AX97-20471 Equivalent & Substitute Parts

Part Overview

The AX97-20471 is a 470 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 200 mA maximum current with 2.5Ohm DC resistance. 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 1148 units in stock.

Substitute parts are identified when equivalent inductance values, compatible current ratings, and matching mounting technologies are available from alternative manufacturers. Substitution becomes necessary for supply chain continuity, inventory optimization, or when specific performance characteristics of alternative designs better suit application requirements.

Substiute Parts

AX97-20471

Triad MagneticsIn Stock: 1216AX97-20471 Datasheet

Current PartRFQ

SRR1005-471K

Bourns Inc.In Stock: 2158SRR1005-471K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AX97-20471 are identified based on the following critical parameters:

Primary Matching Criteria:

• Inductance value: 470 µH (exact match required)
• Core type: Drum core wirewound construction
• Core material: Ferrite
• Mounting technology: Surface mount
• Compliance: ROHS3 compliant

Secondary Compatibility Factors:

• Current rating: Substitute must equal or exceed 200 mA
• DC resistance: Lower or equal values are acceptable
• Operating temperature range: Must support minimum -40°C to 85°C
• Package type: Nonstandard SMD format

The SRR1005-471K from Bourns Inc. qualifies as a substitute because it maintains the same inductance specification (470 µH), uses identical core construction (ferrite drum core wirewound), employs surface mount technology, and exceeds the current rating requirement (300 mA vs. 200 mA). Both parts are ROHS3 compliant and operate within overlapping temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

Both the AX97-20471 and SRR1005-471K are active production components with full ROHS3 and REACH compliance. Selection between these parts is determined by application-specific requirements:

Select AX97-20471 when:

• Unshielded inductor design is required
• Operating temperature does not exceed 85°C
• Space constraints favor the smaller profile (0.530" L x 0.370" W x 0.138" H)
• Existing designs are qualified to this specific part number

Select SRR1005-471K when:

• Shielded construction is necessary to reduce electromagnetic interference
• Operating temperature range extends to 125°C
• Higher current margin is required (300 mA vs. 200 mA)
• Lower DC resistance (1.6Ohm vs. 2.5Ohm) reduces power dissipation
• Tighter inductance tolerance (±10% vs. ±20%) is specified
• Tape & Reel packaging is preferred for automated assembly

Both parts maintain ferrite drum core wirewound construction and surface mount technology, ensuring mechanical and electrical compatibility within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can SRR1005-471K directly replace AX97-20471 in existing designs?

A: Direct substitution is possible when the application does not require unshielded construction. The SRR1005-471K provides superior electrical performance (lower DCR, higher current rating, tighter tolerance) and extended temperature range. Physical dimensions differ slightly (0.500" L x 0.394" W x 0.205" H vs. 0.530" L x 0.370" W x 0.138" H), requiring PCB layout verification.

Q: What is the primary difference between these two inductors?

A: The SRR1005-471K incorporates shielding, which reduces electromagnetic radiation and susceptibility to external fields. The AX97-20471 is unshielded. The Bourns part also features lower DC resistance (1.6Ohm vs. 2.5Ohm), higher current rating (300 mA vs. 200 mA), and tighter tolerance (±10% vs. ±20%).

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

A: The AX97-20471 operates to 85°C maximum. The SRR1005-471K extends to 125°C, making it suitable for applications requiring higher temperature performance.

Q: What packaging formats are available?

A: AX97-20471 is supplied in Box packaging. SRR1005-471K is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes.

Q: Do both parts meet regulatory compliance requirements?

A: Yes. Both the AX97-20471 and SRR1005-471K are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations.

Q: How do the inductance tolerances compare?

A: AX97-20471 has ±20% tolerance, while SRR1005-471K has ±10% tolerance. The tighter tolerance of the Bourns part provides more precise inductance values for applications requiring strict L-value specifications.