AISC-1008-R33J-T Equivalent & Substitute Parts

Part Overview

The AISC-1008-R33J-T is a 330 nH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 450 mA with a maximum DC resistance of 1.05Ohm. This surface mount component in 1008 (2520 Metric) package is designed for high-frequency applications and is currently in active production status. 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-R33J-T

Abracon LLCIn Stock: 1890AISC-1008-R33J-T Datasheet

Current PartRFQ

36502CR33JTDG

TE Connectivity Passive ProductIn Stock: 522436502CR33JTDG Datasheet

MFR RecommendedRFQ

LQW2UASR33J00L

Murata ElectronicsIn Stock: 12848LQW2UASR33J00L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AISC-1008-R33J-T are qualified based on the following criteria:

• Inductance value: 330 nH with ±5% tolerance
• Current rating: 450 mA minimum
• DC resistance: 1.05Ohm maximum
• Package: 1008 (2520 Metric) surface mount
• Shielding configuration: Unshielded
• Operating temperature range: -40°C to 125°C minimum
• RoHS3 compliance and MSL 1 rating

The identified substitutes maintain these core electrical and mechanical parameters, ensuring functional equivalence in circuit applications. Variations in core material (ceramic vs. air), Q factor, and self-resonant frequency do not affect substitutability within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

All three inductors meet the core electrical and mechanical requirements for direct substitution. Selection among these parts should be based on:

• Availability: LQW2UASR33J00L (Murata) offers the highest inventory at 12,763 pieces, followed by 36502CR33JTDG (TE Connectivity) at 5,145 pieces, and AISC-1008-R33J-T (Abracon) at 1,809 pieces.
• Compliance certifications: 36502CR33JTDG includes AEC-Q200 automotive qualification, suitable for automotive and high-reliability applications.
• Operating temperature range: LQW2UASR33J00L extends to -55°C, providing wider low-temperature performance compared to the -40°C minimum of the other two parts.
• Physical dimensions: LQW2UASR33J00L has the smallest footprint (2.62mm x 2.45mm) and lowest profile (2.03mm), while AISC-1008-R33J-T and 36502CR33JTDG share identical footprints (2.92mm x 2.79mm) with different heights (2.29mm vs. 2.10mm).

Frequently Asked Questions (FAQ)

Q: Can LQW2UASR33J00L replace AISC-1008-R33J-T in all applications?

A: Yes, within the specified electrical and mechanical parameters. The LQW2UASR33J00L maintains identical inductance, current rating, and DC resistance. The air core construction results in different Q factor and self-resonant frequency characteristics, but these do not affect substitutability for the defined parameter envelope. The smaller physical dimensions may require PCB layout adjustment.

Q: What is the significance of the core material difference between ceramic and air core inductors?

A: Core material affects Q factor and self-resonant frequency but does not impact the primary electrical specifications (inductance, current rating, DC resistance) that define substitutability. The ceramic core AISC-1008-R33J-T and 36502CR33JTDG exhibit higher Q at 100MHz (50 and 45 respectively) compared to the air core LQW2UASR33J00L (45), and lower self-resonant frequency (530MHz vs. 570MHz). These differences are application-dependent and do not prevent functional equivalence.

Q: Is the 36502CR33JTDG suitable for automotive applications?

A: The 36502CR33JTDG carries AEC-Q200 qualification, making it suitable for automotive and high-reliability applications. The AISC-1008-R33J-T and LQW2UASR33J00L do not list automotive certifications in the provided specifications.

Q: How do the physical dimensions affect PCB design?

A: All three parts use the 1008 (2520 Metric) package with identical footprints (2.92mm x 2.79mm or 2.62mm x 2.45mm for Murata). Heights vary: AISC-1008-R33J-T (2.29mm), 36502CR33JTDG (2.10mm), and LQW2UASR33J00L (2.03mm). Height differences may impact clearance in space-constrained designs but do not affect electrical compatibility.

Q: Are all three parts RoHS3 compliant?

A: Yes, all three inductors are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, meeting environmental and reliability standards for commercial and industrial applications.