AX7MBF3-622.0800C Equivalent & Substitute Parts

Part Overview

The AX7MBF3-622.0800C 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

AX7MBF3-622.0800C

Abracon LLCIn Stock: 878AX7MBF3-622.0800C Datasheet

Current PartRFQ

AX7MCF1-622.0800C

Abracon LLCIn Stock: 766AX7MCF1-622.0800C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7MBF3-622.0800C is determined by the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 622.08 MHz
• Output Type: CML
• Function: Enable/Disable
• Package / Case: 8-SMD, No Lead
• Physical Dimensions: 0.276" L x 0.197" W (7.00mm x 5.00mm)
• Height - Seated (Max): 0.075" (1.90mm)
• Frequency Stability: ±25ppm
• Operating Temperature Range: -40°C ~ 85°C

Allowable Variation Parameters:

• Supply Voltage: May differ based on circuit design requirements
• Current - Supply (Max): Allowable within specified limits
• Current - Supply (Disable) (Max): Allowable within specified limits

The AX7MCF1-622.0800C qualifies as a substitute part because it maintains all mandatory matching parameters while operating at a different supply voltage (1.8V versus 2.5V).

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-622.0800C serves as a direct substitute for the discontinued AX7MBF3-622.0800C. Both parts maintain identical frequency, output type, package configuration, and thermal specifications. The primary design consideration is the supply voltage difference: the substitute operates at 1.8V compared to the original 2.5V specification.

Selection of the substitute part requires verification that the circuit design accommodates 1.8V operation. Both parts carry ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment. Moisture sensitivity level remains at MSL 1 (Unlimited) for both variants, indicating no special handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-622.0800C replace the AX7MBF3-622.0800C in all applications?

A: The substitute part maintains identical frequency, output type, package, and thermal specifications. Substitution is valid only if the circuit design supports 1.8V operation instead of 2.5V. Verify power supply compatibility before implementation.

Q: Are the physical dimensions identical between the main part and substitute?

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 layout and assembly processes require no modification.

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

A: Both the AX7MBF3-622.0800C and AX7MCF1-622.0800C maintain ±25ppm frequency stability across the operating temperature range of -40°C to 85°C.

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

A: No. Both parts are ROHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance is equivalent.

Q: What is the primary difference between these two oscillators?

A: The supply voltage differs: AX7MBF3-622.0800C operates at 2.5V, while AX7MCF1-622.0800C operates at 1.8V. All other electrical and mechanical specifications remain identical.