ELJ-PF2N2DFB Equivalent & Substitute Parts

Part Overview

The ELJ-PF2N2DFB is a 2.2 nH unshielded drum core wirewound inductor manufactured by Panasonic Electronic Components in the 0402 (1005 Metric) surface mount package. This component is designed for high-frequency applications requiring low inductance values with controlled DC resistance characteristics. The part is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

ELJ-PF2N2DFB

Panasonic Electronic ComponentsIn Stock: 740ELJ-PF2N2DFB Datasheet

Current PartRFQ

AISC-0402HP-2N2B-T

Abracon LLCIn Stock: 8437AISC-0402HP-2N2B-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELJ-PF2N2DFB is determined by the following critical parameters:

• Inductance Value: Substitute parts must maintain 2.2 nH nominal inductance
• Package / Case: 0402 (1005 Metric) surface mount package is required for PCB compatibility
• Core Type: Ceramic, unshielded drum core construction
• Mounting Type: Surface mount technology
• DC Resistance: Substitute parts must not exceed the maximum DCR specification to maintain circuit performance
• Current Rating: Substitute parts must support the required current without saturation
• Operating Temperature: Substitute parts must cover the required temperature range

The AISC-0402HP-2N2B-T from Abracon LLC meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The AISC-0402HP-2N2B-T is a direct functional substitute for the obsolete ELJ-PF2N2DFB. The substitute part provides equivalent inductance and package compatibility while offering improved electrical performance characteristics. The Abracon component features tighter inductance tolerance (±0.2 nH vs ±0.3 nH), lower maximum DC resistance (38 mOhm vs 40 mOhm), and higher current rating (2.1 A vs 1.9 A). The substitute part maintains the same 0402 surface mount package and ceramic unshielded core construction, ensuring direct PCB layout compatibility.

The AISC-0402HP-2N2B-T is currently in active production status with ROHS3 compliance and improved moisture sensitivity rating (MSL 1 vs MSL 2), providing superior long-term reliability and regulatory compliance for new designs and production continuity.

Frequently Asked Questions (FAQ)

Q: Can the AISC-0402HP-2N2B-T be used as a direct replacement for the ELJ-PF2N2DFB?

A: Yes. Both components share identical 2.2 nH inductance values, 0402 (1005 Metric) surface mount packages, and ceramic unshielded core construction. The substitute part is electrically and mechanically compatible with the original design.

Q: What are the key differences between these two inductors?

A: The AISC-0402HP-2N2B-T offers tighter inductance tolerance (±0.2 nH), lower DC resistance (38 mOhm max), higher current rating (2.1 A), and extended operating temperature range (-40°C to 125°C vs -40°C to 85°C). The substitute part is also in active production with ROHS3 compliance.

Q: Are there any PCB layout considerations when switching to the AISC-0402HP-2N2B-T?

A: No layout changes are required. Both components use identical 0402 (1005 Metric) surface mount packages with the same footprint dimensions and mounting requirements.

Q: What is the moisture sensitivity difference between these parts?

A: The ELJ-PF2N2DFB has MSL 2 (1 Year shelf life), while the AISC-0402HP-2N2B-T has MSL 1 (Unlimited shelf life). The substitute part offers superior moisture resistance and longer storage capability.

Q: Does the substitute part meet current regulatory requirements?

A: Yes. The AISC-0402HP-2N2B-T is ROHS3 compliant and carries REACH Unaffected status, meeting current environmental and regulatory standards for electronic components.