ELJ-PF2N7DFB Equivalent & Substitute Parts

Part Overview

The ELJ-PF2N7DFB is a 2.7 nH unshielded drum core wirewound inductor manufactured by Panasonic Electronic Components. This surface mount component is rated for 1.8 A maximum current with 50mOhm DC resistance in a 0402 (1005 Metric) package. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

ELJ-PF2N7DFB

Panasonic Electronic ComponentsIn Stock: 802ELJ-PF2N7DFB Datasheet

Current PartRFQ

AISC-0402HP-2N7B-T

Abracon LLCIn Stock: 8285AISC-0402HP-2N7B-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELJ-PF2N7DFB is determined by the following critical parameters:

• Inductance value: 2.7 nH (exact match required)
• Package / Case: 0402 (1005 Metric) (physical compatibility)
• Core type: Drum core, wirewound, ceramic (functional equivalence)
• Shielding: Unshielded (electromagnetic behavior)
• Mounting type: Surface mount (assembly compatibility)

The AISC-0402HP-2N7B-T from Abracon LLC meets all primary substitution criteria. While secondary parameters such as current rating, DC resistance, and operating temperature range differ, these variations remain within acceptable engineering tolerances for component substitution in this category.

Parameter Comparison

Engineering Selection Recommendations

The AISC-0402HP-2N7B-T is a suitable substitute for the obsolete ELJ-PF2N7DFB based on the following factors:

• Both components share identical inductance values (2.7 nH) and package specifications (0402 / 1005 Metric)
• The Abracon part maintains active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment
• The substitute exhibits tighter inductance tolerance (±0.2nH vs ±0.3nH), providing improved precision
• Operating temperature range extension (-40°C ~ 125°C vs -40°C ~ 85°C) offers broader application flexibility
• Current rating reduction (1.5 A vs 1.8 A) and DCR increase (56mOhm vs 50mOhm) require circuit-level evaluation to confirm compatibility with specific application requirements

Frequently Asked Questions (FAQ)

Q: Can the AISC-0402HP-2N7B-T directly replace the ELJ-PF2N7DFB in existing designs?

A: Direct replacement is possible for applications where the circuit current demand does not exceed 1.5 A and the slightly higher DC resistance (56mOhm vs 50mOhm) is acceptable. Circuit validation is required to confirm compatibility.

Q: What are the physical compatibility considerations?

A: Both components use the 0402 (1005 Metric) package with identical footprints. The Abracon part has marginally different dimensions (0.039" L x 0.022" W vs 0.039" L x 0.020" W) and height (0.024" vs 0.022" max seated height), which remain within standard PCB assembly tolerances.

Q: How do the inductance tolerances compare?

A: The Abracon substitute provides tighter tolerance (±0.2nH) compared to the Panasonic original (±0.3nH), resulting in improved inductance value consistency across production batches.

Q: Are there compliance or regulatory differences?

A: The Abracon AISC-0402HP-2N7B-T is ROHS3 compliant with active product status. The Panasonic ELJ-PF2N7DFB is obsolete. Both components are REACH unaffected and classified as EAR99.

Q: What is the impact of the different operating temperature ranges?

A: The Abracon part supports -40°C ~ 125°C versus the Panasonic -40°C ~ 85°C. Applications requiring operation above 85°C benefit from the extended upper temperature limit of the substitute.