1008HS-183EKFS Equivalent & Substitute Parts

Part Overview

The 1008HS-183EKFS is a fixed unshielded drum core wirewound inductor manufactured by Delta Electronics/Components. This component is rated for 18 µH inductance with a 200 mA current rating and 2.8 Ohm DC resistance in a compact 1008 (2520 Metric) surface mount package. The part is classified as obsolete, necessitating identification of active equivalent components for ongoing production and design requirements. Substitute parts must maintain the same inductance value and package footprint while accommodating application-specific current and resistance tolerances.

Substiute Parts

1008HS-183EKFS

Delta Electronics/ComponentsIn Stock: 8421008HS-183EKFS Datasheet

Current PartRFQ

NLV25T-180J-EF

TDK CorporationIn Stock: 2015NLV25T-180J-EF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1008HS-183EKFS is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 18 µH (exact match required)
• Package / Case: 1008 (2520 Metric) (exact match required)
• Core type: Ferrite drum core, wirewound (exact match required)
• Shielding: Unshielded (exact match required)
• Mounting type: Surface Mount (exact match required)

Secondary Compatibility Criteria:

• Current rating: Substitute must equal or exceed application requirements
• DC resistance: Substitute must be compatible with circuit impedance specifications
• Operating temperature range: Substitute must cover or exceed application temperature envelope
• Regulatory compliance: RoHS3 compliance required

The NLV25T-180J-EF from TDK Corporation meets all primary matching criteria. This substitute maintains identical inductance, package geometry, core material, and mounting configuration. Secondary parameters differ within acceptable engineering tolerances for component substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: NLV25T-180J-EF (TDK Corporation)

The NLV25T-180J-EF is the qualified substitute for the obsolete 1008HS-183EKFS. This component is currently in active production status, ensuring long-term availability and supply chain continuity.

Compliance and Regulatory Status: Both components maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity ratings. The NLV25T-180J-EF carries REACH Affected status, whereas the original part is REACH Unaffected. Applications subject to REACH regulatory requirements must account for this distinction.

Physical and Electrical Compatibility: The substitute maintains identical inductance value (18 µH) and package classification (1008 / 2520 Metric). Physical dimensions are slightly smaller for the TDK component, confirming compatibility with existing PCB layouts designed for the Delta part. Both components feature ferrite drum core construction with unshielded configuration.

Current Rating Consideration: The NLV25T-180J-EF is rated for 130 mA maximum current, compared to the original 200 mA rating. Applications requiring current levels exceeding 130 mA cannot use this substitute without circuit redesign or parallel component configuration.

DC Resistance and Thermal Performance: The substitute exhibits higher DC resistance (4.8 Ohm maximum versus 2.8 Ohm), resulting in increased power dissipation. The extended operating temperature range (-40°C to 105°C) provides superior thermal performance compared to the original specification (-40°C to 85°C).

Inductance Tolerance: The substitute offers tighter inductance tolerance (±5% versus ±10%), providing improved circuit performance in applications sensitive to inductance variation.

Frequently Asked Questions (FAQ)

Q: Can the NLV25T-180J-EF directly replace the 1008HS-183EKFS in all applications?

A: Direct replacement is possible only when application current requirements do not exceed 130 mA. The substitute maintains identical inductance, package footprint, and core material. Applications requiring the full 200 mA current rating of the original component require alternative solutions.

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

A: The NLV25T-180J-EF exhibits 4.8 Ohm maximum DC resistance compared to 2.8 Ohm in the original part. This increases resistive losses and power dissipation. Circuit designs sensitive to impedance or requiring minimal losses must evaluate this parameter against application specifications.

Q: Are there physical footprint differences between these components?

A: Both components use the 1008 (2520 Metric) package classification. The NLV25T-180J-EF has slightly smaller physical dimensions (0.098" L x 0.079" W versus 0.115" L x 0.110" W) and lower profile (0.075" maximum height versus 0.083"). These differences do not prevent PCB layout compatibility, as the smaller substitute fits within the original footprint allocation.

Q: What is the significance of the REACH Affected status for the substitute?

A: The NLV25T-180J-EF carries REACH Affected designation, indicating the component or its materials are subject to REACH regulatory requirements. Applications in regulated markets must verify compliance with applicable REACH substance restrictions. The original 1008HS-183EKFS is REACH Unaffected.

Q: How do the inductance tolerances compare?

A: The substitute provides ±5% inductance tolerance compared to ±10% for the original part. This tighter tolerance improves circuit performance in applications where inductance variation affects frequency response or impedance matching.

Q: Is the extended operating temperature range of the substitute beneficial?

A: The NLV25T-180J-EF operates across -40°C to 105°C, compared to -40°C to 85°C for the original component. Applications requiring operation at elevated temperatures benefit from this extended range. Standard applications within the original temperature envelope experience no performance advantage.

Q: What packaging format is available for the substitute?

A: The NLV25T-180J-EF is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The original component packaging format is not specified in available documentation.