AX7PAF2-2100.0000C Equivalent & Substitute Parts

Part Overview

The AX7PAF2-2100.0000C is a 2.1 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 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.

Key Parameters

Parameter	Value
Manufacturer Part Number	AX7PAF2-2100.0000C
Manufacturer	Abracon LLC
Series	ClearClock™ AX7
Frequency	2.1 GHz
Output Type	LVPECL
Voltage - Supply	3.3V
Frequency Stability	±25ppm
Operating Temperature Range	-40°C ~ 85°C
Current - Supply (Max)	94mA
Mounting Type	Surface Mount
Package / Case	8-SMD, No Lead
Size / Dimension	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 (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AX7PAF2-2100.0000C are identified based on the following critical parameters that determine functional compatibility:

Mandatory Matching Parameters:

Frequency: 2.1 GHz
Output Type: LVPECL
Package / Case: 8-SMD, No Lead
Mounting Type: Surface Mount
Operating Temperature Range: -40°C ~ 85°C
Frequency Stability: ±25ppm

Allowable Variation Parameters:

Voltage - Supply: 2.5V or 3.3V (both supported in ClearClock™ AX7 series)
Current - Supply (Max): Within 94mA specification
Current - Supply (Disable) (Max): Within 86mA specification

The substitute parts listed maintain identical mechanical dimensions, electrical output characteristics, and environmental ratings while allowing for supply voltage flexibility within the ClearClock™ AX7 product family.

Parameter Comparison

Parameter	AX7PAF2-2100.0000C (Main)	AX7PBF1-2100.0000C (MFR Recommended)	AX7PAF1-2100.0000C (Parametric Equivalent)
Manufacturer	Abracon LLC	Abracon LLC	Abracon LLC
Series	ClearClock™ AX7	ClearClock™ AX7	ClearClock™ AX7
Frequency	2.1 GHz	2.1 GHz	2.1 GHz
Output Type	LVPECL	LVPECL	LVPECL
Voltage - Supply	3.3V	2.5V	3.3V
Frequency Stability	±25ppm	±25ppm	±25ppm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Current - Supply (Max)	94mA	94mA	94mA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-SMD, No Lead	8-SMD, No Lead	8-SMD, No Lead
Size / Dimension	0.276" L x 0.197" W (7.00mm x 5.00mm)	0.276" L x 0.197" W (7.00mm x 5.00mm)	0.276" L x 0.197" W (7.00mm x 5.00mm)
Height - Seated (Max)	0.075" (1.90mm)	0.075" (1.90mm)	0.075" (1.90mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Inventory Status	669 Pcs New Original In Stock	1097 Pcs New Original In Stock	712 Pcs New Original In Stock

Engineering Selection Recommendations

AX7PBF1-2100.0000C (MFR Recommended Substitute): This part is the manufacturer-recommended substitute for the AX7PAF2-2100.0000C. The primary difference is the supply voltage specification of 2.5V versus 3.3V on the main part. Both parts are ROHS3 compliant, carry MSL 1 rating, and maintain identical mechanical and electrical output characteristics. Selection of this part requires confirmation that the system power supply can accommodate 2.5V operation. Current inventory availability is 1097 pieces.

AX7PAF1-2100.0000C (Parametric Equivalent): This part provides parametric equivalence with identical supply voltage (3.3V) to the main part, eliminating the need for power supply circuit modifications. All electrical and mechanical specifications match the AX7PAF2-2100.0000C. Both parts carry ROHS3 compliance and MSL 1 rating. Current inventory availability is 712 pieces.

Both substitute parts are discontinued at DiGi Electronics, consistent with the main part status. Selection between the two substitutes depends on system power supply architecture and voltage rail availability.

Frequently Asked Questions (FAQ)

Q: Can AX7PBF1-2100.0000C be used as a direct replacement for AX7PAF2-2100.0000C?

A: AX7PBF1-2100.0000C is the manufacturer-recommended substitute. The primary difference is the 2.5V supply voltage requirement versus 3.3V on the main part. Direct PCB-level substitution is possible if the system power supply includes a 2.5V rail. If only 3.3V is available, AX7PAF1-2100.0000C is the appropriate choice.

Q: What are the key parameters that must match for substitution?

A: Frequency (2.1 GHz), output type (LVPECL), package (8-SMD, No Lead), operating temperature range (-40°C ~ 85°C), and frequency stability (±25ppm) must remain constant. Supply voltage may vary between 2.5V and 3.3V within the ClearClock™ AX7 series.

Q: Are the mechanical dimensions identical across all three parts?

A: Yes. All three parts share identical dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) with a maximum seated height of 0.075" (1.90mm). PCB footprint and assembly process remain unchanged.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, carry MSL 1 (Unlimited) rating, and are REACH unaffected. Compliance certifications are identical across the main part and all substitutes.

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

A: MFR Recommended (AX7PBF1-2100.0000C) is the manufacturer's official substitute but requires 2.5V supply. Parametric Equivalent (AX7PAF1-2100.0000C) maintains identical 3.3V supply voltage to the main part, requiring no power supply modifications.

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