AX7MBF1-50.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF1-50.0000C is a 50 MHz XO (Standard) CML 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 compatible substitute parts essential for ongoing system support and procurement.

Substiute Parts

AX7MBF1-50.0000C

Abracon LLCIn Stock: 715AX7MBF1-50.0000C Datasheet

Current PartRFQ

590WB50M0000DG

Skyworks Solutions Inc.In Stock: 907590WB50M0000DG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7MBF1-50.0000C 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)
• Package Footprint: 7.00mm x 5.00mm surface mount (exact match required)
• Supply Voltage Compatibility: Substitute must operate within system voltage tolerance
• RoHS Compliance: ROHS3 Compliant (maintained)
• Moisture Sensitivity: MSL 1 (Unlimited) preferred for handling consistency

The 590WB50M0000DG from Skyworks Solutions Inc. meets all critical electrical and mechanical parameters. While the substitute operates at 1.8V (lower than the original 2.5V specification), it maintains identical frequency, output type, function, temperature range, and frequency stability. The package footprint remains identical at 7.00mm x 5.00mm. The substitute uses a 6-SMD package versus the original 8-SMD configuration; however, the footprint dimensions are preserved for PCB compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 590WB50M0000DG is the manufacturer-recommended substitute for the discontinued AX7MBF1-50.0000C. Both components maintain identical frequency, output type, function, temperature range, and frequency stability specifications. The substitute is currently in active production status, ensuring long-term availability and supply chain continuity.

The primary design consideration is the supply voltage difference: the substitute operates at 1.8V versus the original 2.5V. System designs must confirm that the lower voltage specification is compatible with existing power distribution and signal integrity requirements. The substitute's maximum supply current of 110mA exceeds the original specification of 68mA; power budget analysis is necessary for systems with constrained current delivery.

Package footprint compatibility is maintained at 7.00mm x 5.00mm, allowing direct PCB placement without layout modifications. The substitute's 6-SMD configuration versus the original 8-SMD does not affect electrical performance or mechanical fit on the PCB.

Both components maintain MSL 1 (Unlimited) moisture sensitivity classification, ensuring consistent handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the 590WB50M0000DG directly replace the AX7MBF1-50.0000C without PCB modifications?

A: The footprint dimensions are identical at 7.00mm x 5.00mm, allowing direct placement. However, the supply voltage difference (1.8V vs. 2.5V) requires verification that system power delivery and signal conditioning circuits support the lower voltage specification.

Q: What is the impact of the supply voltage difference?

A: The substitute operates at 1.8V, which is lower than the original 2.5V specification. This requires confirmation that the system's voltage regulator and power distribution network can supply 1.8V to the oscillator without affecting signal integrity or other system components.

Q: Why does the substitute have higher maximum supply current?

A: The 590WB50M0000DG specifies 110mA maximum supply current compared to 68mA for the original. This difference reflects the electrical characteristics of the Skyworks Si590 architecture. System power budgets must account for this higher current draw.

Q: Are the package types interchangeable?

A: Both components use 8-SMD and 6-SMD No Lead packages respectively, but maintain identical footprint dimensions of 7.00mm x 5.00mm. The different SMD pad counts do not affect PCB compatibility or placement.

Q: What is the frequency stability tolerance for both parts?

A: Both the original and substitute maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range, ensuring equivalent timing accuracy.

Q: Is the substitute available in the same packaging format?

A: The substitute is supplied in Strip packaging, whereas the original packaging format is not specified in the provided data. Confirm packaging requirements with your procurement process.