1008HC-102EKFS Equivalent & Substitute Parts Reference

Part Overview

The 1008HC-102EKFS is a 1 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, designed for surface mount applications in the 1008 (2520 Metric) package. This component is rated for 800 mA continuous current with a DC resistance of 350 mOhm and operates across the temperature range of -40°C to 85°C.

The 1008HC-102EKFS is classified as obsolete. 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

1008HC-102EKFS

Delta Electronics/ComponentsIn Stock: 9801008HC-102EKFS Datasheet

Current PartRFQ

PM1008-1R0K-RC

Bourns Inc.In Stock: 4052PM1008-1R0K-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1008HC-102EKFS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 1 µH
• Inductance tolerance: ±10%
• Package type: 1008 (2520 Metric)
• Core material: Ferrite
• Shielding configuration: Unshielded
• Mounting type: Surface Mount

Allowable Variation Parameters:

• Current rating: The substitute must support the application's current requirements. The 1008HC-102EKFS is rated for 800 mA; substitutes with lower current ratings require circuit-level evaluation.
• DC resistance: Variations in DCR affect circuit performance and power dissipation. The 1008HC-102EKFS specifies 350 mOhm; substitutes with higher DCR values introduce additional losses.
• Operating temperature range: The 1008HC-102EKFS operates from -40°C to 85°C. Substitutes with extended temperature ranges provide additional design margin.
• Compliance certifications: RoHS3 and REACH status must be maintained for regulated applications.

The PM1008-1R0K-RC from Bourns Inc. meets the mandatory matching parameters and is classified as an active product, providing supply chain continuity for the obsolete 1008HC-102EKFS.

Parameter Comparison

Engineering Selection Recommendations

PM1008-1R0K-RC Selection Criteria:

The PM1008-1R0K-RC is an active product from Bourns Inc., providing immediate supply availability compared to the obsolete 1008HC-102EKFS. Both components share identical inductance values, tolerances, package configurations, and core materials, ensuring mechanical and electrical compatibility at the component level.

Critical Considerations:

The PM1008-1R0K-RC exhibits a current rating of 330 mA, which is 58.75% lower than the 1008HC-102EKFS rating of 800 mA. Applications requiring the full 800 mA current capacity of the original component cannot use this substitute without circuit redesign or parallel configuration analysis.

The PM1008-1R0K-RC specifies a DC resistance of 1.75 Ohm, compared to 350 mOhm in the 1008HC-102EKFS. This 5-fold increase in DCR results in proportionally higher power dissipation and thermal effects. Circuit designs sensitive to inductor losses require thermal and performance re-evaluation.

The PM1008-1R0K-RC supports an extended operating temperature range of -40°C to 125°C, providing 40°C additional margin above the 1008HC-102EKFS specification of -40°C to 85°C.

Both components maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, supporting regulated manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can the PM1008-1R0K-RC directly replace the 1008HC-102EKFS in all applications?

A: Direct replacement is limited by current rating and DC resistance differences. The PM1008-1R0K-RC is suitable only for applications where circuit current does not exceed 330 mA and where the increased DCR of 1.75 Ohm does not compromise circuit performance or thermal specifications.

Q: What is the impact of the 1.75 Ohm DC resistance in the PM1008-1R0K-RC compared to 350 mOhm in the 1008HC-102EKFS?

A: The higher DCR increases power dissipation proportionally with current squared (P = I²R). At 330 mA, the PM1008-1R0K-RC dissipates approximately 190 mW, compared to 38 mW in the 1008HC-102EKFS at the same current. Circuit thermal design and component placement must account for this difference.

Q: Are the physical dimensions compatible between these two inductors?

A: Both components use the 1008 (2520 Metric) package. The PM1008-1R0K-RC specifies dimensions of 0.098" L x 0.079" W (2.50mm x 2.00mm) with a maximum seated height of 0.071" (1.80mm), compared to the 1008HC-102EKFS at 0.115" L x 0.110" W (2.92mm x 2.79mm) with a maximum seated height of 0.083" (2.10mm). Both fit the 1008 package footprint, though the Bourns component is physically smaller.

Q: Do both components meet the same compliance requirements?

A: Yes. Both the 1008HC-102EKFS and PM1008-1R0K-RC are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited) for moisture sensitivity. Both carry ECCN EAR99 classification.

Q: What is the significance of the extended temperature range in the PM1008-1R0K-RC?

A: The PM1008-1R0K-RC operates to 125°C, providing 40°C additional margin above the 1008HC-102EKFS maximum of 85°C. This extended range supports applications in higher ambient temperature environments or components with elevated self-heating characteristics.

Q: Is the PM1008-1R0K-RC available in the same packaging format as the 1008HC-102EKFS?

A: The 1008HC-102EKFS is supplied in standard packaging. The PM1008-1R0K-RC is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Reel specifications and tape dimensions follow IEC 60286 standards for 1008 package components.