1008HC-272EJFS Equivalent & Substitute Parts Reference

Part Overview

The 1008HC-272EJFS is a 2.7 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, rated for 500 mA continuous current with 700 mOhm DC resistance. This surface mount component is housed in a 1008 (2520 Metric) package and operates across the -40°C to 85°C temperature range.

The 1008HC-272EJFS is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductance value and current rating.

Substiute Parts

1008HC-272EJFS

Delta Electronics/ComponentsIn Stock: 10821008HC-272EJFS Datasheet

Current PartRFQ

744758327A

Würth ElektronikIn Stock: 3338744758327A Datasheet

DirectRFQ

AISC-1008F-2R7J-T

Abracon LLCIn Stock: 3052AISC-1008F-2R7J-T Datasheet

DirectRFQ

NLV25T-2R7J-EF

TDK CorporationIn Stock: 2473NLV25T-2R7J-EF Datasheet

SimilarRFQ

NLV25T-2R7J-EFD

TDK CorporationIn Stock: 2947NLV25T-2R7J-EFD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1008HC-272EJFS is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 2.7 µH with ±5% tolerance
• Package / Case: 1008 (2520 Metric) surface mount
• Core material: Ferrite, unshielded drum core construction
• Mounting type: Surface mount

Secondary Compatibility Factors:

• Current rating: Minimum 490 mA (acceptable range for 500 mA rated applications)
• DC resistance: Acceptable range 700 mOhm to 1.3 Ohm maximum
• Operating temperature: Minimum -40°C to 85°C coverage
• RoHS3 compliance and MSL 1 rating

Substitute parts are classified into two categories:

Direct Substitutes (744758327A, AISC-1008F-2R7J-T): Meet or exceed all primary matching criteria with current ratings of 520 mA and 490 mA respectively. These parts maintain the same inductance, package, and core type while offering active product status and improved availability.

Similar Substitutes (NLV25T-2R7J-EF, NLV25T-2R7J-EFD): Meet primary matching criteria but feature reduced current ratings (195 mA). These parts are suitable only for applications where the 500 mA current requirement can be reduced or where the lower current rating is acceptable for the circuit design.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Preferred):

The 744758327A (Würth Elektronik WE-RFH series) and AISC-1008F-2R7J-T (Abracon AISC-1008F series) are recommended as primary substitutes. Both parts maintain active product status, ensuring long-term supply availability. The 744758327A provides the highest current rating at 520 mA, exceeding the original 500 mA specification. The AISC-1008F-2R7J-T delivers 490 mA, meeting the minimum current requirement. Both parts are ROHS3 compliant with MSL 1 rating, matching the environmental and regulatory profile of the original component.

For Automotive and High-Reliability Applications:

The NLV25T-2R7J-EFD (TDK Corporation NLV-EFD series) is suitable when AEC-Q200 automotive qualification is required. This part carries AEC-Q200 rating, providing enhanced reliability documentation for automotive and mission-critical applications. However, the 195 mA current rating restricts its use to circuits where current requirements can be reduced or where the lower rating is acceptable.

For General Industrial Applications with Extended Temperature Range:

Both TDK NLV25T variants (NLV25T-2R7J-EF and NLV25T-2R7J-EFD) offer extended operating temperature to 105°C, compared to the original 85°C maximum. This extended range is beneficial for applications requiring higher temperature operation, provided the 195 mA current limitation is acceptable.

Consideration of DC Resistance:

The original 1008HC-272EJFS exhibits 700 mOhm DCR. Substitute parts show increased DCR values (1.1 Ohm to 1.7 Ohm maximum). Circuit designs sensitive to inductor losses or thermal dissipation must account for this increase in DC resistance when selecting substitutes.

Frequently Asked Questions (FAQ)

Q: Can the 744758327A directly replace the 1008HC-272EJFS in all applications?

A: The 744758327A matches all primary substitution criteria: 2.7 µH inductance, 1008 (2520 Metric) package, ferrite unshielded core, and surface mount configuration. The 520 mA current rating exceeds the original 500 mA specification. However, the increased DC resistance (1.1 Ohm maximum versus 700 mOhm) must be evaluated for applications where inductor losses impact circuit performance or thermal management.

Q: Why do the TDK NLV25T parts have lower current ratings?

A: The NLV25T-2R7J-EF and NLV25T-2R7J-EFD are rated for 195 mA continuous current, significantly lower than the original 500 mA. These parts are suitable only for circuits where the current requirement is 195 mA or less, or where the inductor operates at reduced current levels. They cannot be used as direct substitutes in applications requiring the full 500 mA current capacity.

Q: What is the difference between NLV25T-2R7J-EF and NLV25T-2R7J-EFD?

A: Both parts are electrically identical with 2.7 µH inductance, 195 mA current rating, and 1.7 Ohm maximum DCR. The primary difference is that NLV25T-2R7J-EFD carries AEC-Q200 automotive qualification, while NLV25T-2R7J-EF does not. Select the EFD variant for automotive and high-reliability applications requiring AEC-Q200 documentation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed (744758327A, AISC-1008F-2R7J-T, NLV25T-2R7J-EF, and NLV25T-2R7J-EFD) are ROHS3 compliant. All parts also carry MSL 1 (Unlimited) moisture sensitivity level, matching the environmental compliance profile of the original 1008HC-272EJFS.

Q: How does the self-resonant frequency affect substitution?

A: The original 1008HC-272EJFS has a self-resonant frequency of 70 MHz. The 744758327A and AISC-1008F-2R7J-T offer higher self-resonant frequencies (135 MHz and 120 MHz respectively), which may improve high-frequency performance. The TDK NLV25T variants maintain 70 MHz self-resonant frequency, matching the original specification. For applications operating near or above 70 MHz, the higher self-resonant frequency substitutes may provide improved performance characteristics.

Q: Can I use the AISC-1008F-2R7J-T in place of the 1008HC-272EJFS?

A: The AISC-1008F-2R7J-T is a suitable direct substitute. It provides 490 mA current rating (meeting the 500 mA requirement with minimal margin), maintains 2.7 µH inductance with ±5% tolerance, and uses the same 1008 (2520 Metric) package. The increased DC resistance (1.3 Ohm maximum) and higher self-resonant frequency (120 MHz) should be verified against circuit requirements. The part is active and readily available.

Q: What packaging options are available for these substitutes?

A: All substitute parts are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. The 1008HC-272EJFS original part does not specify packaging format in the provided data. Verify packaging compatibility with your assembly equipment and procurement requirements before finalizing part selection.