Equivalent & Substitute Parts for 1008HS-682EKFS

Part Overview

The 1008HS-682EKFS is a 6.8 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, rated for 300 mA with 1.6Ohm DC resistance in a 1008 (2520 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement continuity. Substitute parts must maintain the same inductance value, package form factor, and core material while accommodating variations in current rating and DC resistance within acceptable application parameters.

Substiute Parts

1008HS-682EKFS

Delta Electronics/ComponentsIn Stock: 9251008HS-682EKFS Datasheet

Current PartRFQ

744758368A

Würth ElektronikIn Stock: 1457744758368A Datasheet

DirectRFQ

744762368A

Würth ElektronikIn Stock: 1951744762368A Datasheet

SimilarRFQ

NLV25T-6R8J-EF

TDK CorporationIn Stock: 5696NLV25T-6R8J-EF Datasheet

SimilarRFQ

NLV25T-6R8J-EFD

TDK CorporationIn Stock: 903NLV25T-6R8J-EFD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory criteria:

Primary Matching Criteria:

• Inductance value: 6.8 µH (exact match required)
• Package / Case: 1008 (2520 Metric) (exact match required)
• Core material: Ferrite, unshielded (exact match required)
• Mounting type: Surface Mount (exact match required)
• Inductance frequency test: 7.96 MHz (exact match required)

Allowable Variation Parameters:

• Current Rating (Amps): Substitute must equal or exceed the main part rating (≥300 mA)
• DC Resistance (DCR): Substitute DCR must be evaluated against application requirements; higher DCR values are acceptable if circuit design permits
• Tolerance: Substitute tolerance of ±5% is acceptable for ±10% specification
• Operating Temperature Range: Substitute range must encompass or exceed the main part range (-40°C ~ 85°C minimum)
• Product Status: Active status preferred for long-term availability

All four substitute parts meet the primary matching criteria. Variations in current rating and DCR are documented in the parameter comparison table for circuit-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

744758368A (Würth Elektronik WE-RFH Series)

This part is the primary direct substitute for applications requiring current ratings at or above 300 mA. The 744758368A provides 360 mA current rating with 2 Ohm maximum DCR, exceeding the main part current specification. Active product status ensures long-term availability. Operating temperature range matches the main part (-40°C ~ 85°C). Physical dimensions are smaller than the main part, which may provide PCB layout advantages. ROHS3 compliance and REACH Unaffected status align with the main part regulatory profile.

744762368A (Würth Elektronik WE-RFI Series)

This part is suitable for applications where current requirements do not exceed 165 mA. The 744762368A exhibits higher DCR (2.8 Ohm maximum) compared to the main part, requiring circuit-level evaluation for power dissipation and impedance matching. Active product status and ROHS3 compliance are maintained. Operating temperature range matches the main part. This substitute is appropriate for lower-current signal conditioning and filtering applications.

NLV25T-6R8J-EF (TDK Corporation NLV-EF Series)

This part is suitable for applications where current requirements do not exceed 165 mA and extended operating temperature range (-40°C ~ 105°C) is beneficial. The NLV25T-6R8J-EF provides equivalent Q factor (25 @ 7.96MHz) to the main part and identical self-resonant frequency (39 MHz). DCR is 2.7 Ohm maximum. Active product status is confirmed. REACH Affected status requires compliance verification in regulated markets. Smaller physical dimensions support compact PCB designs.

NLV25T-6R8J-EFD (TDK Corporation NLV-EFD Series)

This part is the preferred substitute for automotive and high-reliability applications. The NLV25T-6R8J-EFD carries AEC-Q200 qualification, indicating suitability for automotive-grade component requirements. Current rating is 165 mA maximum. Operating temperature range extends to 105°C. DCR is 2.7 Ohm maximum. Q factor and self-resonant frequency match the main part specifications. Active product status and ROHS3 compliance are confirmed. REACH Affected status applies.

Frequently Asked Questions (FAQ)

Q: Can 744758368A directly replace 1008HS-682EKFS in all applications?

A: 744758368A is a direct substitute for applications operating at or below 300 mA. The higher current rating (360 mA) and slightly elevated DCR (2 Ohm maximum versus 1.6 Ohm) are acceptable for most circuit designs. Physical dimensions are smaller, which may require PCB layout verification. Electrical performance at the specified 7.96 MHz test frequency is equivalent.

Q: Why do NLV25T-6R8J-EF and NLV25T-6R8J-EFD have lower current ratings than the main part?

A: These TDK parts are designed for different application segments. The 165 mA current rating reflects their optimization for signal-level filtering and impedance matching rather than power delivery. Selection depends on actual circuit current requirements. If the application requires 300 mA continuous current, these parts are not suitable.

Q: What is the significance of the AEC-Q200 rating on NLV25T-6R8J-EFD?

A: AEC-Q200 is an automotive electronics qualification standard. This rating indicates the part has undergone rigorous testing for reliability, temperature cycling, and environmental stress. Selection of NLV25T-6R8J-EFD is mandatory for automotive applications or systems requiring automotive-grade component certification.

Q: Are there physical compatibility concerns when substituting these parts?

A: All substitute parts use the 1008 (2520 Metric) package form factor. However, physical dimensions vary slightly. The main part measures 0.115" L x 0.110" W, while substitutes measure 0.098" to 0.102" L x 0.079" to 0.083" W. These smaller dimensions are compatible with standard 1008 footprints and typically provide layout advantages. Height differences (0.075" to 0.083") are negligible for surface mount assembly.

Q: What is the impact of higher DCR values in substitute parts?

A: DC resistance affects power dissipation and circuit impedance. The main part specifies 1.6 Ohm; substitutes range from 2.0 to 2.8 Ohm maximum. At 300 mA, the main part dissipates approximately 144 mW; 744758368A dissipates 216 mW maximum. Circuit designs must accommodate this increased dissipation through thermal analysis. For signal-level applications (≤165 mA), DCR impact is minimal.

Q: Which substitute is recommended for new designs?

A: For new designs requiring 300 mA capability, 744758368A (Würth Elektronik WE-RFH) is the primary recommendation due to active status, current rating, and regulatory compliance. For automotive applications, NLV25T-6R8J-EFD (TDK NLV-EFD) is mandatory. For signal-level applications below 165 mA, either TDK part provides superior temperature range and Q factor performance.

Q: Are REACH Affected parts acceptable for procurement?

A: REACH Affected status indicates the part contains substances of concern under EU REACH regulations. Procurement acceptability depends on end-market requirements and customer specifications. Verification with supply chain and regulatory compliance teams is required before selection. REACH Unaffected alternatives (744758368A and 744762368A) are available if REACH compliance is mandatory.