AX97-10220 Equivalent & Substitute Parts

Part Overview

The AX97-10220 is a 22 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, designed for surface mount applications with a 700 mA current rating and 430mOhm maximum DC resistance. This component is classified as Active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance parameters are maintained within specified tolerances, enabling procurement flexibility and supply chain continuity for this inductance value and current rating category.

Substiute Parts

AX97-10220

Triad MagneticsIn Stock: 969AX97-10220 Datasheet

Current PartRFQ

SRR6603-220ML

Bourns Inc.In Stock: 5747SRR6603-220ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX97-10220 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Matching Criteria (Non-Negotiable):

• Inductance value: 22 µH (exact match)
• Current rating: 700 mA minimum
• Core material: Ferrite drum core wirewound construction
• Mounting type: Surface mount (SMD)
• Inductance tolerance: ±20% or tighter

Secondary Compatibility Criteria:

• DC resistance: 430mOhm maximum (lower values acceptable)
• Operating temperature range: Must encompass -40°C to 85°C minimum
• RoHS3 compliance: Required for regulatory alignment
• Shielding: Unshielded or shielded variants acceptable if electrical parameters remain within specification

The SRR6603-220ML from Bourns Inc. qualifies as a substitute part because it maintains identical inductance (22 µH), current rating (700 mA), tolerance (±20%), core material (ferrite), and mounting type (surface mount), while providing superior DC resistance performance (110mOhm maximum versus 430mOhm maximum) and extended operating temperature range (-55°C to 125°C).

Parameter Comparison

Engineering Selection Recommendations

AX97-10220 (Triad Magnetics) remains the primary specification when:

• Unshielded inductor topology is explicitly required by circuit design
• Packaging in bulk format is preferred for manufacturing workflow
• The standard operating temperature range of -40°C to 85°C is sufficient for application requirements

SRR6603-220ML (Bourns Inc.) is selected as substitute when:

• Reduced DC resistance (110mOhm versus 430mOhm) provides thermal performance advantage in power-sensitive applications
• Extended operating temperature range (-55°C to 125°C) is required for environmental or reliability specifications
• Shielded construction is compatible with or beneficial to circuit layout and EMI performance
• Tape & Reel packaging format aligns with automated assembly processes
• Higher inventory availability (5734 units) supports production scheduling

Both parts maintain Active product status, full RoHS3 compliance, REACH unaffected classification, and EAR99 export control status, ensuring regulatory and supply chain compatibility.

Frequently Asked Questions (FAQ)

Q: Can SRR6603-220ML directly replace AX97-10220 in existing designs?

A: Yes, provided the circuit design does not explicitly require unshielded inductor topology. The SRR6603-220ML maintains identical inductance (22 µH), current rating (700 mA), and tolerance (±20%), with superior DC resistance performance and extended temperature range. Shielded construction may reduce EMI coupling in sensitive circuits.

Q: What is the significance of the DC resistance difference (430mOhm vs. 110mOhm)?

A: DC resistance directly affects power dissipation and thermal performance. At 700 mA, the AX97-10220 dissipates approximately 215.2 mW, while the SRR6603-220ML dissipates approximately 53.9 mW. Lower DC resistance reduces heat generation and improves efficiency in current-limited applications.

Q: Are the physical dimensions compatible for PCB layout?

A: No. The AX97-10220 measures 0.287" L × 0.188" W × 0.127" H (7.30mm × 4.78mm × 3.23mm), while the SRR6603-220ML measures 0.260" L × 0.173" W × 0.118" H (6.60mm × 4.40mm × 3.00mm). PCB footprint and component placement must be verified before substitution.

Q: Does shielding affect circuit performance?

A: Shielding in the SRR6603-220ML reduces magnetic field radiation and susceptibility to external EMI. For circuits sensitive to magnetic coupling or operating in high-EMI environments, shielded construction provides performance benefits. For isolated inductor applications, shielding has minimal impact on electrical performance.

Q: What is the difference between bulk and tape & reel packaging?

A: Bulk packaging (AX97-10220) is suitable for manual assembly or small-volume production. Tape & Reel packaging (SRR6603-220ML) is optimized for automated pick-and-place assembly equipment, reducing handling time and improving production efficiency for high-volume manufacturing.

Q: Are both parts suitable for the same temperature range applications?

A: The AX97-10220 operates from -40°C to 85°C. The SRR6603-220ML operates from -55°C to 125°C. For applications requiring operation below -40°C or above 85°C, only the SRR6603-220ML is suitable. For standard industrial temperature ranges, both parts are compatible.

Q: What is the Q factor and self-resonant frequency significance?

A: The SRR6603-220ML provides Q @ 100kHz = 40 and self-resonant frequency = 25MHz. The AX97-10220 does not specify these parameters. Q factor indicates inductor efficiency at the test frequency; higher Q values represent lower losses. Self-resonant frequency defines the upper frequency limit for linear inductor behavior. These parameters are provided for the substitute part only.