AX97-20330 Equivalent & Substitute Parts

Part Overview

The AX97-20330 is a 33 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 1.1 A continuous current with a maximum DC resistance of 210 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 1,068 units in stock.

Substitute parts are identified when equivalent inductance values, current ratings, and core materials are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

AX97-20330

Triad MagneticsIn Stock: 1114AX97-20330 Datasheet

Current PartRFQ

SRR1005-330Y

Bourns Inc.In Stock: 4571SRR1005-330Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX97-20330 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 33 µH (exact match required)
• Core type: Ferrite drum core wirewound construction
• Mounting: Surface mount configuration
• Current rating: Equal to or greater than 1.1 A
• DC resistance: Equal to or less than 210 mOhm

Compliance Requirements:

• RoHS3 compliance status
• REACH unaffected classification
• Active product status

The SRR1005-330Y from Bourns Inc. meets all primary matching criteria with a higher current rating (1.2 A) and lower DC resistance (160 mOhm Max), making it a direct functional substitute. The substitute part features shielding, which provides additional electromagnetic interference rejection compared to the unshielded main part.

Parameter Comparison

Engineering Selection Recommendations

AX97-20330 Selection Criteria:

• Applications requiring unshielded inductor construction
• Designs constrained to operating temperatures not exceeding 85°C
• Procurement from Triad Magnetics supply chain
• Box packaging requirement

SRR1005-330Y Selection Criteria:

• Applications benefiting from shielded construction to reduce electromagnetic interference
• Designs operating across extended temperature range up to 125°C
• Higher current margin requirement (1.2 A rating versus 1.1 A requirement)
• Lower DC resistance specification (160 mOhm versus 210 mOhm)
• Tape & Reel packaging for automated assembly processes
• Procurement from Bourns Inc. supply chain

Both parts maintain active product status and full RoHS3 and REACH compliance. Physical dimensions differ slightly; PCB layout verification is necessary when substituting between these parts due to height variation (3.50mm versus 5.20mm seated height).

Frequently Asked Questions (FAQ)

Q: Can the SRR1005-330Y replace the AX97-20330 in all applications?

A: The SRR1005-330Y meets or exceeds all electrical specifications of the AX97-20330, including inductance, current rating, and DC resistance. The primary differences are shielding (present in substitute), operating temperature range (extended to 125°C), and physical dimensions. PCB layout and thermal environment must be evaluated for compatibility.

Q: What is the impact of shielding on circuit performance?

A: The SRR1005-330Y features shielded construction, which reduces radiated electromagnetic interference compared to the unshielded AX97-20330. This characteristic may improve performance in noise-sensitive applications but does not affect the core inductance or current rating specifications.

Q: Are there packaging differences between these parts?

A: Yes. The AX97-20330 is supplied in Box packaging, while the SRR1005-330Y is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated pick-and-place assembly, whereas Box packaging is suitable for manual or semi-automated processes.

Q: How do the physical dimensions compare?

A: The AX97-20330 measures 13.46mm L x 9.40mm W with a maximum seated height of 3.50mm. The SRR1005-330Y measures 12.70mm L x 10.00mm W with a maximum seated height of 5.20mm. The substitute part is taller by 1.70mm, which may affect PCB layout in space-constrained designs.

Q: What is the difference in inductance tolerance?

A: The AX97-20330 has ±20% tolerance, while the SRR1005-330Y has ±15% tolerance. The substitute part provides tighter inductance tolerance, which may benefit applications requiring more precise inductance values.

Q: Are both parts compliant with current regulations?

A: Yes. Both the AX97-20330 and SRR1005-330Y are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.