AISC-1812H-102K-T Equivalent & Substitute Parts

Part Overview

The AISC-1812H-102K-T is a 1 mH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 50 mA maximum current with a maximum DC resistance of 26.4 Ohm. This component is packaged in the 1812 (4532 Metric) surface mount form factor and operates across the temperature range of -25°C to 85°C. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

AISC-1812H-102K-T

Abracon LLCIn Stock: 773AISC-1812H-102K-T Datasheet

Current PartRFQ

LQH43MN102J03L

Murata ElectronicsIn Stock: 2335LQH43MN102J03L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AISC-1812H-102K-T is determined by strict equivalence in the following electrical and mechanical parameters:

• Inductance Value: Must be 1 mH
• Current Rating: Must support minimum 50 mA
• Package / Case: Must be 1812 (4532 Metric) surface mount
• Core Material & Type: Must be ferrite, unshielded drum core
• DC Resistance: Must not exceed 26.4 Ohm maximum
• Self Resonant Frequency: Must be 2 MHz or higher
• Compliance: Must maintain ROHS3 compliance

The substitute part LQH43MN102J03L from Murata Electronics meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The LQH43MN102J03L from Murata Electronics is a direct substitute for the obsolete AISC-1812H-102K-T. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The Murata part offers improved inductance tolerance (±5% versus ±10%) and lower maximum DC resistance (25 Ohm versus 26.4 Ohm), providing superior electrical performance. The extended operating temperature range of the Murata part (-40°C to 85°C versus -25°C to 85°C) provides additional thermal margin for applications requiring lower temperature operation. Both parts share identical package dimensions, footprint, and mounting characteristics, enabling direct PCB-level substitution without layout modification.

Frequently Asked Questions (FAQ)

Q: Can the LQH43MN102J03L be used as a direct replacement for the AISC-1812H-102K-T?

A: Yes. Both inductors share identical inductance values (1 mH), current ratings (50 mA), package form factors (1812 / 4532 Metric), core types (ferrite unshielded drum core), and self-resonant frequencies (2 MHz). The Murata part meets or exceeds all electrical specifications of the Abracon part.

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

A: The primary differences are inductance tolerance (±5% for Murata versus ±10% for Abracon), maximum DC resistance (25 Ohm for Murata versus 26.4 Ohm for Abracon), and operating temperature range (-40°C to 85°C for Murata versus -25°C to 85°C for Abracon). The Murata part provides tighter tolerance and lower resistance characteristics.

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

A: No. Both parts are identical in physical dimensions (0.177" L x 0.126" W, 4.50mm x 3.20mm) and maximum seated height (0.110" / 2.80mm). They use the same 1812 surface mount package, allowing direct footprint compatibility without layout changes.

Q: Do both parts meet current compliance standards?

A: Yes. Both the AISC-1812H-102K-T and LQH43MN102J03L are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What is the moisture sensitivity level for these inductors?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements during storage and handling.