1008HS-683EKFS Equivalent & Substitute Parts

Part Overview

The 1008HS-683EKFS is a 68 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, designed for surface mount applications in the 1008 (2520 Metric) package. This component operates at 90 mA current rating with 9.5Ω DC resistance and is characterized by a self-resonant frequency of 12 MHz.

The 1008HS-683EKFS has reached 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-683EKFS

Delta Electronics/ComponentsIn Stock: 7861008HS-683EKFS Datasheet

Current PartRFQ

NLV25T-680J-EF

TDK CorporationIn Stock: 5462NLV25T-680J-EF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1008HS-683EKFS is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 68 µH (tolerance range: 61.2 µH to 74.8 µH at ±10%)
• Package / Case: 1008 (2520 Metric)
• Core material: Ferrite
• Shielding configuration: Unshielded
• Mounting type: Surface Mount
• Inductance test frequency: 2.52 MHz

Secondary Compatibility Factors:

• Current rating must equal or exceed 90 mA
• DC resistance must be compatible with circuit design requirements
• Operating temperature range must support application environment
• Compliance certifications (RoHS3, REACH status)

The substitute part NLV25T-680J-EF from TDK Corporation meets all primary matching criteria and maintains functional equivalence within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The NLV25T-680J-EF is a functional equivalent for the 1008HS-683EKFS based on matching inductance value, package configuration, core material, and shielding characteristics. Both components are ROHS3 compliant and operate within compatible environmental specifications.

Critical Design Considerations:

The NLV25T-680J-EF exhibits a 70 mA current rating, which is 20 mA lower than the original 1008HS-683EKFS specification. Circuit designs operating at or near 90 mA must be re-evaluated to confirm operation within the TDK part's 70 mA maximum rating.

The DC resistance differential (9.5 Ω versus 16.6 Ω maximum) introduces a 7.1 Ω increase. Applications sensitive to resistive losses or thermal dissipation must account for this parameter change.

Compliance Status:

The NLV25T-680J-EF maintains active product status with TDK Corporation, ensuring long-term supply availability and manufacturing continuity. The component is ROHS3 compliant and REACH affected, meeting current regulatory requirements.

The extended operating temperature range (-40°C to 105°C) of the TDK part provides additional thermal margin compared to the original specification (-40°C to 85°C).

Frequently Asked Questions (FAQ)

Q: Can the NLV25T-680J-EF directly replace the 1008HS-683EKFS without circuit modification?

A: Direct replacement is possible only if the circuit operates at or below 70 mA. Applications requiring the full 90 mA rating of the original part require design re-evaluation. The increased DC resistance (16.6 Ω versus 9.5 Ω) must be verified against circuit thermal and performance requirements.

Q: What is the significance of the inductance tolerance difference (±10% versus ±5%)?

A: The TDK part's ±5% tolerance provides tighter inductance control, which may improve circuit performance in applications sensitive to inductance variation. This represents an improvement over the original specification.

Q: Are the physical dimensions compatible between these parts?

A: Both components use the 1008 (2520 Metric) package. The 1008HS-683EKFS measures 0.115" L × 0.110" W × 0.083" H (seated), while the NLV25T-680J-EF measures 0.098" L × 0.079" W × 0.075" H (seated). The TDK part is physically smaller and will fit within the same PCB footprint.

Q: What is the impact of the higher self-resonant frequency (15 MHz versus 12 MHz)?

A: The higher SRF of the TDK part extends the usable frequency range and may reduce parasitic resonance effects in high-frequency applications. This represents a performance advantage for circuits operating near the original part's SRF limit.

Q: Is the NLV25T-680J-EF available in the same packaging format?

A: The NLV25T-680J-EF is supplied in Tape & Reel (TR) format, while the original 1008HS-683EKFS packaging format is not specified in the provided data. Verify packaging compatibility with your procurement and assembly processes.

Q: What compliance certifications apply to the substitute part?

A: The NLV25T-680J-EF is ROHS3 compliant, REACH affected, and classified under ECCN EAR99 with HTSUS code 8504.50.8000. These certifications meet current regulatory requirements for electronic component distribution and use.