AISC-1812H-8R2N-T Equivalent & Substitute Parts

Part Overview

The AISC-1812H-8R2N-T is an 8.2 µH unshielded drum core wirewound inductor manufactured by Abracon LLC in a 1812 (4532 Metric) surface mount package. Designed for 680 mA applications with a maximum DC resistance of 270mOhm, this component operates across -25°C to 85°C. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

AISC-1812H-8R2N-T

Abracon LLCIn Stock: 1072AISC-1812H-8R2N-T Datasheet

Current PartRFQ

744045008

Würth ElektronikIn Stock: 2342744045008 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AISC-1812H-8R2N-T is determined by the following critical parameters:

• Inductance Value: Must be 8.2 µH (exact match required)
• Package / Case: Must be 1812 (4532 Metric) for mechanical and electrical compatibility
• Core Type: Ferrite drum core, unshielded construction
• Mounting Type: Surface mount configuration
• DC Resistance: Must not exceed 270mOhm to maintain circuit performance
• Current Rating: Must support minimum 680 mA operation
• Compliance: RoHS3 compliance required for regulatory alignment

The Würth Elektronik 744045008 meets all substitution criteria with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 744045008 is a direct functional substitute for the obsolete AISC-1812H-8R2N-T. Both components are ROHS3 compliant and share identical mechanical dimensions and inductance specifications. The 744045008 offers superior electrical performance with a higher current rating (1 A vs. 680 mA), lower DC resistance (250mOhm vs. 270mOhm), and an extended operating temperature range (-40°C to 125°C vs. -25°C to 85°C). The active product status of the 744045008 ensures long-term supply chain availability and ongoing manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 744045008 be used as a direct replacement for the AISC-1812H-8R2N-T?

A: Yes. Both components share identical inductance values (8.2 µH), package dimensions (1812 / 4532 Metric), and core material specifications. The 744045008 exceeds the minimum current rating requirement and maintains compliance certifications.

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

A: The 744045008 provides improved electrical performance with higher current saturation (1.6 A), lower DC resistance (250mOhm), tighter inductance tolerance (±20%), and an extended operating temperature range. Height differs by 0.004" (0.10mm), which is negligible for most PCB layouts.

Q: Are there any compatibility concerns with PCB layout or thermal management?

A: No compatibility issues exist. Both components use identical footprints and mounting types. The marginal height difference (0.004") does not impact standard PCB assembly processes or thermal performance in typical applications.

Q: Does the substitute part maintain the same compliance certifications?

A: Yes. Both the AISC-1812H-8R2N-T and 744045008 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings and REACH unaffected status.

Q: Why is the original part listed as obsolete?

A: The AISC-1812H-8R2N-T has been discontinued by Abracon LLC. The 744045008 from Würth Elektronik is an active product with confirmed inventory availability and ongoing manufacturer support.