AX7MBF4-622.0800C Equivalent & Substitute Parts

Part Overview

The AX7MBF4-622.0800C is a 622.08 MHz XO (Standard) CML Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount oscillator operates at 2.5V with Enable/Disable functionality and is housed in an 8-SMD, No Lead package. The part is discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

AX7MBF4-622.0800C

Abracon LLCIn Stock: 1053AX7MBF4-622.0800C Datasheet

Current PartRFQ

AX7MCF1-622.0800C

Abracon LLCIn Stock: 766AX7MCF1-622.0800C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AX7MBF4-622.0800C are identified based on strict electrical and mechanical compatibility criteria. The following parameters must remain constant or compatible across substitute parts:

• Frequency: 622.08 MHz (exact match required)
• Output Type: CML (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)
• Package / Case: 8-SMD, No Lead (exact match required)
• Physical Dimensions: 0.276" L x 0.197" W (7.00mm x 5.00mm) (exact match required)
• Height - Seated (Max): 0.075" (1.90mm) (exact match required)
• Series: ClearClock™ AX7 (exact match required)

Parameters that may vary within acceptable substitution criteria:

• Supply Voltage: May differ if the substitute part operates within the system's voltage tolerance range
• Current - Supply (Max): Minor variations acceptable if within system power budget
• Current - Supply (Disable) (Max): Minor variations acceptable

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-622.0800C serves as a direct substitute for the AX7MBF4-622.0800C with one critical design consideration: supply voltage differs at 1.8V versus 2.5V. Both parts maintain identical frequency, output type, stability, temperature range, package dimensions, and compliance certifications (ROHS3, MSL 1).

Selection of the AX7MCF1-622.0800C requires verification that the system power supply can accommodate 1.8V operation. If the design currently operates at 2.5V exclusively, voltage regulation or redesign may be necessary. Both parts are discontinued at DiGi Electronics; inventory availability should be confirmed with authorized distributors.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-622.0800C replace the AX7MBF4-622.0800C in existing designs?

A: Direct replacement is possible only if the system design supports 1.8V supply voltage. The substitute part operates at 1.8V while the original operates at 2.5V. All other electrical and mechanical parameters are identical.

Q: Are the physical packages identical?

A: Yes. Both parts use the same 8-SMD, No Lead package with dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) and maximum seated height of 0.075" (1.90mm). PCB footprints are interchangeable.

Q: Do both parts have the same frequency stability?

A: Yes. Both the AX7MBF4-622.0800C and AX7MCF1-622.0800C maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.

Q: What is the primary difference between these parts?

A: The primary difference is supply voltage: AX7MBF4-622.0800C operates at 2.5V, while AX7MCF1-622.0800C operates at 1.8V. Frequency, output type (CML), function (Enable/Disable), and all mechanical specifications remain identical.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.