L1008C3R3MDMIT Equivalent & Substitute Parts

Part Overview

The L1008C3R3MDMIT is a 3.3 µH shielded multilayer inductor manufactured by KEMET, rated for 1.2 A continuous current with a maximum DC resistance of 120mOhm. This component is packaged in the 1008 (2520 Metric) surface mount form factor and operates across the temperature range of -40°C to 85°C.

The L1008C3R3MDMIT has reached obsolete product status. Identifying equivalent substitute components ensures design continuity and maintains supply chain reliability for applications requiring this inductance value and current rating.

Substiute Parts

L1008C3R3MDMIT

KEMETIn Stock: 3818L1008C3R3MDMIT Datasheet

Current PartRFQ

ASMPH-1008-3R3M-T

Abracon LLCIn Stock: 6519ASMPH-1008-3R3M-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L1008C3R3MDMIT is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 3.3 µH
• Current rating: 1.2 A minimum
• Package / Case: 1008 (2520 Metric)
• Shielding type: Shielded
• Core material: Ferrite
• Mounting type: Surface Mount
• Operating temperature range: -40°C ~ 85°C minimum
• RoHS compliance: ROHS3 Compliant

Allowable Variation:

• DC Resistance (DCR): Substitute parts with DCR equal to or lower than 120mOhm are acceptable, as lower resistance provides equivalent or improved performance
• Tolerance: ±20% tolerance is maintained across all qualified substitutes
• Packaging format: Cut Tape (CT) and Tape & Reel (TR) formats are interchangeable for the same component

The ASMPH-1008-3R3M-T from Abracon LLC meets all mandatory matching parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The ASMPH-1008-3R3M-T from Abracon LLC is a qualified substitute for the obsolete L1008C3R3MDMIT. Selection of this substitute is supported by the following factors:

Compliance and Regulatory Status: Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications subject to environmental restrictions.

Product Availability: The ASMPH-1008-3R3M-T carries active product status with 6502 units in stock, providing reliable supply continuity compared to the obsolete L1008C3R3MDMIT.

Electrical Performance: The substitute component delivers improved DC resistance performance at 100mOhm compared to the 120mOhm maximum of the original part. This reduction in series resistance results in lower power dissipation and improved efficiency in the application circuit.

Physical Compatibility: Both components share identical footprint dimensions (0.098" L x 0.079" W / 2.50mm x 2.00mm) and are rated for the same operating temperature range (-40°C ~ 85°C). The ASMPH-1008-3R3M-T exhibits a lower seated height (0.039" vs 0.079"), which may provide additional clearance benefits in space-constrained PCB layouts.

Moisture and Environmental Handling: Both components maintain MSL 1 (Unlimited) moisture sensitivity classification, indicating no special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the ASMPH-1008-3R3M-T be used as a direct replacement for the L1008C3R3MDMIT?

A: Yes. The ASMPH-1008-3R3M-T meets all mandatory electrical and mechanical parameters required for substitution. Both components share identical inductance (3.3 µH), current rating (1.2 A), tolerance (±20%), package dimensions (1008 / 2520 Metric), and operating temperature range (-40°C ~ 85°C).

Q: What is the significance of the lower DC resistance in the substitute part?

A: The ASMPH-1008-3R3M-T exhibits 100mOhm DC resistance compared to the 120mOhm maximum of the L1008C3R3MDMIT. Lower DC resistance reduces resistive losses in the inductor, resulting in decreased power dissipation and improved circuit efficiency. This represents an improvement over the original specification.

Q: Are there packaging format differences between these components?

A: The L1008C3R3MDMIT is supplied in Cut Tape (CT) & Digi-Reel format, while the ASMPH-1008-3R3M-T is supplied in Tape & Reel (TR) format. Both packaging formats are standard for surface mount components and are compatible with automated assembly equipment. Format selection depends on production volume and assembly process requirements.

Q: Does the lower seated height of the substitute part affect PCB layout?

A: The ASMPH-1008-3R3M-T has a maximum seated height of 0.039" (1.00mm) compared to 0.079" (2.00mm) for the L1008C3R3MDMIT. The lower profile may provide additional clearance in applications with height constraints. PCB layout and component placement remain compatible due to identical footprint dimensions.

Q: Are both components compliant with environmental regulations?

A: Yes. Both the L1008C3R3MDMIT and ASMPH-1008-3R3M-T maintain ROHS3 compliance and REACH unaffected status. Both components carry MSL 1 (Unlimited) moisture sensitivity classification, requiring no special environmental handling or storage conditions.

Q: What is the current saturation rating of the substitute part?

A: The ASMPH-1008-3R3M-T specifies a current saturation (Isat) of 450mA. This parameter indicates the current level at which the inductor begins to exhibit nonlinear behavior due to core saturation. The 1.2 A continuous current rating remains the primary design parameter for circuit selection.