AX104R-470 Equivalent & Substitute Parts

Part Overview

The AX104R-470 is a 47 µH shielded drum core wirewound inductor manufactured by Triad Magnetics, rated for 2.1 A continuous current with a maximum DC resistance of 128 mOhm. This surface mount component operates across the temperature range of -40°C to 85°C and is ROHS3 compliant. The part is currently in active production status with 1156 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.

Substiute Parts

AX104R-470

Triad MagneticsIn Stock: 1209AX104R-470 Datasheet

Current PartRFQ

SRU1048-470Y

Bourns Inc.In Stock: 6458SRU1048-470Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX104R-470 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 47 µH (within ±30% tolerance specification)
• Core type: Ferrite drum core, wirewound construction
• Shielding: Shielded configuration
• Mounting: Surface mount technology
• Inductance measurement frequency: 100 kHz

Secondary Compatibility Factors:

• Current rating must not fall below the application requirement
• DC resistance must remain within acceptable limits for thermal and efficiency considerations
• Operating temperature range must encompass the application environment
• RoHS and REACH compliance status must match or exceed the original specification

The SRU1048-470Y from Bourns Inc. meets the primary matching criteria with identical inductance value, ferrite core material, shielded configuration, and surface mount packaging. Both parts are measured at 100 kHz and maintain ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

AX104R-470 Selection Criteria:

• Applications requiring continuous current up to 2.1 A
• Operating environments limited to -40°C to 85°C temperature range
• Box packaging preferred for specific assembly or storage requirements
• Lower inventory availability (1156 units)

SRU1048-470Y Selection Criteria:

• Applications with continuous current requirements up to 1.7 A
• Extended operating temperature range to 125°C required
• Tape & Reel packaging suitable for automated assembly processes
• Higher inventory availability (6365 units) supports shorter lead times
• Lower DC resistance (94 mOhm vs. 128 mOhm) reduces thermal dissipation

Both parts maintain ROHS3 compliance and REACH unaffected status. Selection between these parts depends on current rating requirements and operating temperature specifications of the target application. The SRU1048-470Y provides superior thermal characteristics through lower DC resistance and extended temperature operation, while the AX104R-470 supports higher continuous current levels.

Frequently Asked Questions (FAQ)

Q: Can the SRU1048-470Y replace the AX104R-470 in all applications?

A: Substitution is valid only when the application current requirement does not exceed 1.7 A. The AX104R-470 supports 2.1 A continuous current, while the SRU1048-470Y is rated for 1.7 A. If the circuit draws current above 1.7 A, the SRU1048-470Y cannot be used as a direct substitute.

Q: What is the significance of the different DC resistance values?

A: The AX104R-470 has a maximum DC resistance of 128 mOhm, while the SRU1048-470Y measures 94 mOhm. Lower DC resistance reduces I²R losses and heat generation. In applications sensitive to thermal performance, the SRU1048-470Y provides improved efficiency. In high-current applications, the lower resistance of the SRU1048-470Y may be advantageous despite its lower current rating.

Q: Are the physical dimensions compatible?

A: The AX104R-470 measures 10.40mm L × 10.30mm W × 4.00mm H (seated). The SRU1048-470Y measures 10.00mm L × 10.00mm W × 5.10mm H (seated). Both are nonstandard package sizes. PCB layout and component placement must accommodate the dimensional differences, particularly the 1.10mm height difference.

Q: What is the difference between Box and Tape & Reel packaging?

A: Box packaging (AX104R-470) is suitable for manual assembly, kit builds, and low-volume applications. Tape & Reel packaging (SRU1048-470Y) is designed for automated pick-and-place assembly equipment and high-volume production. Packaging selection depends on manufacturing process requirements.

Q: Why does the SRU1048-470Y have a higher operating temperature maximum?

A: The SRU1048-470Y operates to 125°C while the AX104R-470 operates to 85°C. This difference reflects the thermal design and material specifications of each manufacturer. Applications in elevated-temperature environments require the extended range of the SRU1048-470Y.

Q: Are both parts currently available?

A: Both parts are in active production status. The AX104R-470 has 1156 units in stock, while the SRU1048-470Y has 6365 units in stock. Availability may vary by distributor and time of inquiry.