AX7MBF4-50.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF4-50.0000C is a 50 MHz XO (Standard) CML oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount device 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 equivalent substitute parts necessary for ongoing system support and procurement.

Substiute Parts

AX7MBF4-50.0000C

Abracon LLCIn Stock: 686AX7MBF4-50.0000C Datasheet

Current PartRFQ

590WB50M0000DG

Skyworks Solutions Inc.In Stock: 907590WB50M0000DG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX7MBF4-50.0000C is determined by the following critical parameters:

• Frequency Match: 50 MHz (exact match required)
• Output Type: CML (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)
• Physical Footprint: 7.00mm x 5.00mm (exact match required)
• Mounting Type: Surface Mount (exact match required)

The 590WB50M0000DG from Skyworks Solutions Inc. meets all critical frequency, output, function, temperature, and stability parameters. Differences in supply voltage (1.8V vs. 2.5V), package configuration (6-SMD vs. 8-SMD), and current consumption are secondary considerations that may require circuit-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

The 590WB50M0000DG is the manufacturer-recommended substitute for the AX7MBF4-50.0000C. Both devices share identical frequency, output type, function, temperature range, and frequency stability specifications. The primary design consideration is the supply voltage difference: the substitute operates at 1.8V versus the original 2.5V. This lower voltage requirement may reduce power consumption in systems with flexible supply rails but requires verification that the device's 110mA maximum supply current is compatible with the target application's power budget.

The substitute's 6-SMD package versus the original 8-SMD configuration maintains the same physical footprint (7.00mm x 5.00mm) and is compatible with existing PCB layouts. The active product status of the 590WB50M0000DG ensures long-term availability and supply chain continuity compared to the discontinued AX7MBF4-50.0000C.

Frequently Asked Questions (FAQ)

Q: Can the 590WB50M0000DG be used as a direct replacement for the AX7MBF4-50.0000C?

A: The 590WB50M0000DG is functionally equivalent for frequency, output type, and temperature range. The primary design change is the reduced supply voltage (1.8V vs. 2.5V). Verify that your power supply and signal conditioning circuits support 1.8V operation before implementation.

Q: What is the impact of the different package configurations (8-SMD vs. 6-SMD)?

A: Both packages maintain the same 7.00mm x 5.00mm footprint and are compatible with existing PCB layouts. The 6-SMD configuration of the substitute may have different internal pin assignments; consult the device datasheets to confirm signal routing compatibility.

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

A: Both devices are Moisture Sensitivity Level 1 (Unlimited) and comply with ECCN EAR99 and HTSUS 8542.39.0001 classifications. The original part is ROHS3 compliant; verify RoHS compliance status of the substitute with the manufacturer if required for your application.

Q: How do the current consumption specifications compare?

A: The 590WB50M0000DG draws a maximum of 110mA during operation and 75mA in disable mode, compared to 68mA and 67mA respectively for the AX7MBF4-50.0000C. Evaluate whether the additional current draw is acceptable within your system's power budget.

Q: Is the ±25ppm frequency stability maintained in the substitute?

A: Yes, both devices specify ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.