AX97-20680 Equivalent & Substitute Parts

Part Overview

The AX97-20680 is a 68 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, designed for surface mount applications. This component is rated for 700 mA continuous current with a maximum DC resistance of 420 mOhm and operates across the temperature range of -40°C to 85°C. The part is currently active in production and RoHS3 compliant.

Substitute parts are identified when equivalent inductance values, compatible current ratings, and matching mounting technologies are available from alternative manufacturers. Substitution becomes necessary due to inventory availability, lead time considerations, or specific application requirements that may benefit from alternative electrical characteristics within acceptable tolerance ranges.

Substiute Parts

AX97-20680

Triad MagneticsIn Stock: 757AX97-20680 Datasheet

Current PartRFQ

SRR1005-680Y

Bourns Inc.In Stock: 2081SRR1005-680Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AX97-20680 are identified based on the following critical parameters:

Primary Matching Criteria:

• Inductance value: 68 µH (tolerance range ±15% to ±20% acceptable)
• Mounting technology: Surface mount, nonstandard package
• Core construction: Drum core, wirewound, ferrite material
• Current handling capability: Minimum 700 mA rating
• DC resistance: Maximum 420 mOhm or lower
• Compliance: RoHS3 compliant

Substitution Logic: The SRR1005-680Y from Bourns Inc. qualifies as a substitute because it maintains the same 68 µH inductance specification, supports surface mount installation, utilizes ferrite drum core construction, and exceeds the minimum current rating requirement at 820 mA. The substitute part demonstrates improved DC resistance characteristics at 340 mOhm maximum, which is lower than the original specification. Both parts maintain RoHS3 compliance and operate within overlapping temperature ranges suitable for industrial applications.

Parameter Comparison

Engineering Selection Recommendations

AX97-20680 Selection Criteria: Select the AX97-20680 when bulk packaging is required for manufacturing processes that do not utilize automated tape-and-reel handling. This part maintains active production status and RoHS3 compliance, suitable for applications operating within the -40°C to 85°C temperature envelope.

SRR1005-680Y Selection Criteria: The SRR1005-680Y from Bourns Inc. is selected when automated assembly processes require tape-and-reel packaging. This substitute provides measurable advantages including lower DC resistance (340 mOhm vs. 420 mOhm), higher current saturation capability (1.1A), and extended operating temperature range to 125°C. The shielded construction of the SRR1005-680Y offers electromagnetic interference mitigation not present in the unshielded AX97-20680. Both parts maintain RoHS3 compliance and REACH unaffected status.

Physical Dimension Consideration: The SRR1005-680Y exhibits slightly larger seated height (5.20mm vs. 3.50mm) and marginally different footprint dimensions. PCB layout verification is necessary to confirm spatial compatibility in applications with height-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can the SRR1005-680Y directly replace the AX97-20680 in all applications?

A: The SRR1005-680Y is electrically compatible for applications requiring 68 µH inductance at 700 mA or lower current levels. The substitute part exceeds electrical performance specifications with lower DC resistance and higher current rating. Physical dimensions differ slightly; PCB layout must accommodate the increased seated height of 5.20mm compared to 3.50mm for the original part.

Q: What is the significance of the shielded construction in the SRR1005-680Y?

A: The SRR1005-680Y incorporates shielding that reduces electromagnetic field radiation and susceptibility to external interference. The AX97-20680 is unshielded. Applications sensitive to EMI or operating in electromagnetically noisy environments benefit from the shielded substitute. Unshielded designs may be preferred in applications where magnetic field coupling is intentional or where cost optimization is prioritized.

Q: Are there packaging implications when switching between these parts?

A: Yes. The AX97-20680 is supplied in bulk packaging, while the SRR1005-680Y is supplied in tape-and-reel format. Bulk packaging requires manual handling and is suitable for low-volume or prototype assembly. Tape-and-reel packaging integrates with automated pick-and-place assembly systems. Manufacturing process compatibility must be evaluated before substitution.

Q: How do the tolerance specifications affect circuit performance?

A: The AX97-20680 specifies ±20% inductance tolerance, while the SRR1005-680Y specifies ±15%. Tighter tolerance in the substitute part reduces inductance variation across production batches. Applications requiring precise inductance values benefit from the SRR1005-680Y. Applications with wider tolerance margins accept either part without performance degradation.

Q: What is the temperature operating range difference between these parts?

A: The AX97-20680 operates from -40°C to 85°C. The SRR1005-680Y extends the upper limit to 125°C. Applications in high-temperature environments or with thermal margin requirements select the SRR1005-680Y. Standard industrial temperature range applications (-40°C to 85°C) function identically with either part.

Q: Is the lower DC resistance of the SRR1005-680Y always advantageous?

A: Lower DC resistance (340 mOhm vs. 420 mOhm) reduces resistive losses and heat generation in the inductor. This is advantageous in power conversion applications where efficiency is critical. Applications with minimal current flow or where resistive losses are negligible show no practical benefit from the lower resistance specification.