AX97-30681 Equivalent & Substitute Parts Reference

Part Overview

The AX97-30681 is a 680 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 400 mA continuous current with a maximum DC resistance of 2.2Ohm. 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 644 pieces available in stock.

Substitute parts are identified when equivalent inductance values, core materials, mounting types, and operating specifications align within acceptable engineering tolerances, enabling direct functional replacement in circuit applications.

Substiute Parts

AX97-30681

Triad MagneticsIn Stock: 694AX97-30681 Datasheet

Current PartRFQ

SRR1005-681K

Bourns Inc.In Stock: 1634SRR1005-681K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX97-30681 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 680 µH (tolerance range ±20% acceptable)
• Core type: Drum core, wirewound ferrite
• Mounting type: Surface mount
• Operating temperature compatibility: Minimum -40°C to 85°C overlap required

Secondary Compatibility Factors:

• Current rating: Substitute must support minimum 400 mA continuous operation
• DC resistance: Maximum 2.2Ohm preferred; values up to 2.3Ohm acceptable within engineering margin
• RoHS3 compliance: Required for regulatory alignment
• Product status: Active production status preferred

The substitute part SRR1005-681K from Bourns Inc. meets these criteria with matching inductance (680 µH), identical core construction (drum core, wirewound ferrite), and surface mount configuration. While the current rating is lower (260 mA versus 400 mA) and shielding differs (shielded versus unshielded), the part remains functionally equivalent for applications where current requirements do not exceed 260 mA.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (AX97-30681): Select the AX97-30681 for applications requiring 400 mA continuous current operation. This part is RoHS3 compliant and actively produced. The unshielded configuration is suitable for applications where electromagnetic shielding is not a circuit requirement.

Substitute Selection (SRR1005-681K): The SRR1005-681K from Bourns Inc. is functionally equivalent for applications where continuous current does not exceed 260 mA. This substitute offers tighter inductance tolerance (±10% versus ±20%), extended operating temperature range (-40°C to 125°C), and shielded construction. Both parts maintain RoHS3 compliance and active production status. The SRR1005-681K is supplied in Tape & Reel packaging, suitable for automated assembly processes.

Compliance Alignment: Both parts are RoHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can SRR1005-681K directly replace AX97-30681 in all applications?

A: Direct replacement is valid only when circuit current requirements do not exceed 260 mA. The SRR1005-681K has a lower current rating (260 mA) compared to the AX97-30681 (400 mA). If the application requires 400 mA operation, the AX97-30681 must be used.

Q: What is the difference between shielded and unshielded inductors?

A: The AX97-30681 is unshielded; the SRR1005-681K is shielded. Shielding reduces electromagnetic radiation and susceptibility to external magnetic fields. Selection depends on circuit layout and EMI requirements.

Q: Are the inductance values identical?

A: Both parts have 680 µH inductance. However, the AX97-30681 has ±20% tolerance while the SRR1005-681K has ±10% tolerance, providing tighter specification control in the substitute.

Q: What are the packaging differences?

A: The AX97-30681 is supplied in Box packaging; the SRR1005-681K is supplied in Tape & Reel (TR) format. Tape & Reel is standard for automated pick-and-place assembly, while Box packaging is typical for manual or lower-volume applications.

Q: Do both parts operate across the same temperature range?

A: The AX97-30681 operates from -40°C to 85°C. The SRR1005-681K operates from -40°C to 125°C, providing extended high-temperature capability. Both meet the lower temperature limit of -40°C.

Q: Are both parts RoHS3 compliant?

A: Yes, both the AX97-30681 and SRR1005-681K are RoHS3 compliant and REACH unaffected.