ASPI-1306S-221M-T Equivalent & Substitute Parts

Part Overview

The ASPI-1306S-221M-T is a 220 µH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 1.1 A continuous current with a maximum DC resistance of 470mOhm. This surface mount component operates across the temperature range of -40°C to 85°C and is designed for applications requiring controlled electromagnetic shielding in compact form factors. The part maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent inductance values, compatible current ratings, matching core materials, and identical mounting technologies are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

ASPI-1306S-221M-T

Abracon LLCIn Stock: 1014ASPI-1306S-221M-T Datasheet

Current PartRFQ

B82479A1224M000

EPCOS - TDK ElectronicsIn Stock: 1406B82479A1224M000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASPI-1306S-221M-T is determined by the following criteria:

Inductance value must match at 220 µH with ±20% tolerance specification. Current rating of the substitute must meet or exceed the 1.1 A requirement of the main part. Core material composition must remain ferrite-based to maintain electromagnetic performance characteristics. Mounting technology must be surface mount compatible with nonstandard package geometry. Physical dimensions must align within the specified footprint of 18.54mm length by 15.24mm width, with height not exceeding 7.62mm seated maximum.

The identified substitute B82479A1224M000 satisfies these primary substitution criteria through matching inductance, ferrite core construction, surface mount configuration, and compatible physical envelope. Secondary parameters including DC resistance, saturation current, and operating temperature ranges provide additional performance context but do not restrict substitution eligibility when primary criteria are met.

Parameter Comparison

Engineering Selection Recommendations

Both the ASPI-1306S-221M-T and B82479A1224M000 maintain active product status with full RoHS3 compliance and REACH unaffected certification, ensuring regulatory compliance for current and future applications. The substitute part B82479A1224M000 provides improved electrical performance through higher current rating (1.2 A versus 1.1 A) and lower DC resistance (380mOhm versus 470mOhm maximum), resulting in reduced power dissipation and thermal stress during operation.

The primary design consideration between these parts is the shielding configuration. The main part ASPI-1306S-221M-T incorporates shielding, while the substitute B82479A1224M000 is unshielded. Selection between these parts depends on electromagnetic interference (EMI) requirements specific to the application circuit. Applications requiring EMI containment or operating in electromagnetically sensitive environments should retain the shielded ASPI-1306S-221M-T. Applications where EMI shielding is not a design requirement may benefit from the substitute's improved electrical characteristics and wider operating temperature range (-55°C to 150°C versus -40°C to 85°C).

Both parts share identical footprint dimensions and mounting technology, enabling direct physical replacement on PCB layouts without redesign.

Frequently Asked Questions (FAQ)

Q: Can B82479A1224M000 be used as a direct replacement for ASPI-1306S-221M-T?

A: Physical and electrical substitution is possible due to matching inductance (220 µH), identical footprint dimensions (18.54mm x 15.24mm), and compatible current ratings. However, the substitute is unshielded while the main part is shielded. Substitution is appropriate only when EMI shielding is not required by the application design.

Q: What is the impact of the shielding difference?

A: Shielding reduces electromagnetic radiation emission and susceptibility to external electromagnetic fields. The unshielded substitute B82479A1224M000 will not provide this containment. Applications in electromagnetically noisy environments or those requiring EMI compliance may require the shielded main part.

Q: Are there differences in thermal performance?

A: The substitute offers lower DC resistance (380mOhm max versus 470mOhm max), resulting in approximately 19% less resistive heating at rated current. The substitute also supports a wider operating temperature range (-55°C to 150°C versus -40°C to 85°C), providing greater thermal margin in extreme temperature applications.

Q: Do both parts have identical moisture sensitivity?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or reflow processing.

Q: Are there compliance differences between the parts?

A: Both parts are ROHS3 compliant and REACH unaffected. No regulatory compliance differences exist between the main part and substitute.

Q: What is the saturation current difference?

A: The main part saturates at 1.9 A while the substitute saturates at 2.4 A. This 26% higher saturation current in the substitute provides additional margin against core saturation in transient current conditions.