AISC-1812H-1R0N-T Equivalent & Substitute Parts

Part Overview

The AISC-1812H-1R0N-T is a 1 µH unshielded drum core wirewound inductor manufactured by Abracon LLC in 1812 (4532 Metric) surface mount package. This component is rated for 1.08 A with a maximum DC resistance of 80mOhm and operates across -25°C to 85°C. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

AISC-1812H-1R0N-T

Abracon LLCIn Stock: 955AISC-1812H-1R0N-T Datasheet

Current PartRFQ

LQH43CN1R0M03L

Murata ElectronicsIn Stock: 3628LQH43CN1R0M03L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AISC-1812H-1R0N-T is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance value: 1 µH (exact match required)
• Current rating: 1.08 A minimum
• DC resistance: 80mOhm maximum
• Package: 1812 (4532 Metric) surface mount
• Core type: Ferrite drum core, wirewound
• Shielding configuration: Unshielded
• Physical dimensions: 0.177" L x 0.126" W (4.50mm x 3.20mm), height 0.110" max (2.80mm)
• Regulatory compliance: ROHS3 compliant

The LQH43CN1R0M03L from Murata Electronics meets all these criteria and is identified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The LQH43CN1R0M03L is a direct functional equivalent to the obsolete AISC-1812H-1R0N-T. Both components satisfy identical electrical specifications for inductance, current rating, and DC resistance. Physical compatibility is confirmed through matching package dimensions and surface mount configuration.

The Murata substitute offers improved inductance tolerance (±20% versus ±30%), which may provide tighter performance margins in applications requiring precision. The extended lower operating temperature limit (-40°C versus -25°C) provides broader environmental coverage. Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and reliability equivalence.

The LQH43CN1R0M03L is currently discontinued at DiGi Electronics but maintains higher inventory availability (3533 pcs) compared to the original part (937 pcs), supporting production continuity.

Frequently Asked Questions (FAQ)

Q: Can the LQH43CN1R0M03L be used as a direct replacement for the AISC-1812H-1R0N-T?

A: Yes. Both components share identical inductance (1 µH), current rating (1.08 A), DC resistance (80mOhm max), package dimensions (1812/4532 Metric), and core material (ferrite drum core, wirewound). Physical and electrical compatibility is confirmed.

Q: What are the differences between these two inductors?

A: The primary differences are inductance tolerance (±20% for Murata versus ±30% for Abracon), operating temperature range (-40°C to 85°C for Murata versus -25°C to 85°C for Abracon), and self-resonant frequency (100MHz for Murata versus 120MHz for Abracon). These differences do not affect functional substitution for applications within the specified operating parameters.

Q: Are there any PCB layout considerations when switching between these parts?

A: No. Both components use identical 1812 (4532 Metric) surface mount package dimensions and footprints. PCB layouts require no modification.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the AISC-1812H-1R0N-T and LQH43CN1R0M03L are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8504.50.8000.

Q: Which part should be selected for new designs?

A: The LQH43CN1R0M03L is the appropriate choice for new designs, as the AISC-1812H-1R0N-T is obsolete. The Murata component provides equivalent performance with improved tolerance specifications and extended temperature range.