AX97-20150 Equivalent & Substitute Parts

Part Overview

The AX97-20150 is a 15 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 1.5 A continuous current with a maximum DC resistance of 90 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 834 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Key Parameters

Parameter	Value	Unit
Inductance	15	µH
Inductance Tolerance	±20%	-
Current Rating	1.5	A
DC Resistance (Max)	90	mOhm
Core Material	Ferrite	-
Shielding	Unshielded	-
Mounting Type	Surface Mount	-
Operating Temperature Range	-40°C to 85°C	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the AX97-20150 are identified based on the following critical parameters:

Electrical Equivalence Criteria:

Inductance value: 15 µH (within ±20% tolerance specification)
Core material: Ferrite drum core construction
Mounting technology: Surface mount (SMD)
Current rating: Equal to or greater than 1.5 A
DC resistance: Equal to or less than 90 mOhm

Mechanical Compatibility:

Package type: Nonstandard SMD form factor
Wirewound drum core construction

Compliance Requirements:

ROHS3 compliance maintained
Active product status

The SRR1005-150M from Bourns Inc. meets these substitution criteria with enhanced specifications in current rating (1.7 A) and lower DC resistance (85 mOhm), while maintaining the same 15 µH inductance value and ferrite core material.

Parameter Comparison

Parameter	AX97-20150 (Triad Magnetics)	SRR1005-150M (Bourns Inc.)	Compatibility
Inductance	15 µH	15 µH	Equivalent
Inductance Tolerance	±20%	±20%	Equivalent
Current Rating	1.5 A	1.7 A	Substitute rated higher
DC Resistance (Max)	90 mOhm	85 mOhm	Substitute rated lower
Core Material	Ferrite	Ferrite	Equivalent
Type	Drum Core, Wirewound	Drum Core, Wirewound	Equivalent
Shielding	Unshielded	Shielded	Substitute has additional shielding
Mounting Type	Surface Mount	Surface Mount	Equivalent
Operating Temperature Range	-40°C to 85°C	-40°C to 125°C	Substitute rated to higher temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Primary Part Selection (AX97-20150): The AX97-20150 is suitable for applications requiring an unshielded 15 µH inductor with 1.5 A current capacity within the -40°C to 85°C operating range. This part maintains ROHS3 compliance and is actively manufactured with adequate inventory availability.

Substitute Part Selection (SRR1005-150M): The SRR1005-150M from Bourns Inc. provides equivalent inductance and tolerance specifications with improved electrical performance characteristics. The substitute offers a higher current rating (1.7 A versus 1.5 A) and lower DC resistance (85 mOhm versus 90 mOhm maximum). The substitute includes shielding, which may provide electromagnetic interference reduction in sensitive applications. The extended operating temperature range (-40°C to 125°C) accommodates higher thermal environments. Both parts maintain ROHS3 compliance and active production status.

Packaging Consideration: The AX97-20150 is supplied in Box packaging, while the SRR1005-150M is supplied in Tape & Reel format. This difference affects handling, storage, and automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the SRR1005-150M directly replace the AX97-20150 in all applications?

A: The SRR1005-150M meets the core electrical requirements for substitution: identical 15 µH inductance, equivalent ±20% tolerance, higher current rating (1.7 A), and lower DC resistance (85 mOhm). However, the SRR1005-150M includes shielding while the AX97-20150 is unshielded. In applications where unshielded operation is specifically required, the shielding difference must be evaluated. Additionally, the different packaging formats (Box versus Tape & Reel) affect procurement and assembly workflows.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: (1) Inductance value of 15 µH within ±20% tolerance, (2) Current rating equal to or exceeding 1.5 A, (3) DC resistance equal to or less than 90 mOhm maximum, (4) Ferrite core material with drum core wirewound construction, and (5) Surface mount packaging format.

Q: Are there temperature range differences between these parts?

A: Yes. The AX97-20150 operates from -40°C to 85°C, while the SRR1005-150M operates from -40°C to 125°C. The substitute part accommodates higher temperature environments. For applications operating within the -40°C to 85°C range, both parts are functionally equivalent in this parameter.

Q: How does the shielding difference affect circuit performance?

A: The AX97-20150 is unshielded, while the SRR1005-150M is shielded. Shielding reduces electromagnetic field radiation and susceptibility to external electromagnetic interference. In circuits sensitive to EMI or in densely populated PCB layouts, the shielded substitute may provide improved performance. In applications where unshielded operation is required or where the additional shielding is unnecessary, this difference should be considered during design evaluation.

Q: What is the significance of the DC resistance difference?

A: The AX97-20150 has a maximum DC resistance of 90 mOhm, while the SRR1005-150M has a maximum of 85 mOhm. Lower DC resistance reduces resistive losses and heat generation during operation. For applications with tight thermal budgets or high current cycling, the lower resistance of the substitute may provide operational advantages.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the AX97-20150 and SRR1005-150M are ROHS3 compliant, meeting the same environmental and regulatory requirements for lead-free and restricted substance compliance.

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