ELJ-FC1R8JF Equivalent & Substitute Parts

Part Overview

The ELJ-FC1R8JF is a 1.8 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 160 mA with a maximum DC resistance of 950mOhm. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part is packaged in the 1008 (2520 Metric) surface mount form factor and operates across the temperature range of -20°C to 85°C.

Key Parameters

Parameter	Value
Inductance	1.8 µH
Tolerance	±5%
Current Rating	160 mA
DC Resistance (DCR)	950mOhm Max
Shielding	Unshielded
Package / Case	1008 (2520 Metric)
Mounting Type	Surface Mount
Operating Temperature	-20°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the ELJ-FC1R8JF is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Inductance value: 1.8 µH (±5% tolerance)
Package / Case: 1008 (2520 Metric) surface mount form factor
Shielding type: Unshielded
Mounting type: Surface mount

Allowable Variations:

Current rating may exceed the original 160 mA specification
DC resistance may differ from the original 950mOhm maximum, provided the substitute part meets its own rated specifications
Operating temperature range may be broader than the original -20°C to 85°C
Core material and construction type (wirewound vs. drum core) may vary
Product status may differ (active vs. obsolete)

Substitute parts are grouped into two categories: direct manufacturer equivalents (matching all critical parameters) and similar parts (matching inductance and package but with different electrical characteristics).

Parameter Comparison

Parameter	ELJ-FC1R8JF (Main)	IMC1008ER1R8J	NLV25T-1R8J-EF	NLV25T-1R8J-EFD	NLV25T-1R8J-PF	1008-182J
Manufacturer	Panasonic	Vishay Dale	TDK Corporation	TDK Corporation	TDK Corporation	API Delevan Inc.
Inductance	1.8 µH	1.8 µH	1.8 µH	1.8 µH	1.8 µH	1.8 µH
Tolerance	±5%	±5%	±5%	±5%	±5%	±5%
Current Rating (mA)	160	210	210	210	210	457
DC Resistance (Max)	950mOhm	2.2Ohm	1.45Ohm	1.45Ohm	1.45Ohm	720mOhm
Shielding	Unshielded	Unshielded	Unshielded	Unshielded	Unshielded	Unshielded
Package / Case	1008 (2520 Metric)	1008 (2520 Metric)	1008 (2520 Metric)	1008 (2520 Metric)	1008 (2520 Metric)	Nonstandard
Operating Temperature	-20°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 125°C
Product Status	Obsolete	Active	Active	Active	Not For New Designs	Active
RoHS Status	-	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

Direct Substitutes (Recommended for New Designs):

IMC1008ER1R8J (Vishay Dale) and NLV25T-1R8J-EF or NLV25T-1R8J-EFD (TDK Corporation) are the primary substitutes for the ELJ-FC1R8JF. All three parts maintain the 1.8 µH inductance value, ±5% tolerance, unshielded configuration, and 1008 (2520 Metric) package form factor. These parts feature active product status and ROHS3 compliance, making them suitable for new design implementations.

The NLV25T-1R8J-EFD variant includes AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

Transitional Substitute (Existing Designs Only):

NLV25T-1R8J-PF (TDK Corporation) maintains electrical and mechanical compatibility but carries a "Not For New Designs" status. This part is appropriate only for sustaining production of existing designs where component qualification has already been completed.

Similar Part (Limited Compatibility):

1008-182J (API Delevan Inc.) matches the 1.8 µH inductance and unshielded configuration but uses a nonstandard package form factor and exhibits RoHS non-compliance. This part is not recommended as a direct substitute due to package incompatibility and regulatory status.

Frequently Asked Questions (FAQ)

Q: Can IMC1008ER1R8J replace ELJ-FC1R8JF in existing designs?

A: Yes. Both parts share the same 1.8 µH inductance, ±5% tolerance, unshielded configuration, and 1008 (2520 Metric) package. The IMC1008ER1R8J provides higher current rating (210 mA vs. 160 mA) and broader operating temperature range (-40°C to 125°C vs. -20°C to 85°C), making it functionally compatible for the original application.

Q: What is the difference between NLV25T-1R8J-EF and NLV25T-1R8J-EFD?

A: Both parts are electrically and mechanically identical with 1.8 µH inductance, 210 mA current rating, and 1.45Ohm maximum DC resistance. The primary difference is that NLV25T-1R8J-EFD includes AEC-Q200 automotive qualification, while NLV25T-1R8J-EF does not. Select the EFD variant for automotive applications requiring this certification.

Q: Why is 1008-182J not recommended as a substitute?

A: The 1008-182J uses a nonstandard package form factor and is RoHS non-compliant. While it maintains the 1.8 µH inductance value, the package incompatibility prevents direct board-level substitution without design modification.

Q: Can NLV25T-1R8J-PF be used in new product designs?

A: No. This part carries a "Not For New Designs" status and should be used only for sustaining production of existing qualified designs. For new designs, select IMC1008ER1R8J or NLV25T-1R8J-EF/EFD.

Q: What packaging options are available for the substitute parts?

A: IMC1008ER1R8J is supplied in Tape & Reel (TR) packaging. NLV25T-1R8J-EF and NLV25T-1R8J-EFD are supplied in Tape & Reel (TR) packaging. NLV25T-1R8J-PF is supplied in Cut Tape (CT) & Digi-Reel® packaging. Confirm packaging requirements with your procurement specifications before ordering.

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