AX7DBF4-500.0000C Equivalent & Substitute Parts

Part Overview

The AX7DBF4-500.0000C 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 and is housed in an 8-SMD, No Lead package. The product is discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

AX7DBF4-500.0000C

Abracon LLCIn Stock: 1044AX7DBF4-500.0000C Datasheet

Current PartRFQ

590FB500M000DG

Skyworks Solutions Inc.In Stock: 774590FB500M000DG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7DBF4-500.0000C is determined by strict alignment of the following critical parameters:

• Frequency: 500 MHz (exact match required)
• Output Type: LVDS (exact match required)
• Supply Voltage: 2.5V (exact match required)
• Function: Enable/Disable (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Base Resonator: Crystal (exact match required)
• Type: XO (Standard) (exact match required)

The 590FB500M000DG from Skyworks Solutions Inc. meets all critical electrical parameters. Package differences (6-SMD vs. 8-SMD) and minor variations in supply current and seated height are within acceptable substitution tolerances for this oscillator category.

Parameter Comparison

Engineering Selection Recommendations

The 590FB500M000DG is an active product from Skyworks Solutions Inc., providing continuity for designs currently using the discontinued AX7DBF4-500.0000C. Both components are ROHS3 compliant and carry MSL 1 rating, ensuring equivalent environmental and regulatory compliance.

The Skyworks substitute exhibits higher maximum supply current (100mA vs. 70mA) and slightly elevated disable-mode current (75mA vs. 65mA). These differences are acceptable for most applications where the original design margin accommodates the increased current draw. The 6-SMD package of the substitute versus the 8-SMD of the original requires PCB layout verification to confirm pad compatibility and signal integrity.

The identical footprint dimensions (7.00mm x 5.00mm) and minimal height difference (0.071" vs. 0.075") support direct mechanical substitution in most surface-mount assemblies.

Frequently Asked Questions (FAQ)

Q: Can the 590FB500M000DG directly replace the AX7DBF4-500.0000C on existing PCBs?

A: Electrical substitution is valid based on matching frequency, output type, supply voltage, function, and stability specifications. However, the package difference (6-SMD vs. 8-SMD) requires PCB pad layout verification. Footprint compatibility must be confirmed before assembly.

Q: What are the key differences between these two oscillators?

A: The primary differences are package configuration (6-SMD vs. 8-SMD) and supply current specifications. The Skyworks part draws up to 100mA maximum supply current compared to 70mA for the Abracon part. All critical electrical parameters—frequency, output type, voltage, stability, and temperature range—are identical.

Q: Are there compliance or certification differences?

A: Both components are ROHS3 compliant with MSL 1 rating and identical ECCN and HTSUS classifications. No compliance barriers exist for substitution.

Q: What should be verified before implementing this substitute?

A: Confirm PCB pad layout compatibility with the 6-SMD package configuration. Verify that the design power budget accommodates the higher maximum supply current of the Skyworks part. Validate signal integrity and timing performance in the target application.