AX5PAF4-300.0000C Equivalent & Substitute Parts

Part Overview

The AX5PAF4-300.0000C is a 300 MHz XO (Standard) LVPECL Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX5 series. This surface mount oscillator operates at 3.3V 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

AX5PAF4-300.0000C

Abracon LLCIn Stock: 1138AX5PAF4-300.0000C Datasheet

Current PartRFQ

AX5PAF3-300.0000C

Abracon LLCIn Stock: 661AX5PAF3-300.0000C Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AX5PAF4-300.0000C has one parametric equivalent substitute: AX5PAF3-300.0000C. This substitution is valid based on the following criteria:

Matching Parameters (Substitution Basis):

• Identical frequency: 300 MHz
• Identical output type: LVPECL
• Identical supply voltage: 3.3V
• Identical function: Enable/Disable
• Identical frequency stability: ±20ppm
• Identical operating temperature range: -40°C ~ 85°C
• Identical maximum supply current: 110mA
• Identical package type: 8-SMD, No Lead
• Identical package dimensions: 5.00mm x 3.20mm x 1.50mm (Max)
• Identical mounting type: Surface Mount
• Identical RoHS and compliance status

The substitution is based on electrical and mechanical parameter equivalence within the ClearClock™ AX5 series. Both parts share identical functional specifications and physical characteristics, making them interchangeable for circuit applications requiring these exact parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the AX5PAF4-300.0000C and AX5PAF3-300.0000C are ROHS3 compliant and carry MSL 1 rating, indicating no moisture sensitivity constraints during storage and handling. The AX5PAF3-300.0000C is currently available with 613 units in stock, while the original AX5PAF4-300.0000C is discontinued at DiGi Electronics with 1088 units remaining in inventory.

For new designs or production requiring the 300 MHz LVPECL oscillator specification, the AX5PAF3-300.0000C provides full electrical and mechanical compatibility. Selection between available inventory should be based on procurement timeline and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can AX5PAF3-300.0000C be used as a direct replacement for AX5PAF4-300.0000C?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications, including frequency, output type, supply voltage, function, stability, temperature range, current consumption, package type, and dimensions. Direct substitution is valid for circuit applications.

Q: Are there any differences in compliance or certifications between these parts?

A: No. Both parts carry identical RoHS3 compliance status and MSL 1 moisture sensitivity rating. Regulatory and environmental compliance is equivalent.

Q: What is the significance of the part number suffix difference (AX5PAF4 vs. AX5PAF3)?

A: The suffix difference does not reflect changes in the electrical or mechanical parameters provided in this reference. Both parts maintain identical specifications within the ClearClock™ AX5 series.

Q: Are the package dimensions identical for both parts?

A: Yes. Both parts use the same 8-SMD, No Lead package with dimensions of 5.00mm length, 3.20mm width, and 1.50mm maximum seated height. PCB layout and assembly considerations are identical.

Q: What is the current availability status of each part?

A: AX5PAF4-300.0000C is discontinued at DiGi Electronics with 1088 units in remaining inventory. AX5PAF3-300.0000C is available with 613 units in stock. Availability may vary by distributor and time of inquiry.