AISC-1210H-820K-T Equivalent & Substitute Parts

Part Overview

The AISC-1210H-820K-T is a 82 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 200 mA continuous current with a maximum DC resistance of 4.58Ohm. This component is designed for surface mount applications in the 1210 (3225 Metric) package format. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing production and design requirements.

Substiute Parts

AISC-1210H-820K-T

Abracon LLCIn Stock: 1038AISC-1210H-820K-T Datasheet

Current PartRFQ

SP1210R-823K

API Delevan Inc.In Stock: 1100SP1210R-823K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AISC-1210H-820K-T is determined by the following critical parameters:

• Inductance Value: Must match 82 µH with ±10% tolerance
• Package Format: Must be 1210 (3225 Metric) surface mount
• Current Rating: Substitute must support minimum 200 mA continuous current
• DC Resistance: Lower DCR values are acceptable; higher values may impact circuit performance
• Core Material: Ferrite core construction is maintained across substitutes
• Compliance: RoHS3 compliance required for regulatory alignment

The SP1210R-823K from API Delevan Inc. meets the inductance, package, and compliance requirements. However, the substitute exhibits reduced current rating (162 mA versus 200 mA) and increased DC resistance (7.9Ohm versus 4.58Ohm), which must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The SP1210R-823K qualifies as a functional substitute based on matching inductance value, package format, and regulatory compliance. Both components maintain ROHS3 compliance and ferrite core construction.

Key considerations for selection:

• Current Derating: The substitute operates at 162 mA maximum versus the original 200 mA specification. Circuit designs operating near or above 162 mA require thermal and performance analysis.
• DC Resistance Impact: The increased DCR (7.9Ohm versus 4.58Ohm) results in higher power dissipation. For applications sensitive to resistive losses, this difference must be quantified against circuit specifications.
• Shielding Difference: The substitute features shielded construction versus the original unshielded design. Shielding reduces electromagnetic interference but may affect circuit behavior in sensitive applications.
• Temperature Range: The substitute supports an extended operating range (-55°C ~ 125°C versus -25°C ~ 85°C), providing greater thermal margin for demanding environments.
• Product Status: The substitute is active production, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the SP1210R-823K directly replace the AISC-1210H-820K-T in all applications?

A: Direct replacement is possible only when circuit current requirements do not exceed 162 mA and the increased DC resistance (7.9Ohm) does not violate performance specifications. Applications operating at or near 200 mA require circuit re-evaluation.

Q: What is the impact of the shielded versus unshielded construction?

A: The substitute's shielded design reduces radiated electromagnetic interference. In circuits where the original unshielded inductor was selected for specific coupling or interference characteristics, shielding may alter circuit behavior and require validation.

Q: Are both parts compatible with the same PCB footprint?

A: Both components use the 1210 (3225 Metric) package format and are surface mount compatible. Physical dimensions are similar (AISC: 4.60mm L x 2.50mm W; SP1210R: 3.25mm L x 2.42mm W), with height differences within typical PCB assembly tolerances (2.50mm versus 2.57mm).

Q: How does the increased DC resistance affect circuit performance?

A: The 72% increase in DCR (4.58Ohm to 7.9Ohm) increases resistive power loss proportionally to current squared. For a 162 mA circuit, power dissipation increases from approximately 120 mW to 207 mW. Thermal management and efficiency calculations must account for this difference.

Q: Is the extended temperature range of the substitute beneficial?

A: The substitute's -55°C ~ 125°C range exceeds the original -25°C ~ 85°C specification, providing additional thermal margin. This is advantageous for applications in extreme environments but does not affect compatibility in standard temperature ranges.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.