AX104R-100 Equivalent & Substitute Parts

Part Overview

The AX104R-100 is a 10 µH shielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 4.4 A continuous current with a maximum DC resistance of 35 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 644 pieces available in stock.

Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while meeting mechanical and thermal requirements for the application.

Substiute Parts

AX104R-100

Triad MagneticsIn Stock: 702AX104R-100 Datasheet

Current PartRFQ

SRU1048-100Y

Bourns Inc.In Stock: 62202SRU1048-100Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX104R-100 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Inductance value must be 10 µH with tolerance of ±30%
• Current rating must equal or exceed 4.4 A
• DC resistance must not exceed 35 mOhm
• Core material must be ferrite
• Shielding configuration must be shielded

Mechanical Compatibility Requirements:

• Mounting type must be surface mount
• Package classification must be nonstandard drum core type
• Physical dimensions must accommodate the application footprint

Environmental & Compliance Requirements:

• Operating temperature range must encompass -40°C to 85°C minimum
• RoHS3 compliance required
• REACH unaffected status required

The SRU1048-100Y from Bourns Inc. meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: AX104R-100

The AX104R-100 is the specified component and remains the first choice when available. It is active in production, ROHS3 compliant, and REACH unaffected. Current inventory of 644 pieces supports immediate procurement.

Substitute Part: SRU1048-100Y

The SRU1048-100Y qualifies as a direct substitute based on electrical and mechanical parameter equivalence. The substitute part demonstrates superior performance characteristics: current rating of 4.5 A exceeds the 4.4 A requirement, DC resistance of 18.5 mOhm is lower than the 35 mOhm maximum, and operating temperature range extends to 125°C compared to 85°C. Both parts are ROHS3 compliant and REACH unaffected. The SRU1048-100Y is available in significantly higher inventory (62,157 pieces) and is packaged in tape and reel format for automated assembly processes.

Physical dimensions differ slightly: the SRU1048-100Y measures 10.00mm x 10.00mm with 5.10mm height versus the AX104R-100 at 10.40mm x 10.30mm with 4.00mm height. Footprint compatibility must be verified for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the SRU1048-100Y replace the AX104R-100 in all applications?

A: The SRU1048-100Y meets all electrical and compliance requirements for substitution. However, physical dimensions differ. The substitute part is slightly smaller in footprint (10.00mm x 10.00mm versus 10.40mm x 10.30mm) but taller (5.10mm versus 4.00mm). PCB layout and clearance constraints must be evaluated for your specific application.

Q: What are the key electrical differences between these parts?

A: Both inductors provide 10 µH inductance at 100 kHz with ±30% tolerance. The SRU1048-100Y offers lower DC resistance (18.5 mOhm versus 35 mOhm maximum) and higher current rating (4.5 A versus 4.4 A), resulting in reduced power dissipation and improved thermal performance.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the AX104R-100 and SRU1048-100Y are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the temperature operating range difference?

A: The AX104R-100 operates from -40°C to 85°C. The SRU1048-100Y extends the upper limit to 125°C, providing greater thermal margin for high-temperature applications.

Q: What packaging formats are available?

A: The AX104R-100 is supplied in box packaging. The SRU1048-100Y is available in tape and reel format, which is standard for automated surface mount assembly processes.

Q: How do I verify physical compatibility?

A: Compare the PCB footprint requirements with the provided dimensions. AX104R-100: 10.40mm L x 10.30mm W x 4.00mm H (max seated height). SRU1048-100Y: 10.00mm L x 10.00mm W x 5.10mm H (max seated height). Verify clearance above and around the component for your specific board layout.