AX7MBF2-2100.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF2-2100.0000C is a 2.1 GHz XO (Standard) CML Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount crystal 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

AX7MBF2-2100.0000C

Abracon LLCIn Stock: 994AX7MBF2-2100.0000C Datasheet

Current PartRFQ

AX7MCF1-2100.0000C

Abracon LLCIn Stock: 996AX7MCF1-2100.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7MBF2-2100.0000C is determined by the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 2.1 GHz
• 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
• Mounting Type: Surface Mount

Flexible Parameters (Allowable Variation):

• Voltage - Supply: Alternative voltage ratings within the same series are acceptable if system design permits
• Current - Supply (Max): Variations within the ClearClock™ AX7 series specifications

The substitute part AX7MCF1-2100.0000C maintains all mandatory parameters while operating at 1.8V instead of 2.5V, making it suitable for systems designed to accommodate lower supply voltage operation.

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-2100.0000C serves as a direct substitute for the discontinued AX7MBF2-2100.0000C when system design accommodates 1.8V supply operation. Both parts maintain identical mechanical compatibility, frequency performance, and environmental specifications. The primary design consideration is supply voltage: the substitute operates at 1.8V versus the original 2.5V specification.

Both parts carry ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment for current manufacturing standards. Moisture sensitivity level 1 (Unlimited) indicates no special handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-2100.0000C replace the AX7MBF2-2100.0000C in existing designs?

A: Substitution is possible only if the system power supply can accommodate 1.8V operation. The substitute part maintains identical frequency, output type (CML), package dimensions, and thermal specifications. Verify that your circuit design supports the lower supply voltage before implementation.

Q: Are the physical packages identical between these parts?

A: Yes. Both parts use 8-SMD, No Lead packaging with identical 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 primary difference between these oscillators?

A: The AX7MBF2-2100.0000C operates at 2.5V supply voltage, while the AX7MCF1-2100.0000C operates at 1.8V. All other electrical and mechanical parameters, including frequency stability (±25ppm), maximum supply current (68mA), and operating temperature range (-40°C ~ 85°C), remain identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). They meet identical regulatory and environmental requirements.

Q: Is inventory availability a factor in selecting between these parts?

A: The AX7MCF1-2100.0000C currently has 934 pieces in stock, while the original AX7MBF2-2100.0000C is discontinued at DiGi Electronics. Availability favors the substitute part for new procurement.