AX97-302R2 Equivalent & Substitute Parts

Part Overview

The AX97-302R2 is a 2.2 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 7.4 A continuous current with a maximum DC resistance of 20mOhm. 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 1123 units in stock. Substitute parts are identified when equivalent inductance values, current ratings, and core materials are available from alternative manufacturers, enabling design flexibility and supply chain continuity.

Substiute Parts

AX97-302R2

Triad MagneticsIn Stock: 1214AX97-302R2 Datasheet

Current PartRFQ

SRR1005-2R2M

Bourns Inc.In Stock: 1464SRR1005-2R2M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX97-302R2 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 2.2 µH (±20% tolerance band)
• Core material: Ferrite drum core construction
• Mounting type: Surface mount
• Regulatory compliance: ROHS3 compliant

Secondary Compatibility Factors:

• Current rating must support the application requirement
• DC resistance must be within acceptable limits for the circuit design
• Operating temperature range must encompass the application environment
• Package dimensions must fit the PCB layout constraints

The SRR1005-2R2M from Bourns Inc. meets the primary matching criteria with identical inductance value and ferrite core material. However, differences in current rating, DC resistance, shielding configuration, and operating temperature range must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

AX97-302R2 Selection Criteria: The AX97-302R2 is the primary choice for applications requiring a 7.4 A continuous current rating with unshielded drum core construction. The lower DC resistance of 20mOhm Max reduces power dissipation in high-current circuits. This part is suitable for operating environments up to 85°C and is ROHS3 compliant for regulated markets.

SRR1005-2R2M Selection Criteria: The SRR1005-2R2M from Bourns Inc. is suitable for lower-current applications with a 3.1 A continuous rating and 6.1 A saturation current. The shielded configuration reduces electromagnetic interference in sensitive circuits. The extended operating temperature range to 125°C accommodates higher-temperature environments. The higher DC resistance of 27mOhm Max results in increased power dissipation compared to the AX97-302R2. Both parts are ROHS3 compliant and surface mount compatible.

Application-Specific Considerations: Selection between these parts depends on current requirements, thermal environment, EMI sensitivity, and PCB layout constraints. The AX97-302R2 is preferred for high-current, low-loss applications. The SRR1005-2R2M is preferred for shielded, lower-current, or elevated-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can the SRR1005-2R2M replace the AX97-302R2 in all applications?

A: No. The SRR1005-2R2M has a maximum continuous current rating of 3.1 A, compared to 7.4 A for the AX97-302R2. Substitution is only valid for applications where the circuit current does not exceed 3.1 A. Additionally, the higher DC resistance (27mOhm vs. 20mOhm) increases power dissipation.

Q: What is the impact of shielding differences?

A: The AX97-302R2 is unshielded, while the SRR1005-2R2M is shielded. Shielding reduces electromagnetic radiation and susceptibility to external interference. Selection depends on EMI requirements in the specific application.

Q: Are the physical dimensions compatible?

A: The parts have similar but not identical dimensions. The AX97-302R2 measures 13.46mm x 9.40mm x 5.90mm (max height), while the SRR1005-2R2M measures 12.70mm x 10.00mm x 5.20mm (max height). PCB layout verification is required before substitution.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the AX97-302R2 and SRR1005-2R2M are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for restricted substance compliance.

Q: What is the difference in operating temperature ranges?

A: The AX97-302R2 operates from -40°C to 85°C, while the SRR1005-2R2M operates from -40°C to 125°C. The SRR1005-2R2M is suitable for higher-temperature environments, but the AX97-302R2 is adequate for standard industrial and commercial temperature ranges.

Q: How do the inductance test frequencies differ?

A: The AX97-302R2 inductance is tested at 100 kHz, while the SRR1005-2R2M is tested at 1 kHz. Both parts maintain the 2.2 µH ±20% specification within their respective test conditions.