ELJ-PC3R3MF3 Equivalent & Substitute Parts

Part Overview

The ELJ-PC3R3MF3 is a 3.3 µH unshielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 650 mA with 220mOhm DC resistance in a 1008 (2520 Metric) surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. Substitute parts must maintain the same inductance value, package footprint, and core material while meeting application current and resistance requirements.

Substiute Parts

ELJ-PC3R3MF3

Panasonic Electronic ComponentsIn Stock: 751ELJ-PC3R3MF3 Datasheet

Current PartRFQ

CW252016-3R3J

Bourns Inc.In Stock: 967CW252016-3R3J Datasheet

SimilarRFQ

NLCV25T-3R3M-PFR

TDK CorporationIn Stock: 6107NLCV25T-3R3M-PFR Datasheet

SimilarRFQ

NLV25T-3R3J-PF

TDK CorporationIn Stock: 7360NLV25T-3R3J-PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELJ-PC3R3MF3 are grouped based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Inductance value: 3.3 µH (exact match required)
• Package / Case: 1008 (2520 Metric) (identical footprint and height)
• Core material: Ferrite, unshielded drum core wirewound construction
• Mounting type: Surface Mount

Secondary Compatibility Factors:

• Current rating must meet or exceed application requirements
• DC resistance must be compatible with circuit design specifications
• Operating temperature range must cover application environment
• Moisture sensitivity level and compliance certifications

The three substitute parts listed below maintain the primary matching criteria. However, differences in current rating, DC resistance, and product status require careful selection based on specific application demands.

Parameter Comparison

Engineering Selection Recommendations

CW252016-3R3J (Bourns Inc.) - Active Status

This part is the preferred substitute for new designs. It maintains identical package dimensions (0.071" max height) and inductance specifications. The Active product status ensures long-term availability and supply chain stability. ROHS3 compliance supports regulatory requirements. The tighter inductance tolerance (±5%) provides improved circuit performance predictability. However, the current rating of 185 mA is significantly lower than the original 650 mA specification, and DC resistance of 3.4Ohm Max is substantially higher than the original 220mOhm. Selection of this part requires confirmation that application current demands do not exceed 185 mA and that the higher DC resistance is acceptable for the circuit design.

NLCV25T-3R3M-PFR (TDK Corporation) - Not For New Designs

This part offers the closest current rating match at 570 mA, approaching the original 650 mA specification. It maintains the same inductance tolerance (±20%) and package footprint. ROHS3 compliance and extended operating temperature range (-40°C ~ 125°C) provide design flexibility. The Not For New Designs status indicates limited future availability. DC resistance of 528mOhm Max is higher than the original 220mOhm but lower than the Bourns alternative. This part is suitable for legacy design support or applications where current rating is the primary selection criterion.

NLV25T-3R3J-PF (TDK Corporation) - Not For New Designs

This part features the lowest DC resistance at 1.9Ohm Max and tighter inductance tolerance (±5%), supporting applications sensitive to resistance losses. Current rating of 185 mA matches the Bourns part. The Not For New Designs status and REACH Affected classification indicate this part is transitioning out of production. Height dimension of 0.075" (1.90mm) exceeds the original 0.071" specification, requiring PCB layout verification. This part is suitable only for existing designs where component replacement is necessary.

Frequently Asked Questions (FAQ)

Q: Can CW252016-3R3J replace ELJ-PC3R3MF3 in all applications?

A: CW252016-3R3J maintains identical package footprint and inductance value. However, the current rating of 185 mA is significantly lower than the original 650 mA. Substitution is valid only if the application current requirement does not exceed 185 mA. The higher DC resistance (3.4Ohm Max vs. 220mOhm) must also be evaluated for circuit impact.

Q: What is the difference between the two TDK parts?

A: NLCV25T-3R3M-PFR provides higher current rating (570 mA) with higher DC resistance (528mOhm Max). NLV25T-3R3J-PF provides lower current rating (185 mA) with lower DC resistance (1.9Ohm Max). Both are classified as Not For New Designs. Selection depends on whether current capacity or resistance characteristics are more critical to the application.

Q: Are there height dimension differences I should consider?

A: CW252016-3R3J maintains the original height of 0.071" (1.80mm). Both TDK parts have a maximum height of 0.075" (1.90mm), which is 0.004" taller. PCB layout and component clearance must be verified before substitution.

Q: Which substitute part should I use for new designs?

A: CW252016-3R3J is the only part with Active product status, ensuring long-term availability and supply chain support. This part is the recommended choice for new designs, provided that the 185 mA current rating and 3.4Ohm DC resistance are compatible with application requirements.

Q: Do all substitute parts meet RoHS compliance?

A: CW252016-3R3J, NLCV25T-3R3M-PFR, and NLV25T-3R3J-PF are all ROHS3 Compliant. All parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements.

Q: What is the impact of inductance tolerance differences?

A: The original part and NLCV25T-3R3M-PFR have ±20% tolerance. CW252016-3R3J and NLV25T-3R3J-PF have tighter ±5% tolerance, providing better circuit performance predictability. Tighter tolerance may improve filter response, impedance matching, or resonant frequency stability in sensitive applications.