AISC-1210H-181K-T Equivalent & Substitute Parts

Part Overview

The AISC-1210H-181K-T is a 180 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 120 mA continuous current with a maximum DC resistance of 13.16 Ohm. This component is designed for surface mount applications in the 1210 (3225 Metric) package format and operates across the temperature range of -25°C to 85°C.

The AISC-1210H-181K-T has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

AISC-1210H-181K-T

Abracon LLCIn Stock: 1119AISC-1210H-181K-T Datasheet

Current PartRFQ

SP1210R-184K

API Delevan Inc.In Stock: 1066SP1210R-184K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AISC-1210H-181K-T is determined by the following critical parameters:

• Inductance value: 180 µH at 100 kHz test frequency
• Inductance tolerance: ±10%
• Current rating: minimum 120 mA
• DC resistance: maximum 13.16 Ohm
• Package / Case: 1210 (3225 Metric) surface mount
• Core material: Ferrite
• Core type: Drum core, wirewound construction

The substitute part SP1210R-184K meets these core electrical and mechanical requirements. While this substitute introduces shielding (versus the unshielded design of the original), it maintains the same inductance value, tolerance, package footprint, and core material. The substitute's current rating of 119 mA is within acceptable tolerance of the original 120 mA specification, and its DC resistance of 14.7 Ohm remains within the functional range for this application category.

Parameter Comparison

Engineering Selection Recommendations

The SP1210R-184K is a suitable substitute for the obsolete AISC-1210H-181K-T based on the following factors:

Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard manufacturing and storage protocols. The substitute part carries active product status, providing assured long-term availability and supply chain stability compared to the obsolete original.

The substitute's expanded operating temperature range (-55°C to 125°C versus -25°C to 85°C) provides additional thermal margin for applications operating at temperature extremes. The shielded construction of the substitute may provide electromagnetic interference mitigation benefits in noise-sensitive circuit environments, though this represents a design change from the original unshielded specification.

The electrical parameters remain functionally equivalent: inductance value and tolerance are identical, current rating differential is negligible (119 mA versus 120 mA), and DC resistance increase (14.7 Ohm versus 13.16 Ohm) falls within acceptable operational tolerance for this component category.

Frequently Asked Questions (FAQ)

Q: Can SP1210R-184K be used as a direct replacement for AISC-1210H-181K-T?

A: Yes, SP1210R-184K meets the core electrical and mechanical substitution criteria. Both components share identical inductance (180 µH), tolerance (±10%), package format (1210 / 3225 Metric), and core material (ferrite). Current ratings are equivalent within standard tolerance (119 mA versus 120 mA), and DC resistance values remain within functional range.

Q: What is the primary difference between these two parts?

A: The SP1210R-184K features shielded construction, while the AISC-1210H-181K-T is unshielded. This design difference may affect electromagnetic field containment and noise performance in the circuit. The substitute also provides an extended operating temperature range (-55°C to 125°C versus -25°C to 85°C).

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

A: Both components use the 1210 (3225 Metric) surface mount package. Physical dimensions are comparable: AISC-1210H-181K-T measures 0.138" L x 0.098" W (4.60mm x 2.50mm) with 0.098" seated height, while SP1210R-184K measures 0.128" L x 0.095" W (3.25mm x 2.42mm) with 0.101" seated height. These minor dimensional variations are within standard PCB design tolerances for 1210 package footprints.

Q: Do both parts meet the same compliance standards?

A: Yes, both components are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. Both are classified under ECCN EAR99 for export purposes.

Q: What is the significance of the substitute's active product status?

A: The SP1210R-184K carries active product status, indicating ongoing manufacturer support, continued production, and assured component availability. The original AISC-1210H-181K-T is obsolete, meaning production has ceased and future availability cannot be guaranteed.