ELL-5PR3R3N Equivalent & Substitute Parts

Part Overview

The ELL-5PR3R3N is a 3.3 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 2.3 A continuous current with 37mOhm DC resistance. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity. Substitute parts must maintain the same inductance value, shielding characteristics, and current handling capability within specified tolerance ranges.

Key Parameters

Parameter	Value
Inductance	3.3 µH
Inductance Tolerance	±30%
Current Rating	2.3 A
DC Resistance (DCR)	37mOhm
Saturation Current (Isat)	2.6 A
Shielding	Shielded
Type	Wirewound
Mounting Type	Surface Mount
Package	Nonstandard
Size	5.00mm x 5.00mm x 2.00mm (Max)
Test Frequency	100 kHz
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ELL-5PR3R3N are qualified based on the following critical parameters:

Inductance Value: Must be 3.3 µH with ±30% tolerance
Current Rating: Minimum 2.3 A continuous current capability
DC Resistance: Must not exceed specifications that would cause excessive power dissipation in the application
Shielding: Must maintain shielded construction to prevent electromagnetic interference
Mounting Type: Surface mount configuration required
Package Footprint: Physical dimensions must be compatible with 5.00mm x 5.00mm base footprint
Test Frequency: Inductance measured at 100 kHz

Two substitute parts meet these criteria: CDRH50D18RHF-3R3NC (Sumida) and NRS5020T3R3NMGJ (Taiyo Yuden). Both maintain the required inductance, shielding, and current ratings while offering active product status or extended availability.

Parameter Comparison

Parameter	ELL-5PR3R3N (Panasonic)	CDRH50D18RHF-3R3NC (Sumida)	NRS5020T3R3NMGJ (Taiyo Yuden)
Inductance	3.3 µH	3.3 µH	3.3 µH
Inductance Tolerance	±30%	±30%	±30%
Current Rating (Amps)	2.3 A	2.5 A	2.4 A
Saturation Current (Isat)	2.6 A	2.1 A	2.4 A
DC Resistance (DCR)	37mOhm	39mOhm	57.6mOhm Max
Type	Wirewound	Drum Core, Wirewound	Drum Core, Wirewound
Shielding	Shielded	Shielded	Shielded
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Size (L x W)	5.00mm x 5.00mm	5.20mm x 5.20mm	4.90mm x 4.90mm
Height (Max)	2.00mm	2.20mm	2.00mm
Test Frequency	100 kHz	100 kHz	100 kHz
Product Status	Obsolete	Active	Not For New Designs
Operating Temperature	Not specified	-40°C ~ 105°C	-25°C ~ 125°C
Moisture Sensitivity Level	MSL 1 (Unlimited)	MSL 1 (Unlimited)	MSL 1 (Unlimited)

Engineering Selection Recommendations

CDRH50D18RHF-3R3NC (Sumida America Components Inc.) is the primary substitute for new production applications. This part maintains active product status, ensuring long-term availability and supply chain stability. The current rating of 2.5 A exceeds the original 2.3 A requirement, and DC resistance of 39mOhm is within acceptable limits. Physical dimensions (5.20mm x 5.20mm x 2.20mm) are marginally larger but compatible with standard 5.00mm footprint designs. Operating temperature range of -40°C to 105°C provides adequate thermal coverage for most industrial applications.

NRS5020T3R3NMGJ (Taiyo Yuden) serves as a secondary substitute for existing inventory management or legacy system support. Although classified as "Not For New Designs," this part remains in stock with 1809 units available. The 2.4 A current rating and 57.6mOhm maximum DC resistance are acceptable for the specified application. Physical dimensions (4.90mm x 4.90mm x 2.00mm) match the original footprint more closely. The extended operating temperature range of -25°C to 125°C and RoHS3 compliance provide additional environmental flexibility.

Frequently Asked Questions (FAQ)

Q: Can CDRH50D18RHF-3R3NC be used as a direct replacement for ELL-5PR3R3N?

A: Yes. Both parts maintain 3.3 µH inductance at ±30% tolerance, shielded construction, and surface mount configuration. The 2.5 A current rating of the Sumida part exceeds the original 2.3 A specification. Physical dimensions differ slightly (5.20mm vs 5.00mm), but this is within acceptable tolerance for standard PCB layouts. Verify PCB clearance before implementation.

Q: What is the impact of higher DC resistance in the NRS5020T3R3NMGJ?

A: The NRS5020T3R3NMGJ exhibits 57.6mOhm maximum DC resistance compared to 37mOhm in the original part. This 55% increase results in proportionally higher resistive losses at rated current. Power dissipation at 2.3 A would be approximately 0.19 W versus 0.12 W in the original design. Thermal management and circuit performance must be evaluated for applications sensitive to inductor losses.

Q: Are there packaging differences between these substitutes?

A: The CDRH50D18RHF-3R3NC is supplied in Tape & Reel (TR) packaging, while the original ELL-5PR3R3N packaging format is not specified. The NRS5020T3R3NMGJ is also supplied in Tape & Reel format. Confirm packaging compatibility with your assembly process and material handling requirements.

Q: What is the significance of product status classifications?

A: The original ELL-5PR3R3N is obsolete, indicating discontinued manufacturing and limited future availability. CDRH50D18RHF-3R3NC carries active status, ensuring continued production and supply chain support. NRS5020T3R3NMGJ is classified as "Not For New Designs," indicating the manufacturer recommends against use in new product development, though existing inventory remains available for legacy system support.

Q: Do these substitutes meet the same compliance standards?

A: All three parts carry MSL 1 (Unlimited) moisture sensitivity classification and REACH Unaffected status. The NRS5020T3R3NMGJ additionally carries RoHS3 compliance certification. Verify compliance requirements specific to your application and regional regulations before final selection.

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