AISC-1008-4R7J-T Equivalent & Substitute Parts

Part Overview

The AISC-1008-4R7J-T is a 4.7 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 260 mA with a maximum DC resistance of 4Ohm. This component is designed for surface mount applications in the 1008 (2520 Metric) package format. The part maintains active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance envelope.

Substiute Parts

AISC-1008-4R7J-T

Abracon LLCIn Stock: 2614AISC-1008-4R7J-T Datasheet

Current PartRFQ

LQW2UAS4R7J00L

Murata ElectronicsIn Stock: 5310LQW2UAS4R7J00L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AISC-1008-4R7J-T is determined by strict equivalence across the following critical parameters:

Inductance value of 4.7 µH with ±5% tolerance ensures functional compatibility in the target circuit. Current rating of 260 mA and maximum DC resistance of 4Ohm establish the electrical load capacity. The 1008 (2520 Metric) package format guarantees mechanical fit on the PCB. Surface mount mounting type confirms assembly compatibility. Unshielded configuration matches the electromagnetic environment requirements. Operating temperature range of -40°C to 125°C or broader ensures thermal compatibility. RoHS3 compliance and REACH unaffected status maintain regulatory alignment.

The LQW2UAS4R7J00L from Murata Electronics meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the AISC-1008-4R7J-T and LQW2UAS4R7J00L maintain active product status and full RoHS3 compliance. The Murata LQW2UAS4R7J00L offers an extended lower operating temperature limit of -55°C compared to -40°C for the Abracon part, providing broader thermal coverage. The self-resonant frequency differs at 60MHz versus 50MHz; this variance should be evaluated against specific circuit frequency requirements. Both parts share identical inductance, tolerance, current rating, DC resistance, and Q factor specifications. Physical dimensions differ slightly, with the Murata part measuring 0.103" L x 0.096" W (2.62mm x 2.45mm) and height of 0.080" (2.03mm), compared to the Abracon dimensions of 0.115" L x 0.110" W (2.92mm x 2.79mm) and height of 0.090" (2.29mm). PCB layout and clearance requirements should account for these dimensional differences.

Frequently Asked Questions (FAQ)

Q: Can the LQW2UAS4R7J00L replace the AISC-1008-4R7J-T in all applications?

A: Yes, provided the circuit does not depend on the specific self-resonant frequency of 50MHz. The Murata part operates at 60MHz self-resonance, which may affect performance in high-frequency filtering or impedance matching circuits. Verify compatibility with your specific frequency requirements.

Q: Are there physical compatibility concerns between these parts?

A: Both parts use the 1008 (2520 Metric) package and surface mount configuration. However, the Murata part is slightly smaller in length and width. Verify that your PCB layout accommodates the smaller footprint without creating assembly or thermal management issues.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the AISC-1008-4R7J-T and LQW2UAS4R7J00L are RoHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components.

Q: What is the difference in operating temperature range?

A: The Abracon part operates from -40°C to 125°C, while the Murata part operates from -55°C to 125°C. The Murata part provides extended low-temperature performance, beneficial for applications requiring operation in cold environments.

Q: Are the electrical characteristics identical?

A: The inductance, tolerance, current rating, DC resistance, and Q factor are identical. The self-resonant frequency differs by 10MHz, which may be significant in RF or high-frequency applications. Evaluate this parameter against your circuit design requirements.