AX97-104R7 Equivalent & Substitute Parts

Part Overview

The AX97-104R7 is a 4.7 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 1.5 A continuous current with a maximum DC resistance of 120mOhm. This surface mount component operates across the temperature range of -40°C to 85°C and is ROHS3 compliant. The part is currently active in production with 978 pieces available in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category. Alternative sources ensure design flexibility, supply chain continuity, and component availability across different procurement channels.

Substiute Parts

AX97-104R7

Triad MagneticsIn Stock: 1069AX97-104R7 Datasheet

Current PartRFQ

SRR6603-4R7ML

Bourns Inc.In Stock: 3639SRR6603-4R7ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX97-104R7 is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value of 4.7 µH within the ±20% tolerance band
• Current rating equal to or greater than 1.5 A
• DC resistance not exceeding 120mOhm maximum specification
• Ferrite drum core construction with wirewound configuration
• Surface mount packaging classification

Mechanical Compatibility Criteria:

• Nonstandard package case compatible with SMD assembly processes
• Physical dimensions suitable for the intended PCB footprint
• Height-seated maximum specification within acceptable assembly clearance

Compliance & Regulatory Criteria:

• ROHS3 compliance certification
• REACH unaffected status
• Active product status in manufacturer portfolio

The substitute part SRR6603-4R7ML meets these substitution criteria through equivalent inductance specification, compatible core construction, surface mount configuration, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (AX97-104R7): The AX97-104R7 remains the primary component choice when the original design specification calls for unshielded construction and the 1.5 A current rating is required. This part maintains active production status with ROHS3 compliance and adequate inventory availability.

Substitute Selection (SRR6603-4R7ML): The SRR6603-4R7ML from Bourns Inc. serves as an equivalent substitute when design requirements permit shielded construction and the 1.4 A current rating is acceptable for the application. The substitute offers superior DC resistance performance (60mOhm versus 120mOhm maximum), extended operating temperature range (-55°C to 125°C), and a smaller physical footprint. Both components maintain ROHS3 compliance and REACH unaffected status.

Application Constraints: Substitution from AX97-104R7 to SRR6603-4R7ML is valid only when the application current demand does not exceed 1.4 A. The shielded construction of the substitute may alter electromagnetic coupling characteristics in sensitive circuit topologies. Physical dimensions differ; PCB layout verification is required to confirm footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can SRR6603-4R7ML replace AX97-104R7 in all applications?

A: Substitution is valid when the application current requirement does not exceed 1.4 A and shielded inductor construction is acceptable. The lower current rating of the substitute is the primary limiting factor. Electromagnetic shielding differences may affect circuit performance in noise-sensitive applications.

Q: What is the significance of the DC resistance difference between these parts?

A: The AX97-104R7 specifies 120mOhm maximum DC resistance, while the SRR6603-4R7ML specifies 60mOhm maximum. Lower DC resistance reduces resistive losses and heat generation during operation. If the application design accounts for the higher resistance of the primary part, the substitute's lower resistance provides improved efficiency.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: The AX97-104R7 measures 7.30mm L x 4.78mm W x 3.23mm H (max seated height). The SRR6603-4R7ML measures 6.60mm L x 4.40mm W x 3.00mm H (max seated height). The substitute has a smaller footprint and lower profile. Existing PCB layouts designed for the primary part will accommodate the substitute without clearance issues. However, pad pattern verification is required to confirm electrical connection compatibility.

Q: What packaging formats are available for each part?

A: The AX97-104R7 is supplied in Box packaging. The SRR6603-4R7ML is supplied in Tape & Reel (TR) format. Packaging format selection depends on assembly process requirements and order quantity thresholds.

Q: Do both parts meet the same regulatory compliance standards?

A: Both the AX97-104R7 and SRR6603-4R7ML are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent between the two parts.

Q: What is the operating temperature range difference?

A: The AX97-104R7 operates from -40°C to 85°C. The SRR6603-4R7ML operates from -55°C to 125°C. The substitute provides a wider temperature operating window, which may be beneficial for applications requiring extended temperature performance.