AX7PAF4-1500.0000C Equivalent & Substitute Parts

Part Overview

The AX7PAF4-1500.0000C is a 1.5 GHz XO (Standard) LVPECL Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount crystal 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 equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

AX7PAF4-1500.0000C

Abracon LLCIn Stock: 1026AX7PAF4-1500.0000C Datasheet

Current PartRFQ

AX7PBF1-1500.0000C

Abracon LLCIn Stock: 1047AX7PBF1-1500.0000C Datasheet

MFR RecommendedRFQ

AX7PAF1-1500.0000C

Abracon LLCIn Stock: 1016AX7PAF1-1500.0000C Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AX7PAF4-1500.0000C is determined by the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 1.5 GHz
• Output Type: LVPECL
• 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)
• Operating Temperature Range: -40°C ~ 85°C
• Frequency Stability: ±25ppm
• Function: Enable/Disable
• Type: XO (Standard)
• Base Resonator: Crystal

Flexible Parameters (Allow Variation):

• Supply Voltage: 3.3V or 2.5V
• Current - Supply (Max): 94mA
• Current - Supply (Disable) (Max): 86mA

The substitute parts identified maintain all mandatory parameters while allowing supply voltage variation, which is acceptable when circuit design accommodates the alternative voltage specification.

Parameter Comparison

Engineering Selection Recommendations

AX7PBF1-1500.0000C (MFR Recommended Substitute): This part is the manufacturer-recommended alternative. It maintains identical electrical and mechanical specifications to the main part with the exception of supply voltage (2.5V versus 3.3V). Selection of this part requires circuit design confirmation that 2.5V operation is compatible with system power distribution and signal integrity requirements. All compliance certifications (ROHS3, MSL 1) are equivalent.

AX7PAF1-1500.0000C (Parametric Equivalent): This part provides direct parametric equivalence to the main part, matching all electrical and mechanical specifications including the 3.3V supply voltage. This represents the closest functional replacement and requires no circuit design modifications related to voltage specifications. Compliance certifications are identical to the main part.

Frequently Asked Questions (FAQ)

Q: Can AX7PBF1-1500.0000C be used as a direct replacement for AX7PAF4-1500.0000C?

A: AX7PBF1-1500.0000C is the manufacturer-recommended substitute but operates at 2.5V instead of 3.3V. Direct substitution is possible only if the circuit design accommodates 2.5V supply voltage operation. All other electrical and mechanical parameters are identical.

Q: What is the difference between the MFR Recommended and Parametric Equivalent substitutes?

A: AX7PBF1-1500.0000C (MFR Recommended) operates at 2.5V supply voltage. AX7PAF1-1500.0000C (Parametric Equivalent) operates at 3.3V supply voltage, matching the original part exactly. The parametric equivalent requires no circuit modifications.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 8-SMD, No Lead package with identical physical dimensions (0.276" L x 0.197" W, 7.00mm x 5.00mm) and maximum seated height (0.075" / 1.90mm). PCB footprints are interchangeable.

Q: Do the substitute parts maintain the same frequency stability?

A: Yes. All three parts maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.

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

A: No. All three parts are ROHS3 Compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and share identical REACH and ECCN classifications.

Q: Which substitute should be selected for new designs?

A: AX7PAF1-1500.0000C (Parametric Equivalent) is recommended for new designs as it provides complete parameter matching to the original specification without requiring circuit design modifications.