ELJ-PC2R2MF3 Equivalent & Substitute Parts

Part Overview

The Panasonic ELJ-PC2R2MF3 is a 2.2 µH unshielded drum core wirewound inductor rated for 700 mA with 190mOhm DC resistance in a 1008 (2520 Metric) surface mount package. This part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production support.

Substiute Parts

ELJ-PC2R2MF3

Panasonic Electronic ComponentsIn Stock: 1049ELJ-PC2R2MF3 Datasheet

Current PartRFQ

CW252016-2R2G

Bourns Inc.In Stock: 1170CW252016-2R2G Datasheet

SimilarRFQ

CW252016-2R2J

Bourns Inc.In Stock: 1145CW252016-2R2J Datasheet

SimilarRFQ

NLV25T-2R2J-PF

TDK CorporationIn Stock: 31277NLV25T-2R2J-PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Inductance value: 2.2 µH (exact match required)
• Package / Case: 1008 (2520 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Core Type: Ferrite, Unshielded, Drum Core (exact match required)

The substitute parts listed below meet these core requirements. However, variations exist in current rating, DC resistance, tolerance, and operating temperature range. These differences must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

CW252016-2R2J (Bourns Inc.) is the primary active equivalent for the ELJ-PC2R2MF3. This part maintains identical inductance and package specifications while offering ROHS3 compliance and active product status. The current rating of 250 mA is lower than the original 700 mA specification; applications requiring the full 700 mA rating cannot use this substitute without circuit redesign.

CW252016-2R2G (Bourns Inc.) provides the same electrical and mechanical characteristics as CW252016-2R2J with tighter inductance tolerance (±2% versus ±5%). Selection between these two Bourns variants depends on tolerance requirements and packaging preference (bulk versus tape & reel).

NLV25T-2R2J-PF (TDK Corporation) is classified as "Not For New Designs" and carries REACH Affected status. This part is suitable only for legacy system maintenance where existing designs are already qualified to this component.

Frequently Asked Questions (FAQ)

Q: Can CW252016-2R2J directly replace ELJ-PC2R2MF3 in all applications?

A: Direct replacement is limited to applications where the circuit operates at or below 250 mA. The original part supports 700 mA; circuits designed for this current level require redesign or alternative component selection.

Q: What is the significance of the DCR difference between the original and substitute parts?

A: The ELJ-PC2R2MF3 has 190mOhm DCR, while Bourns substitutes have 2.8Ohm Max DCR. This 14.7x increase in resistance affects power dissipation and circuit performance. Applications sensitive to DCR must account for this difference in thermal and efficiency calculations.

Q: Are the Bourns CW252016-2R2G and CW252016-2R2J interchangeable?

A: Both parts share identical electrical and mechanical specifications. The primary difference is inductance tolerance (±2% versus ±5%) and packaging format. Selection depends on tolerance requirements and supply chain availability.

Q: Why is NLV25T-2R2J-PF marked "Not For New Designs"?

A: This designation indicates the manufacturer recommends against using this part in new product development. It remains available for legacy system support and maintenance applications only.

Q: Does the extended operating temperature range of substitute parts affect compatibility?

A: The original ELJ-PC2R2MF3 operates from -20°C to 85°C. Bourns substitutes extend this to -40°C to 125°C, providing broader environmental capability. This does not create incompatibility; circuits designed for the narrower range operate within the substitute's specification.

Q: Are all substitute parts ROHS3 compliant?

A: CW252016-2R2G and CW252016-2R2J are ROHS3 compliant. NLV25T-2R2J-PF is ROHS3 compliant but carries REACH Affected status. Compliance requirements vary by application and market; verify against your specific regulatory obligations.