AX7MBF3-2100.0000C Equivalent & Substitute Parts

Part Overview

The AX7MBF3-2100.0000C 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 supply voltage 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

AX7MBF3-2100.0000C

Abracon LLCIn Stock: 817AX7MBF3-2100.0000C Datasheet

Current PartRFQ

AX7MCF1-2100.0000C

Abracon LLCIn Stock: 996AX7MCF1-2100.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7MBF3-2100.0000C is determined by the following critical parameters that must remain constant or compatible:

Fixed Parameters (Must Match):

• Frequency: 2.1 GHz
• Output Type: CML
• Function: Enable/Disable
• Frequency Stability: ±25ppm
• Operating Temperature Range: -40°C ~ 85°C
• Mounting Type: Surface Mount
• 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)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Allowable Differences):

• Voltage - Supply: May differ based on circuit design requirements
• Current - Supply (Max): May vary within acceptable operating margins

The AX7MCF1-2100.0000C qualifies as a substitute part because it maintains all fixed parameters while operating at a different supply voltage (1.8V instead of 2.5V). This voltage difference is acceptable only in applications designed to operate at 1.8V supply levels.

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-2100.0000C serves as a manufacturer-recommended substitute for the discontinued AX7MBF3-2100.0000C. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment across product generations.

Selection between these parts depends solely on circuit supply voltage requirements. The main part operates at 2.5V, while the substitute operates at 1.8V. Choose the AX7MCF1-2100.0000C only if your application is designed for 1.8V supply operation. If your design requires 2.5V supply voltage, the AX7MBF3-2100.0000C remains the correct choice, though procurement may require alternative sourcing channels due to DiGi Electronics discontinuation.

Both parts share identical frequency stability, temperature range, package dimensions, and electrical characteristics beyond supply voltage, ensuring functional equivalence within their respective voltage domains.

Frequently Asked Questions (FAQ)

Q: Can I use the AX7MCF1-2100.0000C as a direct replacement for the AX7MBF3-2100.0000C?

A: Only if your circuit is designed for 1.8V supply operation. The substitute part operates at 1.8V, while the main part requires 2.5V. Voltage mismatch will result in oscillator malfunction or failure.

Q: Are the physical dimensions identical between these parts?

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 footprints are interchangeable.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AX7MBF3-2100.0000C and AX7MCF1-2100.0000C are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the frequency stability specification for these oscillators?

A: Both parts maintain ±25ppm frequency stability across the -40°C to 85°C operating temperature range.

Q: Are there any differences in current consumption between these parts?

A: Both parts specify a maximum supply current of 68mA and maximum disable current of 67mA. Current consumption is equivalent.

Q: Why is the AX7MBF3-2100.0000C discontinued?

A: Product discontinuation at DiGi Electronics is a distribution decision. The manufacturer-recommended substitute AX7MCF1-2100.0000C provides equivalent functionality for 1.8V applications and maintains current inventory availability.