Equivalent & Substitute Parts for ELL-5PR1R2N

Part Overview

The ELL-5PR1R2N is a 1.2 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 3 A continuous current with 21mOhm DC resistance. This component is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. The part operates at 100 kHz inductance test frequency and is housed in a nonstandard 5.00mm x 5.00mm surface mount package with 2.00mm maximum seated height.

Substiute Parts

ELL-5PR1R2N

Panasonic Electronic ComponentsIn Stock: 787ELL-5PR1R2N Datasheet

Current PartRFQ

NRS5014T1R2NMGG

Taiyo YudenIn Stock: 2322NRS5014T1R2NMGG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELL-5PR1R2N is determined by the following critical parameters:

• Inductance Value: Must be 1.2 µH with ±30% tolerance
• Shielding: Must be shielded construction
• Mounting Type: Must be surface mount
• Package Footprint: Must accommodate 5.00mm x 5.00mm dimensions
• Current Handling: Substitute must support minimum 3 A continuous current rating
• DC Resistance: Lower DCR values are acceptable; higher values indicate increased power dissipation
• Saturation Current: Must meet or exceed 4.2 A minimum saturation threshold

The NRS5014T1R2NMGG from Taiyo Yuden meets the core inductance, tolerance, shielding, and mounting requirements. However, the substitute exhibits reduced current rating (2.4 A versus 3 A) and increased DC resistance (54 mOhm maximum versus 21 mOhm), which affects thermal performance and power handling capacity in the application circuit.

Parameter Comparison

Engineering Selection Recommendations

The NRS5014T1R2NMGG presents a partial substitution path for the obsolete ELL-5PR1R2N based on matching inductance value, tolerance, shielding, and surface mount package footprint. However, the following constraints apply:

Current Rating Limitation: The substitute part is rated for 2.4 A continuous current versus the original 3 A specification. Applications requiring the full 3 A rating cannot use this substitute without circuit redesign or thermal management modifications.

DC Resistance Trade-off: The substitute exhibits 54 mOhm maximum DC resistance compared to 21 mOhm in the original part. This 2.57x increase in resistance results in proportionally higher I²R power dissipation at equivalent current levels, requiring thermal analysis for the target application.

Compliance Status: The NRS5014T1R2NMGG carries ROHS3 compliance certification and specified operating temperature range (-25°C ~ 125°C), whereas the original part specifications do not include these certifications. Both parts maintain REACH Unaffected status and MSL Level 1 (Unlimited) moisture sensitivity rating.

Product Status Consideration: Both parts carry restricted product status (Obsolete and Not For New Designs respectively), indicating limited long-term availability. Inventory availability differs significantly: 764 pcs for the original versus 2280 pcs for the substitute.

Frequently Asked Questions (FAQ)

Q: Can the NRS5014T1R2NMGG directly replace the ELL-5PR1R2N in all applications?

A: No. While both parts share identical 1.2 µH inductance and ±30% tolerance specifications, the substitute has reduced current rating (2.4 A vs. 3 A) and higher DC resistance (54 mOhm vs. 21 mOhm). Applications operating at or near 3 A continuous current require circuit evaluation before substitution.

Q: What is the impact of the higher DC resistance in the substitute part?

A: Higher DC resistance increases power dissipation according to P = I²R. At 3 A, the original part dissipates 0.189 W while the substitute would dissipate 0.486 W. This affects thermal design and may require additional heat management in compact layouts.

Q: Are the package dimensions compatible between these parts?

A: Both parts use 5.00mm x 5.00mm footprints suitable for identical PCB land patterns. The substitute is 0.60mm shorter (1.40mm vs. 2.00mm seated height), which may provide clearance advantages in space-constrained designs.

Q: What compliance differences exist between these parts?

A: The substitute (NRS5014T1R2NMGG) provides ROHS3 compliance certification and specified operating temperature range (-25°C ~ 125°C). The original part does not include these specifications in the provided data. Both maintain REACH Unaffected status.

Q: Which part should be selected for new designs?

A: Neither part is recommended for new designs. The original is obsolete and the substitute carries "Not For New Designs" status. Alternative current-generation inductors with 1.2 µH inductance and higher current ratings should be evaluated for new product development.

Q: How do the saturation current specifications compare?

A: The original part saturates at 4.2 A while the substitute saturates at 3.8 A. Both values exceed their respective continuous current ratings, but the reduced saturation margin in the substitute (1.58x vs. 1.4x) indicates tighter operating headroom.