AX02-302R2 Equivalent & Substitute Parts

Part Overview

The AX02-302R2 is a 2.2 µH shielded drum core wirewound inductor manufactured by Triad Magnetics, designed for surface mount applications requiring high current handling. This component is rated for 12 A continuous current with a maximum DC resistance of 5.1 mOhm and operates across the temperature range of -40°C to 85°C. The part maintains Active product status with 1088 pieces available in new original stock.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining compliance with applicable standards and certifications.

Substiute Parts

AX02-302R2

Triad MagneticsIn Stock: 1189AX02-302R2 Datasheet

Current PartRFQ

SRP1250-2R2M

Bourns Inc.In Stock: 5984SRP1250-2R2M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX02-302R2 is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value of 2.2 µH within ±20% tolerance
• Current rating equal to or greater than 12 A
• Saturation current (Isat) equal to or greater than 24 A
• DC resistance (DCR) not exceeding 5.1 mOhm maximum
• Shielded construction to maintain electromagnetic isolation
• Test frequency of 100 kHz

Mechanical and Environmental Criteria:

• Surface mount package configuration
• Operating temperature range encompassing -40°C to 85°C minimum
• RoHS3 compliance for regulatory alignment

The SRP1250-2R2M manufactured by Bourns Inc. meets these substitution criteria with enhanced performance characteristics in current handling and temperature range, while maintaining the same inductance value and shielding configuration.

Parameter Comparison

Engineering Selection Recommendations

AX02-302R2 Selection Criteria:

• Primary choice when box packaging is required for manual assembly or low-volume applications
• Suitable for applications operating within -40°C to 85°C temperature envelope
• Ferrite core construction preferred for specific electromagnetic performance characteristics
• ROHS3 compliance confirmed for regulated environments

SRP1250-2R2M Selection Criteria:

• Preferred for high-volume production requiring tape and reel packaging
• Applications requiring extended temperature operation up to 150°C
• Circuits demanding higher current margins (20 A rating versus 12 A requirement)
• Enhanced saturation current performance (32 A versus 24 A)
• Iron core construction suitable for alternative electromagnetic profiles
• ROHS3 compliance confirmed for regulated environments

Both parts maintain Active product status and full regulatory compliance. Selection between these components depends on packaging format requirements, temperature operating range, and production volume considerations rather than core electrical functionality.

Frequently Asked Questions (FAQ)

Q: Can the SRP1250-2R2M directly replace the AX02-302R2 in existing designs?

A: Electrical substitution is valid based on inductance value, current rating, saturation current, and DC resistance parameters. Physical substitution requires verification of board layout compatibility due to different package dimensions: AX02-302R2 measures 13.30mm L × 15.00mm W × 6.50mm H, while SRP1250-2R2M measures 13.90mm L × 13.50mm W × 5.90mm H.

Q: What is the significance of the different core materials (Ferrite vs. Iron)?

A: Both ferrite and iron core materials provide shielded drum core construction suitable for 2.2 µH inductance at 100 kHz test frequency. Core material selection affects electromagnetic characteristics and thermal performance. The substitute part's iron core with extended temperature rating (-55°C to 150°C) provides broader operational envelope compared to the ferrite core original part (-40°C to 85°C).

Q: Does the higher DC resistance of the SRP1250-2R2M (5.5 mOhm vs. 5.1 mOhm) affect circuit performance?

A: The 0.4 mOhm difference remains within acceptable engineering tolerance for inductor substitution. Both values fall within standard component specifications for this inductance class. Circuit thermal and efficiency impact is negligible for most applications.

Q: What packaging considerations apply to these parts?

A: AX02-302R2 is supplied in box packaging suitable for manual component handling and small-batch assembly. SRP1250-2R2M is supplied in tape and reel format optimized for automated pick-and-place assembly in high-volume manufacturing. Packaging selection depends on production methodology rather than electrical performance.

Q: Are both parts suitable for RoHS3 regulated applications?

A: Yes. Both AX02-302R2 and SRP1250-2R2M carry ROHS3 Compliant certification and are suitable for applications subject to RoHS3 requirements.