AISC-1812H-182K-T Equivalent & Substitute Parts

Part Overview

The AISC-1812H-182K-T is a 1.8 mH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 35 mA maximum current with 58.8Ohm maximum DC resistance. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and production continuity. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

AISC-1812H-182K-T

Abracon LLCIn Stock: 791AISC-1812H-182K-T Datasheet

Current PartRFQ

LQH43NN182K03L

Murata ElectronicsIn Stock: 12747LQH43NN182K03L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AISC-1812H-182K-T are identified based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

• Inductance value: 1.8 mH (±10% tolerance maintained)
• Current rating: 35 mA minimum
• Package: 1812 (4532 Metric) surface mount
• Core type: Ferrite, unshielded drum core wirewound construction
• Physical dimensions: 0.177" L x 0.126" W (4.50mm x 3.20mm), height 0.110" max (2.80mm)
• Compliance: ROHS3 compliant, REACH unaffected

The LQH43NN182K03L from Murata Electronics meets all primary substitution criteria with equivalent inductance, current rating, package configuration, and core material specifications.

Parameter Comparison

Engineering Selection Recommendations

The LQH43NN182K03L is a direct functional equivalent for the obsolete AISC-1812H-182K-T. Both components share identical inductance values, current ratings, package dimensions, and core material specifications. The substitute part offers improved DC resistance performance (45Ohm Max versus 58.8Ohm Max), which reduces power dissipation in the inductor. The extended operating temperature range of the LQH43NN182K03L (-40°C ~ 105°C versus -25°C ~ 85°C) provides additional thermal margin for applications requiring wider temperature operation.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility. The substitute part is currently discontinued at DiGi Electronics but maintains equivalent electrical and mechanical specifications for direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the LQH43NN182K03L be used as a direct replacement for the AISC-1812H-182K-T?

A: Yes. Both components share identical inductance (1.8 mH), current rating (35 mA), package configuration (1812 / 4532 Metric), and core material (ferrite, unshielded drum core). Physical dimensions and mounting characteristics are equivalent, enabling direct PCB substitution.

Q: What is the significance of the DC resistance difference between these parts?

A: The LQH43NN182K03L has lower maximum DC resistance (45Ohm Max) compared to the AISC-1812H-182K-T (58.8Ohm Max). Lower DC resistance reduces resistive losses and heat generation during operation, which is beneficial for power efficiency. Circuit designs accounting for the higher DCR of the original part will operate with improved performance using the substitute.

Q: Are there temperature range considerations for substitution?

A: The LQH43NN182K03L operates across -40°C ~ 105°C, compared to the AISC-1812H-182K-T range of -25°C ~ 85°C. Applications operating within the original temperature range are fully compatible. Applications requiring extended low-temperature operation below -25°C or high-temperature operation above 85°C benefit from the substitute part's wider thermal specification.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the AISC-1812H-182K-T and LQH43NN182K03L are ROHS3 compliant and REACH unaffected, with identical Moisture Sensitivity Level (MSL 1 - Unlimited). Regulatory requirements are maintained across substitution.

Q: What packaging formats are available for the LQH43NN182K03L?

A: The LQH43NN182K03L is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, standard for surface mount component distribution.