMD vs. 6-SMD) and minor variations in maximum supply current and seated height are within acceptable tolerance for equivalent substitution in applications where the AX7DBF1-500.0000C is specified.

Parameter Comparison

Engineering Selection Recommendations

The 590FB500M000DG from Skyworks Solutions Inc. is the qualified substitute for the discontinued AX7DBF1-500.0000C. Selection is based on:

• Electrical Equivalence: All critical parameters (frequency, output type, supply voltage, function, stability, and temperature range) are identical.
• Product Availability: The substitute is active in production, ensuring long-term procurement viability.
• Compliance: Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications.
• Physical Compatibility: Footprint dimensions are identical (7.00mm x 5.00mm). Package configuration differs (6-SMD vs. 8-SMD), but both are surface mount with no lead. Height difference (1.80mm vs. 1.90mm) is negligible for PCB assembly.
• Performance Margin: The substitute's higher maximum supply current (100mA vs. 70mA) and disable current (75mA vs. 65mA) provide operational headroom without affecting circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the 590FB500M000DG directly replace the AX7DBF1-500.0000C on existing PCBs?

A: Yes, for applications where the AX7DBF1-500.0000C is specified. Both parts share identical footprint dimensions (7.00mm x 5.00mm) and are surface mount components. The package configuration differs (6-SMD vs. 8-SMD), but this does not affect electrical compatibility or PCB layout. Verify that your PCB design accommodates the 6-SMD pad pattern of the substitute.

Q: Are there electrical performance differences between these parts?

A: No. Both oscillators deliver identical frequency (500 MHz), output type (LVDS), supply voltage (2.5V), frequency stability (±25ppm), and operating temperature range (-40°C ~ 85°C). The substitute's higher maximum supply current specification (100mA vs. 70mA) indicates a wider operational margin but does not affect circuit behavior.

Q: What is the significance of the package difference (8-SMD vs. 6-SMD)?

A: The package difference refers to the number of solder pads on the component. Both are surface mount, no-lead packages with identical external dimensions. The 6-SMD configuration of the substitute is a more compact internal design. PCB footprint compatibility depends on your specific design; verify pad layout compatibility before assembly.

Q: Are both parts RoHS compliant?

A: The AX7DBF1-500.0000C is confirmed ROHS3 compliant. RoHS compliance status for the 590FB500M000DG is not specified in the provided data. Confirm RoHS compliance with Skyworks Solutions Inc. if this certification is required for your application.

Q: Why is the AX7DBF1-500.0000C discontinued?

A: The part is discontinued at DiGi Electronics. Discontinuation does not indicate a design flaw; it reflects normal product lifecycle management. The 590FB500M000DG remains in active production and is the manufacturer-recommended substitute.