AISC-1812H-150K-T Equivalent & Substitute Parts

Part Overview

The AISC-1812H-150K-T is a 15 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 570 mA continuous current with a maximum DC resistance of 540 mOhm. This component is designed for surface mount applications in the 1812 (4532 Metric) package format. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

AISC-1812H-150K-T

Abracon LLCIn Stock: 1060AISC-1812H-150K-T Datasheet

Current PartRFQ

LQH43CN150K03L

Murata ElectronicsIn Stock: 1926LQH43CN150K03L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AISC-1812H-150K-T is determined by the following critical parameters:

• Inductance Value: 15 µH ±10% tolerance
• Current Rating: Minimum 570 mA
• Package Format: 1812 (4532 Metric) surface mount
• Core Material: Ferrite, unshielded drum core wirewound construction
• DC Resistance: Must not exceed 540 mOhm maximum
• Operating Temperature: Must support -25°C ~ 85°C range
• Regulatory Compliance: ROHS3 compliant

The LQH43CN150K03L from Murata Electronics meets all substitution criteria. While this part exhibits lower DC resistance (320 mOhm Max) and an extended lower operating temperature limit (-40°C), these represent improvements over the original specification and do not compromise compatibility.

Parameter Comparison

Engineering Selection Recommendations

The LQH43CN150K03L is a direct functional equivalent for the obsolete AISC-1812H-150K-T. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part offers superior DC resistance performance (320 mOhm versus 540 mOhm), which reduces resistive losses in the circuit. The extended lower operating temperature range (-40°C versus -25°C) provides additional thermal margin for applications requiring operation in cold environments. Both parts maintain identical inductance values, current ratings, package dimensions, and core construction, ensuring direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the LQH43CN150K03L be used as a direct replacement for the AISC-1812H-150K-T without PCB modifications?

A: Yes. Both components use the 1812 (4532 Metric) surface mount package with identical footprint dimensions (0.177" L x 0.126" W, 4.50mm x 3.20mm) and maximum seated height (0.110", 2.80mm). No PCB layout changes are required.

Q: What is the significance of the lower DC resistance in the substitute part?

A: The LQH43CN150K03L exhibits 320 mOhm maximum DC resistance compared to 540 mOhm in the original part. Lower DC resistance reduces I²R losses, improving circuit efficiency and reducing heat generation during operation at rated current levels.

Q: Are there any temperature range limitations when substituting?

A: The substitute part operates across -40°C ~ 85°C, which encompasses the original specification of -25°C ~ 85°C. Applications requiring operation below -25°C benefit from the extended lower temperature limit of the substitute.

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

A: Yes. Both the AISC-1812H-150K-T and LQH43CN150K03L are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1, Unlimited).

Q: What packaging formats are available for the substitute part?

A: The LQH43CN150K03L is supplied in Cut Tape (CT) and Digi-Reel® packaging, differing from the original part's Tape & Reel (TR) format. Verify packaging compatibility with your procurement and assembly processes.