AX97-10331 Equivalent & Substitute Parts Reference

Part Overview

The AX97-10331 is a 330 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 150 mA continuous current with a maximum DC resistance of 6.9Ohm. This surface mount component operates across the temperature range of -40°C to 85°C and is specified at 100 kHz inductance frequency. The part is currently active in production with ROHS3 compliance and is available in nonstandard SMD packaging.

Equivalent and substitute parts are identified to address application requirements including higher current ratings, improved DC resistance characteristics, extended temperature operating ranges, or alternative shielding configurations while maintaining the core 330 µH inductance specification and ±20% tolerance.

Substiute Parts

AX97-10331

Triad MagneticsIn Stock: 918AX97-10331 Datasheet

Current PartRFQ

SRR6603-331ML

Bourns Inc.In Stock: 2796SRR6603-331ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX97-10331 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Must Match):

• Inductance value: 330 µH
• Inductance tolerance: ±20%
• Core type: Drum core, wirewound ferrite
• Mounting type: Surface mount
• Inductance test frequency: 100 kHz
• RoHS compliance: ROHS3 Compliant

Secondary Substitution Parameters (Allowable Variation):

• Current rating: Equal to or greater than 150 mA
• DC resistance: Equal to or less than 6.9Ohm
• Operating temperature range: Equal to or exceeding -40°C to 85°C
• Shielding: Unshielded or shielded configurations
• Package dimensions: Nonstandard SMD form factor

The substitute part SRR6603-331ML from Bourns Inc. meets all primary criteria and exceeds secondary electrical performance specifications, making it a valid equivalent for the AX97-10331.

Parameter Comparison

Engineering Selection Recommendations

AX97-10331 (Triad Magnetics) is the primary component specification and remains the preferred selection when:

• Exact dimensional footprint matching is required
• Unshielded configuration is specified in the circuit design
• Original manufacturer continuity is required for supply chain documentation
• The part is available in required quantities and lead times

SRR6603-331ML (Bourns Inc.) is a qualified substitute when:

• Higher current capacity (200 mA versus 150 mA) is beneficial for circuit margin
• Reduced DC resistance (1.4Ohm versus 6.9Ohm maximum) improves power efficiency
• Extended operating temperature range (-55°C to 125°C versus -40°C to 85°C) is required
• Shielded configuration reduces electromagnetic interference in sensitive applications
• Slightly reduced package dimensions (6.60mm x 4.40mm versus 7.30mm x 4.78mm) accommodate space constraints
• Both parts maintain ROHS3 compliance and identical inductance specifications

Both parts are active products with established supply chains and full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can SRR6603-331ML replace AX97-10331 in all applications?

A: SRR6603-331ML meets all primary electrical specifications (330 µH inductance, ±20% tolerance, 100 kHz test frequency, ferrite drum core, surface mount) and exceeds secondary performance parameters. Physical dimensions are slightly smaller (6.60mm x 4.40mm versus 7.30mm x 4.78mm), which may require PCB layout verification. The shielded configuration of SRR6603-331ML provides additional electromagnetic isolation compared to the unshielded AX97-10331.

Q: What are the key differences between these two inductors?

A: The primary differences are: (1) Current rating: SRR6603-331ML is rated for 200 mA versus 150 mA for AX97-10331; (2) DC resistance: SRR6603-331ML maximum 1.4Ohm versus 6.9Ohm for AX97-10331; (3) Shielding: SRR6603-331ML is shielded while AX97-10331 is unshielded; (4) Operating temperature: SRR6603-331ML operates -55°C to 125°C versus -40°C to 85°C for AX97-10331; (5) Package dimensions: SRR6603-331ML is slightly smaller.

Q: Does the shielded configuration of SRR6603-331ML affect circuit performance?

A: Shielding reduces electromagnetic field radiation and susceptibility to external interference. In applications where EMI control is important, the shielded SRR6603-331ML provides additional performance benefits. In applications where shielding is not required, both parts deliver equivalent inductance performance.

Q: Are there any PCB layout considerations when substituting SRR6603-331ML for AX97-10331?

A: The SRR6603-331ML has slightly smaller footprint dimensions (6.60mm x 4.40mm versus 7.30mm x 4.78mm) and lower height (3.00mm versus 3.23mm). PCB pad layouts must be verified for compatibility. The smaller footprint may provide layout flexibility in space-constrained designs.

Q: What is the saturation current specification for SRR6603-331ML?

A: SRR6603-331ML has a saturation current (Isat) specification of 70 mA. This parameter is not provided for AX97-10331. Saturation current defines the point at which inductance begins to degrade under high current conditions.

Q: Are both parts available in the same packaging format?

A: AX97-10331 is supplied in Box packaging, while SRR6603-331ML is supplied in Tape & Reel (TR) format. Both use nonstandard SMD package configurations. Packaging format selection depends on assembly process requirements and volume considerations.