AX7PAF1-1800.0000C Equivalent & Substitute Parts

Part Overview

The AX7PAF1-1800.0000C is a 1.8 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 identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

AX7PAF1-1800.0000C

Abracon LLCIn Stock: 1208AX7PAF1-1800.0000C Datasheet

Current PartRFQ

AX7PBF1-1800.0000C

Abracon LLCIn Stock: 1064AX7PBF1-1800.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7PAF1-1800.0000C is determined by the following critical parameters:

• Frequency: 1.8 GHz (exact match required)
• Output Type: LVPECL (exact match required)
• Function: Enable/Disable capability (exact match required)
• Package / Case: 8-SMD, No Lead (exact match required)
• Physical Dimensions: 7.00mm x 5.00mm footprint (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

The AX7PBF1-1800.0000C qualifies as a substitute part because it maintains all critical electrical and mechanical parameters. The primary difference is the supply voltage specification (2.5V versus 3.3V), which represents a design variation within the same product family and does not preclude substitution in applications where the lower voltage specification is compatible with system requirements.

Parameter Comparison

Engineering Selection Recommendations

The AX7PBF1-1800.0000C is a valid substitute for the discontinued AX7PAF1-1800.0000C based on electrical and mechanical compatibility. Both parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental performance and regulatory compliance.

Selection between these parts depends on system power supply architecture. The AX7PAF1-1800.0000C operates at 3.3V, while the AX7PBF1-1800.0000C operates at 2.5V. Verify that your circuit design accommodates the supply voltage of the selected part. Both parts maintain identical frequency, output type, stability, temperature range, and package specifications, ensuring functional interchangeability within voltage constraints.

Frequently Asked Questions (FAQ)

Q: Can the AX7PBF1-1800.0000C replace the AX7PAF1-1800.0000C in my design?

A: Yes, provided your circuit power supply is compatible with 2.5V operation. All other electrical and mechanical parameters are identical, including frequency (1.8 GHz), output type (LVPECL), stability (±25ppm), and package (8-SMD, No Lead).

Q: What is the primary difference between these two parts?

A: The supply voltage differs: AX7PAF1-1800.0000C operates at 3.3V, while AX7PBF1-1800.0000C operates at 2.5V. All other specifications remain unchanged.

Q: Are both parts physically identical?

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

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) ratings, ensuring equivalent environmental and regulatory compliance.

Q: What frequency stability should I expect from either part?

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