AX97-301R0 Equivalent & Substitute Parts

Part Overview

The AX97-301R0 is a 1 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 8.5 A continuous current with a maximum DC resistance of 10 mOhm. 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 999 pieces available in stock.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining functional compatibility in the target application. Alternative components may be necessary due to inventory constraints, lead time requirements, or specific application demands.

Substiute Parts

AX97-301R0

Triad MagneticsIn Stock: 1017AX97-301R0 Datasheet

Current PartRFQ

SRR1005-1R0M

Bourns Inc.In Stock: 3993SRR1005-1R0M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX97-301R0 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 1 µH (within ±20% tolerance specification)
• Core material: Ferrite
• Mounting type: Surface Mount
• Regulatory compliance: ROHS3 Compliant

Secondary Compatibility Factors:

• Current rating must meet or exceed application requirements
• DC resistance must not exceed maximum allowable values for the circuit design
• Operating temperature range must encompass the application environment
• Package dimensions must fit the PCB layout constraints

The SRR1005-1R0M from Bourns Inc. matches the primary electrical specifications (1 µH inductance, ferrite core, surface mount configuration) and maintains ROHS3 compliance. However, differences in current rating, DC resistance, shielding characteristics, and operating temperature range must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

AX97-301R0 Selection Criteria:

• Applications requiring 8.5 A continuous current capacity
• Circuits where unshielded inductor configuration is acceptable
• Operating environments limited to -40°C to 85°C temperature range
• Designs prioritizing lower DC resistance (10 mOhm maximum)
• Bulk packaging requirements for prototype or low-volume production

SRR1005-1R0M Selection Criteria:

• Applications with current requirements up to 4.5 A
• Circuits benefiting from shielded inductor construction to reduce electromagnetic interference
• Operating environments extending to 125°C maximum temperature
• Production environments utilizing tape and reel packaging for automated assembly
• Applications where higher DC resistance (17 mOhm maximum) is acceptable

Both components maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Selection between these parts depends on specific application current demands, thermal environment, and electromagnetic compatibility requirements.

Frequently Asked Questions (FAQ)

Q: Can the SRR1005-1R0M directly replace the AX97-301R0 in all applications?

A: Direct substitution is not universal. The SRR1005-1R0M has a lower current rating (4.5 A versus 8.5 A) and higher DC resistance (17 mOhm versus 10 mOhm). Substitution is valid only when the application current requirement does not exceed 4.5 A and the circuit design tolerates the increased DC resistance.

Q: What is the significance of shielding differences between these parts?

A: The AX97-301R0 is unshielded, while the SRR1005-1R0M is shielded. Shielding reduces electromagnetic field radiation and susceptibility to external interference. Selection depends on circuit layout, proximity to sensitive components, and EMI requirements.

Q: Are there temperature range limitations for substitution?

A: The AX97-301R0 operates to 85°C maximum, while the SRR1005-1R0M extends to 125°C. If the application environment exceeds 85°C, the AX97-301R0 cannot be used. Conversely, the SRR1005-1R0M is suitable for higher temperature applications.

Q: How do packaging differences affect component selection?

A: The AX97-301R0 is supplied in bulk packaging, suitable for manual assembly or prototype builds. The SRR1005-1R0M is supplied in tape and reel format, optimized for automated pick-and-place assembly in production environments. Packaging selection depends on manufacturing process requirements.

Q: What is the impact of DC resistance differences on circuit performance?

A: DC resistance affects power dissipation and voltage drop across the inductor. The AX97-301R0 with 10 mOhm maximum resistance dissipates less power than the SRR1005-1R0M at 17 mOhm maximum. In high-current applications, this difference becomes significant for thermal management calculations.

Q: Are both parts suitable for high-frequency applications?

A: The SRR1005-1R0M specifies a self-resonant frequency of 120 MHz and Q factor of 25 at 7.96 MHz. The AX97-301R0 does not provide these frequency-dependent parameters. For applications requiring high-frequency performance data, the SRR1005-1R0M offers documented frequency characteristics.