AISC-1210H-2R7N-T Equivalent & Substitute Parts

Part Overview

The AISC-1210H-2R7N-T is a 2.7 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 1.2 A continuous current with a maximum DC resistance of 132mOhm. This component is designed for surface mount applications in the 1210 (3225 Metric) package format. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

AISC-1210H-2R7N-T

Abracon LLCIn Stock: 723AISC-1210H-2R7N-T Datasheet

Current PartRFQ

SP1210R-272K

API Delevan Inc.In Stock: 1217SP1210R-272K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AISC-1210H-2R7N-T is determined by the following critical parameters:

• Inductance Value: Must be 2.7 µH (exact match required)
• Package Format: Must be 1210 (3225 Metric) surface mount
• Core Material: Ferrite drum core construction
• Current Handling: Substitute must support minimum 1.2 A continuous current rating
• DC Resistance: Lower or equivalent DCR values are acceptable; higher values may impact circuit performance
• Environmental Compliance: RoHS3 compliance required for regulatory alignment

The SP1210R-272K from API Delevan Inc. meets these substitution criteria with identical inductance value and package format, though with different electrical characteristics in current rating and DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The SP1210R-272K is an active product from API Delevan Inc. and represents the primary substitute for the obsolete AISC-1210H-2R7N-T. Both components maintain ROHS3 compliance and identical inductance specifications at 2.7 µH in the 1210 package format.

Design considerations for substitution:

• Current Derating: The SP1210R-272K has a lower current rating of 826 mA compared to the original 1.2 A specification. Circuit designs operating at or near 1.2 A will require thermal and current distribution analysis.
• DC Resistance Impact: The substitute exhibits higher DC resistance (305mOhm vs. 132mOhm), resulting in increased power dissipation and potential voltage drop across the inductor.
• Shielding Difference: The substitute is shielded, whereas the original is unshielded. This may affect electromagnetic coupling in sensitive circuit layouts.
• Temperature Range: The substitute supports an extended operating temperature range (-55°C ~ 125°C), providing broader environmental compatibility than the original (-25°C ~ 85°C).
• Inductance Tolerance: The substitute offers tighter tolerance (±10% vs. ±30%), improving circuit predictability.

Frequently Asked Questions (FAQ)

Q: Can the SP1210R-272K directly replace the AISC-1210H-2R7N-T in all applications?

A: Direct replacement is possible only if the circuit design accommodates the lower current rating (826 mA vs. 1.2 A) and higher DC resistance (305mOhm vs. 132mOhm). Applications requiring the full 1.2 A rating or minimal voltage drop require circuit re-evaluation.

Q: What is the impact of the shielding difference?

A: The SP1210R-272K is shielded while the original is unshielded. Shielding reduces electromagnetic radiation and susceptibility to external fields. In circuits sensitive to EMI, the shielded substitute may provide improved performance. In applications where unshielded operation is critical, shielding may alter circuit behavior.

Q: Are both components RoHS compliant?

A: Yes, both the AISC-1210H-2R7N-T and SP1210R-272K are ROHS3 compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: What does the product status difference mean?

A: The original AISC-1210H-2R7N-T is obsolete and no longer manufactured. The SP1210R-272K is active and in production, ensuring long-term availability and supply chain continuity.

Q: How do the inductance tolerances affect circuit design?

A: The original part has ±30% tolerance while the substitute has ±10% tolerance. The tighter tolerance of the substitute reduces inductance variation across production batches, improving circuit consistency and reducing design margin requirements.