ELJ-PC100MF3 Equivalent & Substitute Parts

Part Overview

The ELJ-PC100MF3 is a 10 µH unshielded drum core wirewound inductor manufactured by Panasonic Electronic Components. This surface mount component is rated for 400 mA continuous current with a DC resistance of 580 mOhm and operates across -20°C to 85°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

ELJ-PC100MF3

Panasonic Electronic ComponentsIn Stock: 909ELJ-PC100MF3 Datasheet

Current PartRFQ

744758410A

Würth ElektronikIn Stock: 1900744758410A Datasheet

SimilarRFQ

NLV25T-100J-PF

TDK CorporationIn Stock: 43124NLV25T-100J-PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELJ-PC100MF3 must satisfy the following core electrical and mechanical criteria:

• Inductance value of 10 µH
• Package / Case designation of 1008 (2520 Metric)
• Surface mount configuration
• Unshielded drum core wirewound construction with ferrite core material
• Operating temperature range that encompasses or exceeds -20°C ~ 85°C

The identified substitute parts meet these mandatory requirements. Variations in current rating, DC resistance, and tolerance are documented to enable informed selection based on specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

744758410A (Würth Elektronik) is the preferred substitute for applications where the original ELJ-PC100MF3 is no longer available. This part maintains active product status, provides ROHS3 compliance, and delivers improved tolerance (±5% versus ±20%). The 300 mA current rating accommodates most applications designed for the 400 mA original specification. The extended operating temperature range (-40°C ~ 85°C) provides additional thermal margin.

NLV25T-100J-PF (TDK) is suitable only for applications with current requirements not exceeding 155 mA. This part carries "Not For New Designs" status and is therefore not recommended for new product development. The significantly lower current rating and higher DC resistance make this option applicable only to legacy designs or low-current applications.

Frequently Asked Questions (FAQ)

Q: Can 744758410A directly replace ELJ-PC100MF3 in all applications?

A: Direct replacement is possible for applications where the circuit current demand does not exceed 300 mA. The 744758410A provides superior tolerance (±5%) and active product status. Verify that your circuit current requirement does not exceed the 300 mA rating of the substitute.

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

A: The 744758410A exhibits 2.8 Ohm maximum DCR compared to 580 mOhm in the original part. This increases power dissipation and voltage drop across the inductor. Calculate power loss using P = I²R to determine if thermal performance remains acceptable for your application.

Q: Is NLV25T-100J-PF suitable for new designs?

A: No. NLV25T-100J-PF carries "Not For New Designs" status and should not be selected for new product development. Use 744758410A for new applications requiring a 10 µH inductor in 1008 package.

Q: Are all substitute parts available in the same package?

A: Yes. All listed substitutes use the 1008 (2520 Metric) surface mount package, ensuring mechanical and footprint compatibility with the original ELJ-PC100MF3.

Q: What compliance certifications apply to substitute parts?

A: 744758410A is ROHS3 compliant. NLV25T-100J-PF is ROHS3 compliant and REACH affected. Verify compliance requirements for your specific application and region.