AX97-10101 Equivalent & Substitute Parts

Part Overview

The AX97-10101 is a 100 µH unshielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 280 mA continuous current with a maximum DC resistance of 1.98Ohm. 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 1087 units in stock.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining functional compatibility in the target application circuit.

Key Parameters

Parameter	Value	Unit
Inductance	100	µH
Inductance Tolerance	±20%	-
Current Rating	280	mA
DC Resistance (Max)	1.98	Ohm
Core Type	Drum Core, Ferrite	-
Shielding	Unshielded	-
Operating Temperature Range	-40°C to 85°C	-
Mounting Type	Surface Mount	-
Package Type	Nonstandard SMD	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the AX97-10101 is determined by the following critical parameters:

Primary Matching Criteria:

Inductance value: 100 µH (within ±20% tolerance band)
Inductance test frequency: 100 kHz
Core material: Ferrite
Core type: Drum core, wirewound construction
Mounting technology: Surface mount

Secondary Compatibility Factors:

Current rating must equal or exceed 280 mA
DC resistance must not exceed 1.98Ohm maximum
Operating temperature range must encompass or extend the -40°C to 85°C specification
RoHS3 compliance required
Physical dimensions must be compatible with PCB layout constraints

The SRR6603-101ML from Bourns Inc. meets these substitution criteria with equivalent inductance, superior current rating (300 mA), lower DC resistance (480mOhm), and extended temperature range (-55°C to 125°C).

Parameter Comparison

Parameter	AX97-10101 (Triad Magnetics)	SRR6603-101ML (Bourns Inc.)	Match Status
Inductance	100 µH	100 µH	Equivalent
Inductance Tolerance	±20%	±20%	Equivalent
Current Rating	280 mA	300 mA	Substitute Exceeds
DC Resistance (Max)	1.98 Ohm	480 mOhm	Substitute Superior
Core Type	Drum Core, Ferrite	Drum Core, Ferrite	Equivalent
Shielding	Unshielded	Shielded	Substitute Enhanced
Operating Temperature Range	-40°C to 85°C	-55°C to 125°C	Substitute Extended
Inductance Test Frequency	100 kHz	100 kHz	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Package / Case	Nonstandard	Nonstandard	Equivalent
Size / Dimension	0.287" L x 0.188" W (7.30mm x 4.78mm)	0.260" L x 0.173" W (6.60mm x 4.40mm)	Similar Footprint
Height - Seated (Max)	0.127" (3.23mm)	0.118" (3.00mm)	Compatible

Engineering Selection Recommendations

AX97-10101 Selection Criteria:

Primary choice when unshielded inductor topology is required by circuit design
Suitable for applications operating within -40°C to 85°C temperature envelope
Appropriate for designs with 280 mA current budget constraints
ROHS3 compliance satisfies regulatory requirements for restricted substance control

SRR6603-101ML Selection Criteria:

Preferred substitute when shielded inductor construction reduces electromagnetic interference in sensitive circuits
Extended temperature range (-55°C to 125°C) accommodates industrial and automotive applications
Superior current rating (300 mA) and lower DC resistance (480mOhm) provide thermal margin and reduced power dissipation
Smaller physical footprint (6.60mm x 4.40mm vs 7.30mm x 4.78mm) enables compact PCB layouts
ROHS3 compliance and REACH unaffected status maintain regulatory alignment
Tape & Reel packaging supports high-volume manufacturing workflows

Both parts maintain equivalent inductance specifications at 100 kHz test frequency and are ROHS3 compliant. Physical dimensions are compatible with standard surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can SRR6603-101ML directly replace AX97-10101 in existing designs?

A: Yes, provided the circuit design does not specifically require unshielded inductor characteristics. The SRR6603-101ML offers equivalent inductance, superior current handling, and lower DC resistance. Verify PCB layout accommodates the slightly smaller footprint (6.60mm x 4.40mm vs 7.30mm x 4.78mm).

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

A: The AX97-10101 is unshielded with 1.98Ohm maximum DC resistance and 280 mA current rating. The SRR6603-101ML is shielded with 480mOhm DC resistance and 300 mA current rating. Shielding in the substitute reduces radiated electromagnetic interference.

Q: Are both parts ROHS3 compliant?

A: Yes. Both AX97-10101 and SRR6603-101ML are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What temperature ranges do these inductors support?

A: AX97-10101 operates from -40°C to 85°C. SRR6603-101ML operates from -55°C to 125°C, providing extended range for industrial and automotive applications.

Q: How do the DC resistance values compare?

A: AX97-10101 has maximum DC resistance of 1.98Ohm. SRR6603-101ML has maximum DC resistance of 480mOhm (0.48Ohm). The substitute exhibits significantly lower resistance, reducing power dissipation and heat generation.

Q: Are the physical dimensions compatible with standard PCB assembly?

A: Yes. Both parts use nonstandard SMD packages with compatible heights (3.23mm vs 3.00mm). The SRR6603-101ML footprint is slightly smaller, which may require PCB layout verification but does not prevent substitution.

Q: What packaging formats are available?

A: AX97-10101 is supplied in Box packaging. SRR6603-101ML is supplied in Tape & Reel format, which is standard for high-volume surface mount assembly operations.

Q: Is the inductance tolerance identical between both parts?

A: Yes. Both inductors specify ±20% inductance tolerance at 100 kHz test frequency, ensuring equivalent performance within the tolerance band.

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