AX7MBF2-312.5000C Equivalent & Substitute Parts

Part Overview

The AX7MBF2-312.5000C is a 312.5 MHz XO (Standard) CML Oscillator manufactured by Abracon LLC, 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 measuring 7.00mm x 5.00mm. The product is discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and component procurement.

Substiute Parts

AX7MBF2-312.5000C

Abracon LLCIn Stock: 884AX7MBF2-312.5000C Datasheet

Current PartRFQ

AX7MCF1-312.5000C

Abracon LLCIn Stock: 1051AX7MCF1-312.5000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX7MBF2-312.5000C is determined by the following critical parameters:

• Frequency: 312.5 MHz (exact match required)
• Output Type: CML (exact match required)
• Package Type: 8-SMD, No Lead (exact match required)
• Package Dimensions: 7.00mm x 5.00mm (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)

The AX7MCF1-312.5000C qualifies as a substitute part because it maintains identical specifications across all critical parameters. The primary distinction is the supply voltage specification: the substitute operates at 1.8V rather than 2.5V. This voltage difference represents a design variation within the same product family and series, allowing the substitute to function in applications where the lower supply voltage is compatible with system requirements.

Parameter Comparison

Engineering Selection Recommendations

The AX7MCF1-312.5000C serves as a direct substitute for the discontinued AX7MBF2-312.5000C when system power supply architecture supports 1.8V operation. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent environmental performance and regulatory standing. The substitute part is currently available in inventory (987 pcs), providing supply continuity for production requirements. Selection between these parts depends solely on the voltage supply capability of the target application circuit.

Frequently Asked Questions (FAQ)

Q: Can the AX7MCF1-312.5000C replace the AX7MBF2-312.5000C in all applications?

A: The substitute part is compatible only in applications where the system power supply operates at 1.8V. If your circuit requires 2.5V supply voltage, the substitute is not suitable without circuit redesign.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the same 8-SMD, No Lead package with dimensions of 7.00mm x 5.00mm and maximum height of 1.90mm. PCB layout and footprints are interchangeable.

Q: Do both parts have the same frequency stability?

A: Yes. Both the main part and substitute maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.

Q: What is the primary difference between these oscillators?

A: The supply voltage specification differs: AX7MBF2-312.5000C operates at 2.5V, while AX7MCF1-312.5000C operates at 1.8V. All other electrical and mechanical specifications are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting equivalent environmental and regulatory requirements.