AX7DAF1-360.0000C Equivalent & Substitute Parts

Part Overview

The AX7DAF1-360.0000C is a 360 MHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 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 currently discontinued at DiGi Electronics, making substitute components necessary for ongoing production and maintenance applications requiring 360 MHz LVDS oscillation.

Key Parameters

Parameter	Value
Frequency	360 MHz
Output Type	LVDS
Supply Voltage	3.3V
Function	Enable/Disable
Frequency Stability	±25ppm
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Package Type	SMD, No Lead
Physical Dimensions	7.00mm x 5.00mm
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the AX7DAF1-360.0000C is determined by strict equivalence across the following critical parameters:

Frequency: 360 MHz (exact match required)
Output Standard: LVDS (no alternative output types acceptable)
Supply Voltage: 3.3V (no voltage variation permitted)
Function: Enable/Disable capability (required for equivalent operation)
Frequency Stability: ±25ppm (matching tolerance specification)
Operating Temperature Range: -40°C ~ 85°C (full industrial range required)
Mounting: Surface Mount, SMD package format
Physical Footprint: 7.00mm x 5.00mm base dimensions (PCB layout compatibility)
Compliance: ROHS3 Compliant, EAR99 classification

The substitute part 591BB360M000DG from Skyworks Solutions Inc. meets all critical electrical and mechanical parameters. Package configuration differs (6-SMD vs. 8-SMD), but both are No Lead surface mount formats with compatible 7.00mm x 5.00mm footprints suitable for direct PCB substitution.

Parameter Comparison

Parameter	AX7DAF1-360.0000C (Abracon)	591BB360M000DG (Skyworks)	Match Status
Frequency	360 MHz	360 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	-40°C ~ 85°C	-40°C ~ 85°C	Equivalent
Current - Supply (Max)	70mA	100mA	Compatible (Skyworks higher)
Current - Supply (Disable) (Max)	65mA	75mA	Compatible (Skyworks higher)
Package / Case	8-SMD, No Lead	6-SMD, No Lead	Different pin count, same footprint
Physical Dimensions	7.00mm x 5.00mm	7.00mm x 5.00mm	Equivalent
Height - Seated (Max)	1.90mm	1.80mm	Compatible (Skyworks lower)
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
RoHS Status	ROHS3 Compliant	Not specified in data	Skyworks compliance not provided
Product Status	Discontinued at DiGi Electronics	Active	Substitute is active

Engineering Selection Recommendations

The 591BB360M000DG from Skyworks Solutions Inc. (Si591 series) is the qualified substitute for the discontinued AX7DAF1-360.0000C. Selection is based on:

Electrical Equivalence: All critical parameters (frequency, output type, voltage, function, stability, temperature range) are identical.
Active Product Status: The Skyworks part is currently active in production, ensuring supply chain continuity and long-term availability.
Compliance Alignment: Both parts carry EAR99 classification and HTSUS code 8542.39.0001, indicating regulatory equivalence.
Physical Compatibility: Identical 7.00mm x 5.00mm footprint enables direct PCB layout reuse without redesign.
Current Specifications: Skyworks part exhibits higher maximum supply current (100mA vs. 70mA) and disable current (75mA vs. 65mA), which is compatible with designs accommodating the original specifications.
Package Consideration: Pin count differs (6-SMD vs. 8-SMD), requiring verification of schematic connectivity and PCB routing before implementation.

Frequently Asked Questions (FAQ)

Q: Can the 591BB360M000DG be used as a direct drop-in replacement for the AX7DAF1-360.0000C?

A: Electrical substitution is valid. However, the package differs (6-SMD vs. 8-SMD), requiring schematic and PCB verification to confirm pin assignment compatibility before soldering.

Q: What is the primary reason for substitution?

A: The AX7DAF1-360.0000C is discontinued at DiGi Electronics. The 591BB360M000DG provides equivalent electrical performance with active product status and ongoing availability.

Q: Are the frequency and stability specifications identical?

A: Yes. Both parts operate at 360 MHz with ±25ppm frequency stability, ensuring equivalent timing performance in applications requiring this specification.

Q: Does the higher current consumption of the Skyworks part affect circuit design?

A: The Skyworks part draws up to 100mA (vs. 70mA for Abracon) during normal operation. Designs must verify power supply capacity can accommodate this specification. Disable current is also higher (75mA vs. 65mA).

Q: Are there compliance or certification differences?

A: Both parts carry EAR99 export classification and HTSUS code 8542.39.0001. RoHS3 compliance is confirmed for the Abracon part; Skyworks compliance documentation should be verified during procurement.

Q: What is the impact of the different package configurations?

A: Both use 7.00mm x 5.00mm SMD No Lead packages with compatible PCB footprints. The 6-SMD vs. 8-SMD difference requires pin-by-pin schematic verification to ensure signal routing compatibility.

Q: Is the slightly lower height of the Skyworks part (1.80mm vs. 1.90mm) significant?

A: No. The 0.10mm difference is within typical PCB assembly tolerances and does not affect mechanical clearance or thermal performance in standard applications.

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