1008HS-181EJFS Equivalent & Substitute Parts

Part Overview

The 1008HS-181EJFS is a 180 nH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, rated for 1.2 A continuous current with 200mOhm DC resistance. This surface mount component is housed in a 1008 (2520 Metric) package and operates across the temperature range of -40°C to 85°C.

The 1008HS-181EJFS is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, design revisions, and inventory replenishment where original stock becomes unavailable.

Substiute Parts

1008HS-181EJFS

Delta Electronics/ComponentsIn Stock: 7941008HS-181EJFS Datasheet

Current PartRFQ

NLV25T-R18J-EF

TDK CorporationIn Stock: 4034NLV25T-R18J-EF Datasheet

SimilarRFQ

NLV25T-R18J-EFD

TDK CorporationIn Stock: 1061NLV25T-R18J-EFD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1008HS-181EJFS are selected based on the following critical parameters that must align with the original component:

Mandatory Matching Parameters:

• Inductance value: 180 nH
• Inductance tolerance: ±5%
• Package / Case: 1008 (2520 Metric)
• Core type: Ferrite drum core, wirewound
• Shielding: Unshielded
• Mounting type: Surface mount
• Q @ Frequency: 30 @ 25.2 MHz
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS3 Compliance

Parameters Permitting Variation:

• Current rating (substitute may have lower rating)
• DC resistance (substitute may have higher resistance)
• Operating temperature range (substitute may have extended range)
• Self resonant frequency (substitute may differ)
• Product status (active substitutes acceptable for obsolete parts)

The substitute parts NLV25T-R18J-EF and NLV25T-R18J-EFD, both manufactured by TDK Corporation, satisfy all mandatory matching parameters. Both are active products with extended temperature ranges and ROHS3 compliance. The primary design consideration is the reduced current rating (460 mA versus 1.2 A) and increased DC resistance (400mOhm Max versus 200mOhm), which must be evaluated against circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

NLV25T-R18J-EF (TDK Corporation): This substitute maintains electrical equivalence for inductance, tolerance, and frequency characteristics. The component is an active product with extended operating temperature range (-40°C to 105°C) and ROHS3 compliance. The reduced current rating (460 mA) and increased DC resistance (400mOhm Max) require circuit-level evaluation to confirm compatibility with application requirements. This part is suitable for applications where current demand does not exceed 460 mA.

NLV25T-R18J-EFD (TDK Corporation): This variant is functionally equivalent to NLV25T-R18J-EF with the addition of AEC-Q200 automotive qualification. The same electrical and thermal characteristics apply. This part is appropriate for automotive and high-reliability applications requiring automotive-grade component certification.

Both TDK substitutes are available in Tape & Reel (TR) packaging, suitable for automated assembly processes. The selection between NLV25T-R18J-EF and NLV25T-R18J-EFD depends on application requirements for automotive qualification and reliability standards.

Frequently Asked Questions (FAQ)

Q: Can NLV25T-R18J-EF or NLV25T-R18J-EFD be used as direct replacements for 1008HS-181EJFS?

A: Both TDK parts are electrically equivalent for inductance value (180 nH), tolerance (±5%), core type, package (1008/2520 Metric), and frequency characteristics. However, the reduced current rating (460 mA versus 1.2 A) and increased DC resistance (400mOhm Max versus 200mOhm) must be evaluated against circuit current requirements and impedance specifications. Direct substitution is valid only when circuit operating current remains below 460 mA.

Q: What is the difference between NLV25T-R18J-EF and NLV25T-R18J-EFD?

A: Both parts are electrically and mechanically identical. The primary distinction is that NLV25T-R18J-EFD carries AEC-Q200 automotive qualification, making it suitable for automotive applications and high-reliability environments. NLV25T-R18J-EF is the standard industrial variant without automotive certification.

Q: Are the physical dimensions compatible between the original and substitute parts?

A: The 1008HS-181EJFS measures 0.115" L x 0.110" W (2.92mm x 2.79mm) with a maximum seated height of 0.083" (2.10mm). The TDK substitutes measure 0.098" L x 0.079" W (2.50mm x 2.00mm) with a maximum seated height of 0.075" (1.90mm). Both parts conform to the 1008 (2520 Metric) package specification and are surface mount compatible. The TDK parts are physically smaller, which may provide layout advantages but requires verification of PCB footprint compatibility.

Q: What compliance certifications apply to these parts?

A: All three parts (1008HS-181EJFS, NLV25T-R18J-EF, and NLV25T-R18J-EFD) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). The NLV25T-R18J-EFD additionally carries AEC-Q200 automotive qualification. The 1008HS-181EJFS is REACH Unaffected, while the TDK parts are REACH Affected.

Q: How do the operating temperature ranges compare?

A: The 1008HS-181EJFS operates from -40°C to 85°C. Both TDK substitutes extend the upper temperature limit to 105°C, providing a 20°C margin for high-temperature applications. The lower temperature limit remains -40°C across all three parts.

Q: What is the impact of increased DC resistance on circuit performance?

A: The TDK substitutes have a maximum DC resistance of 400mOhm compared to 200mOhm for the original part. This doubling of resistance increases power dissipation and voltage drop across the inductor. Applications sensitive to impedance or power loss must evaluate whether the increased DCR remains within acceptable limits for the circuit design.

Q: Are the substitute parts available in the same packaging format?

A: The 1008HS-181EJFS is listed with packaging designation "-" (not specified). Both TDK substitutes are supplied in Tape & Reel (TR) packaging, which is standard for automated assembly. Verify that your assembly process supports Tape & Reel format or confirm alternative packaging availability.