1008HS-333EKFS Equivalent & Substitute Parts

Part Overview

The 1008HS-333EKFS is a 33 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, rated for 160 mA continuous current with 4Ω DC resistance. This surface mount component is designed for applications requiring fixed inductance in compact 1008 (2520 Metric) package form factor.

The 1008HS-333EKFS carries an obsolete product status. Identifying equivalent 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

1008HS-333EKFS

Delta Electronics/ComponentsIn Stock: 10181008HS-333EKFS Datasheet

Current PartRFQ

NLCV25T-330K-EF

TDK CorporationIn Stock: 1080NLCV25T-330K-EF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1008HS-333EKFS are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Inductance value: 33 µH ±10% tolerance
• Package / Case: 1008 (2520 Metric) surface mount
• Core type: Ferrite drum core, unshielded
• Inductance test frequency: 2.52 MHz
• Self-resonant frequency: 16 MHz

Secondary Compatibility Factors:

• Operating temperature range overlap
• RoHS3 compliance and regulatory alignment
• Moisture sensitivity level classification
• DC resistance within acceptable application limits
• Current rating sufficient for circuit requirements

The NLCV25T-330K-EF from TDK Corporation meets the primary matching criteria for inductance, package, core type, and frequency characteristics. Substitution feasibility depends on application-specific current and DC resistance requirements.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The NLCV25T-330K-EF is a direct substitute for the 1008HS-333EKFS when application current requirements do not exceed 120 mA. Both components share identical inductance values, tolerance specifications, core materials, package dimensions, and frequency characteristics.

Compliance Alignment:

Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity classification, ensuring regulatory and environmental compatibility across supply chain transitions.

Product Status Advantage:

The NLCV25T-330K-EF carries active product status from TDK Corporation, providing long-term availability and supply chain stability compared to the obsolete 1008HS-333EKFS.

Application-Specific Considerations:

Substitution is appropriate for applications where:

• Circuit current demand remains at or below 120 mA
• DC resistance increase from 4Ω to 5.46Ω maximum does not impact circuit performance
• Operating temperature range of -40°C to 105°C satisfies design requirements
• Compact physical dimensions (2.50mm x 2.00mm x 1.90mm max height) are compatible with PCB layout

Substitution is not appropriate for applications requiring:

• Current ratings exceeding 120 mA
• DC resistance strictly limited to 4Ω or lower
• Operating temperatures above 85°C with margin requirements

Frequently Asked Questions (FAQ)

Q: Can the NLCV25T-330K-EF replace the 1008HS-333EKFS in all applications?

A: No. The NLCV25T-330K-EF has a maximum current rating of 120 mA compared to the 1008HS-333EKFS rating of 160 mA. Substitution is valid only when circuit current requirements do not exceed 120 mA.

Q: What is the impact of the increased DC resistance in the substitute part?

A: The NLCV25T-330K-EF has a maximum DC resistance of 5.46Ω compared to 4Ω in the original part. This 1.46Ω increase results in higher resistive losses. Circuit analysis is required to determine if this resistance change affects performance in power dissipation, voltage drop, or efficiency-critical applications.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: The NLCV25T-330K-EF is physically smaller than the 1008HS-333EKFS. The substitute measures 2.50mm x 2.00mm x 1.90mm (max height) compared to 2.92mm x 2.79mm x 2.10mm (max height) for the original part. This size reduction is compatible with existing 1008 (2520 Metric) footprints and may provide additional PCB layout flexibility.

Q: What is the difference in Q factor between these parts?

A: The NLCV25T-330K-EF has a Q factor of 30 @ 2.52MHz compared to 20 @ 2.52MHz for the 1008HS-333EKFS. The higher Q factor in the substitute indicates lower losses and improved efficiency at the test frequency.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1008HS-333EKFS and NLCV25T-330K-EF are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, ensuring regulatory compatibility.

Q: What is the advantage of the NLCV25T-330K-EF regarding product status?

A: The NLCV25T-330K-EF carries active product status from TDK Corporation, ensuring continued availability and supply chain support. The 1008HS-333EKFS is obsolete, making the substitute the preferred choice for new designs and ongoing production.

Q: Does the extended operating temperature range of the substitute provide additional design margin?

A: The NLCV25T-330K-EF operates from -40°C to 105°C compared to -40°C to 85°C for the original part. The 20°C upper temperature extension may provide additional margin for applications operating near thermal limits, but this advantage applies only if circuit current remains within the 120 mA maximum rating.