AX7DAF3-600.0000C Equivalent & Substitute Parts

Part Overview

The AX7DAF3-600.0000C is a 600 MHz XO (Standard) LVDS oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This component 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 substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	AX7DAF3-600.0000C
Manufacturer	Abracon LLC
Series	ClearClock™ AX7
Frequency	600 MHz
Output Type	LVDS
Supply Voltage	3.3V
Function	Enable/Disable
Frequency Stability	±25ppm
Operating Temperature Range	-40°C ~ 85°C
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)
Current - Supply (Max)	70mA
Current - Supply (Disable) (Max)	65mA
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Substitute Part Grouping Explanation

Substitution of the AX7DAF3-600.0000C is determined by strict equivalence across the following critical parameters:

Frequency: 600 MHz (exact match required)
Output Type: LVDS (electrical interface compatibility)
Supply Voltage: 3.3V (power supply compatibility)
Function: Enable/Disable (operational feature match)
Frequency Stability: ±25ppm (timing accuracy specification)
Operating Temperature Range: -40°C ~ 85°C (environmental operating window)
Base Resonator: Crystal (component type)
Type: XO (Standard) (oscillator classification)

The substitute part 590BB600M000DG from Skyworks Solutions Inc. meets all critical electrical and functional parameters. Physical package differences (6-SMD vs. 8-SMD) and minor dimensional variations are noted but do not preclude substitution when PCB layout accommodates the alternative package footprint.

Parameter Comparison

Parameter	AX7DAF3-600.0000C (Abracon)	590BB600M000DG (Skyworks)	Match Status
Frequency	600 MHz	600 MHz	Equivalent
Output Type	LVDS	LVDS	Equivalent
Supply Voltage	3.3V	3.3V	Equivalent
Function	Enable/Disable	Enable/Disable	Equivalent
Frequency Stability	±25ppm	±25ppm	Equivalent
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	Equivalent
Current - Supply (Max)	70mA	100mA	Compatible (higher rating)
Current - Supply (Disable) (Max)	65mA	75mA	Compatible (higher rating)
Package / Case	8-SMD, No Lead	6-SMD, No Lead	Different (footprint verification required)
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)	Equivalent
Height - Seated (Max)	0.075" (1.90mm)	0.071" (1.80mm)	Compatible (lower profile)
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
ECCN	EAR99	EAR99	Equivalent
HTSUS	8542.39.0001	8542.39.0001	Equivalent
Product Status	Discontinued at DiGi Electronics	Active	Substitute is actively available

Engineering Selection Recommendations

The 590BB600M000DG from Skyworks Solutions Inc. is the manufacturer-recommended substitute for the discontinued AX7DAF3-600.0000C. Both parts maintain identical electrical specifications across frequency, output type, supply voltage, function, and frequency stability. Both components are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental handling and regulatory compliance.

The primary design consideration is package footprint compatibility. The substitute uses a 6-SMD package versus the original 8-SMD configuration. PCB layout verification is required to confirm that the alternative package footprint can be accommodated within existing design constraints. The substitute's lower seated height (0.071" vs. 0.075") presents no clearance concerns and may offer advantages in space-constrained applications.

Current consumption ratings for the substitute are higher (100mA max vs. 70mA max), which is compatible with existing power supply designs but should be verified against power budget constraints in the application.

Frequently Asked Questions (FAQ)

Q: Can the 590BB600M000DG directly replace the AX7DAF3-600.0000C without PCB modifications?

A: Electrical compatibility is complete. However, the package footprint differs (6-SMD vs. 8-SMD). PCB layout verification is required to confirm that the alternative footprint can be accommodated. If the original PCB footprint is fixed, physical modifications or a new PCB layout may be necessary.

Q: Are there compliance or regulatory differences between these parts?

A: Both parts are RoHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. No regulatory barriers exist to substitution.

Q: What is the impact of the higher current consumption in the substitute part?

A: The 590BB600M000DG draws up to 100mA compared to 70mA for the original part. This difference must be evaluated against the application's power supply capacity and thermal design. In most cases, this higher rating is compatible with existing power delivery systems.

Q: Are the frequency stability and operating temperature specifications identical?

A: Yes. Both parts specify ±25ppm frequency stability and operate across the -40°C ~ 85°C temperature range. Timing performance and environmental operating windows are equivalent.

Q: What is the significance of the different seated heights?

A: The substitute part has a lower seated height (0.071" vs. 0.075"). This presents no compatibility issues and may provide advantages in applications with tight vertical clearance constraints.

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