AISC-1210H-471K-T Equivalent & Substitute Parts

Part Overview

The AISC-1210H-471K-T is a 470 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 60 mA maximum current with 27.5Ohm maximum DC resistance. This component is designed for surface mount applications in the 1210 (3225 Metric) package format. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

AISC-1210H-471K-T

Abracon LLCIn Stock: 1077AISC-1210H-471K-T Datasheet

Current PartRFQ

744032471

Würth ElektronikIn Stock: 6926744032471 Datasheet

MFR RecommendedRFQ

B82422H1474J000

EPCOS - TDK ElectronicsIn Stock: 4751B82422H1474J000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AISC-1210H-471K-T must satisfy the following core electrical and mechanical criteria:

• Inductance value of 470 µH (tolerance range acceptable per design margin)
• Surface mount package compatible with 1210 (3225 Metric) footprint dimensions
• Current rating sufficient for circuit requirements (minimum 60 mA or higher)
• DC resistance within acceptable limits for the application
• Ferrite drum core construction, unshielded configuration
• Operating temperature range compatible with system requirements
• RoHS3 compliance for regulatory alignment

The two substitute parts identified meet these criteria with variations in current rating, DC resistance, and operating temperature specifications that allow for direct functional replacement in most applications.

Parameter Comparison

Engineering Selection Recommendations

744032471 (Würth Elektronik WE-LQ Series)

This substitute provides active product status with ROHS3 compliance. The current rating of 55 mA is marginally lower than the original 60 mA specification, requiring verification that circuit peak current demands do not exceed this threshold. DC resistance of 25Ohm is lower than the original 27.5Ohm, resulting in reduced power dissipation. The extended operating temperature range of -40°C ~ 125°C provides improved thermal margin compared to the original -25°C ~ 85°C specification.

B82422H1474J000 (EPCOS - TDK SIMID Series)

This substitute offers the highest current rating at 76 mA, exceeding the original 60 mA specification and providing design margin. DC resistance of 20Ohm is the lowest among all options, minimizing resistive losses. The inductance tolerance of ±5% is tighter than the original ±10%, improving circuit predictability. AEC-Q200 automotive qualification is provided. The extended operating temperature range of -55°C ~ 150°C supports demanding thermal environments. Package configuration is specified as 2-SMD, J-Lead with 1210 (3225 Metric) supplier device package, maintaining footprint compatibility.

Both substitutes maintain ferrite drum core construction, unshielded configuration, and 1210 package footprint compatibility. Selection between these options depends on circuit current requirements, thermal environment, and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can the 744032471 be used if my circuit requires 60 mA continuous current?

A: The 744032471 is rated for 55 mA maximum current. If your circuit requires 60 mA continuous operation, this substitute does not meet the current rating specification. The B82422H1474J000 with 76 mA rating would be appropriate.

Q: What is the impact of lower DC resistance in the substitute parts?

A: Lower DC resistance (25Ohm for 744032471, 20Ohm for B82422H1474J000 versus 27.5Ohm for the original) reduces resistive power dissipation in the inductor. This results in lower heat generation and improved efficiency, which is beneficial for most applications.

Q: Are the substitute parts compatible with the original 1210 footprint?

A: Yes. Both substitute parts are specified for 1210 (3225 Metric) package format with compatible physical dimensions. The 744032471 has dimensions of 3.20mm x 2.50mm length and width with 2.30mm maximum seated height. The B82422H1474J000 has dimensions of 3.20mm x 2.50mm length and width with 2.40mm maximum seated height. Both fit within the original footprint envelope.

Q: What is the difference between ±10% and ±5% inductance tolerance?

A: Inductance tolerance specifies the acceptable deviation from the nominal 470 µH value. The original part and 744032471 allow ±10% deviation (423-517 µH range). The B82422H1474J000 allows ±5% deviation (446.5-494.6 µH range), providing tighter inductance control and improved circuit predictability.

Q: Why does the B82422H1474J000 have a lower self-resonant frequency?

A: Self-resonant frequency is determined by the inductor's parasitic capacitance and inductance. The B82422H1474J000 exhibits 4.6 MHz self-resonant frequency compared to 4 MHz for the original and 5 MHz for the 744032471. This parameter affects high-frequency performance characteristics and should be evaluated against circuit operating frequencies.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both substitute parts are ROHS3 compliant, matching the original part's regulatory status.

Q: What does AEC-Q200 qualification mean for the B82422H1474J000?

A: AEC-Q200 is an automotive electronics qualification standard. This certification indicates the B82422H1474J000 has been tested and qualified for automotive applications, providing additional reliability assurance for demanding environments.