AISC-0402F-48NK-T Equivalent & Substitute Parts

Part Overview

The AISC-0402F-48NK-T is a fixed inductor manufactured by Abracon LLC, classified as a 48 nH unshielded drum core, wirewound inductor in 0402 (1005 Metric) surface mount package. This component is rated for 1.1 A maximum current with 78 mOhm maximum DC resistance and operates across the temperature range of -40°C to 85°C.

The AISC-0402F-48NK-T has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor specification.

Substiute Parts

AISC-0402F-48NK-T

Abracon LLCIn Stock: 703AISC-0402F-48NK-T Datasheet

Current PartRFQ

AISC-0402HP-47NJ-T

Abracon LLCIn Stock: 921AISC-0402HP-47NJ-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AISC-0402F-48NK-T are identified based on the following critical parameters that determine functional compatibility:

Package Compatibility: Both the main part and substitute must utilize the 0402 (1005 Metric) surface mount package to ensure mechanical fit on printed circuit boards without redesign.

Inductance Value: The substitute part AISC-0402HP-47NJ-T provides 47 nH inductance, which falls within the tolerance band of the original 48 nH specification when accounting for the ±10% tolerance of the main part (tolerance range: 43.2 nH to 52.8 nH). The 47 nH value with ±5% tolerance (range: 44.65 nH to 49.35 nH) overlaps the original specification range.

Mounting and Shielding: Both parts are surface mount, unshielded drum core wirewound inductors, maintaining identical electromagnetic characteristics and PCB integration requirements.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity in applications subject to these standards.

Current Rating Consideration: The substitute part is rated for 420 mA maximum current, which is lower than the original part's 1.1 A rating. This represents a derating constraint that must be evaluated against application current requirements.

Parameter Comparison

Engineering Selection Recommendations

The AISC-0402HP-47NJ-T serves as an active substitute for the obsolete AISC-0402F-48NK-T based on the following engineering criteria:

Product Status Alignment: The substitute part maintains active product status with Abracon LLC, ensuring continued availability and manufacturing support. The original part's obsolete status necessitates transition to an active equivalent.

Regulatory Compliance Continuity: Both parts maintain identical ROHS3 compliance and REACH unaffected status, supporting applications with regulatory requirements for hazardous substance restrictions.

Package and Form Factor: Identical 0402 (1005 Metric) surface mount packaging ensures direct mechanical compatibility without PCB redesign or assembly process modification.

Inductance Specification Overlap: The 47 nH inductance of the substitute part, with tighter ±5% tolerance, falls within the acceptable inductance range defined by the original part's ±10% tolerance specification.

Application-Dependent Constraints: Selection of the AISC-0402HP-47NJ-T requires evaluation of two critical parameters against application requirements:

The substitute part's maximum current rating of 420 mA is substantially lower than the original part's 1.1 A rating. Applications requiring current levels exceeding 420 mA cannot utilize this substitute without circuit redesign or parallel component configuration.

The substitute part's DC resistance maximum of 550 mOhm exceeds the original part's 78 mOhm maximum by a factor of approximately 7. Applications sensitive to resistive losses or thermal dissipation must evaluate this parameter against circuit performance requirements.

Frequently Asked Questions (FAQ)

Q: Can the AISC-0402HP-47NJ-T be used as a direct replacement for the AISC-0402F-48NK-T?

A: Direct replacement is possible only when application current requirements do not exceed 420 mA and the increased DC resistance of 550 mOhm does not compromise circuit performance. The inductance values are compatible within tolerance specifications, and the package form factor is identical. Applications requiring the original part's 1.1 A current rating require alternative solutions.

Q: What is the inductance tolerance overlap between these parts?

A: The AISC-0402F-48NK-T with ±10% tolerance provides an inductance range of 43.2 nH to 52.8 nH. The AISC-0402HP-47NJ-T with ±5% tolerance provides a range of 44.65 nH to 49.35 nH. The overlap range is 44.65 nH to 49.35 nH, representing compatible inductance specifications for most applications.

Q: How do the DC resistance values affect circuit performance?

A: The substitute part's DC resistance of 550 mOhm maximum is approximately 7 times higher than the original part's 78 mOhm maximum. In high-current or low-impedance circuits, this increased resistance results in greater resistive losses and thermal dissipation. Circuit analysis is required to determine acceptable resistance levels for specific applications.

Q: Are both parts suitable for high-frequency applications?

A: Both parts are unshielded drum core wirewound inductors with self-resonant frequencies in the GHz range (1.4 GHz for the original, 2.4 GHz for the substitute). The substitute part's higher self-resonant frequency may provide improved performance in certain high-frequency applications. Frequency-dependent circuit behavior should be evaluated for specific operating conditions.

Q: What is the impact of the operating temperature range difference?

A: The original part operates from -40°C to 85°C, while the substitute part operates from -40°C to 125°C. The substitute part's extended upper temperature limit provides additional thermal margin. Applications operating within the original part's temperature range experience no functional difference. Applications requiring operation above 85°C benefit from the substitute part's extended range.

Q: Are there packaging differences between these parts?

A: Both parts use 0402 (1005 Metric) surface mount packaging with identical mechanical compatibility. The original part is specified as loose component packaging, while the substitute part is supplied in Tape & Reel (TR) format. This difference affects supply chain handling and assembly automation but does not impact electrical or mechanical performance.

Q: What compliance certifications apply to both parts?

A: Both parts maintain ROHS3 compliance and REACH unaffected status. Moisture sensitivity level is identical at MSL 1 (Unlimited) for both parts. ECCN and HTSUS classifications are identical, supporting regulatory continuity in applications subject to these standards.