ELJ-FAR22MF2 Equivalent & Substitute Parts

Part Overview

The Panasonic ELJ-FAR22MF2 is a 220 nH unshielded wirewound inductor rated for 360 mA with a maximum DC resistance of 290 mOhm in a 1210 (3225 Metric) surface mount package. This part is classified as obsolete, making equivalent and substitute components necessary for ongoing production and design continuity. Substitute parts must maintain the same inductance value, package footprint, and electrical performance within specified tolerances to ensure circuit functionality and PCB compatibility.

Key Parameters

Parameter	Value
Inductance	220 nH
Inductance Tolerance	±20%
Current Rating	360 mA
DC Resistance (DCR)	290 mOhm Max
Package / Case	1210 (3225 Metric)
Mounting Type	Surface Mount
Shielding	Unshielded
Operating Temperature Range	-20°C ~ 85°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria applied strictly to the provided parameters:

Primary Substitution Criteria:

Inductance value: 220 nH (exact match required)
Package / Case: 1210 (3225 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
Shielding: Unshielded (exact match required)

Secondary Compatibility Parameters:

Current Rating: Must meet or exceed 360 mA
DC Resistance (DCR): Must not exceed 290 mOhm Max
Inductance Tolerance: ±20% or tighter acceptable
Operating Temperature: Must encompass or exceed -20°C ~ 85°C range
Moisture Sensitivity Level: MSL 1 required

Parts are grouped into two categories: Direct Substitutes (meet all primary and secondary criteria) and Similar Parts (meet primary criteria but differ in shielding or other secondary parameters).

Parameter Comparison

Part Number	Manufacturer	Inductance	Tolerance	Current Rating (mA)	DCR (mOhm Max)	Package	Shielding	Operating Temp	Product Status
ELJ-FAR22MF2	Panasonic	220 nH	±20%	360	290	1210	Unshielded	-20°C ~ 85°C	Obsolete
1210R-221K	API Delevan Inc.	220 nH	±10%	805	320	1210	Unshielded	-55°C ~ 125°C	Active
CM322522-R22KL	Bourns Inc.	220 nH	±10%	360	290	Nonstandard	Unshielded	-40°C ~ 125°C	Active
CM322522-R22ML	Bourns Inc.	220 nH	±20%	360	290	Nonstandard	Unshielded	-40°C ~ 125°C	Active
IMC1210BNR22M	Vishay Dale	220 nH	±20%	484	320	1210	Unshielded	-55°C ~ 125°C	Active
IMC1210EBR22M	Vishay Dale	220 nH	±20%	484	320	1210	Unshielded	-55°C ~ 125°C	Active
IMC1210ERR22M	Vishay Dale	220 nH	±20%	484	320	1210	Unshielded	-55°C ~ 125°C	Active
IMC1210SYR22M	Vishay Dale	220 nH	±20%	484	320	1210	Unshielded	-55°C ~ 125°C	Active
NLCV32T-R22M-EFR	TDK Corporation	220 nH	±20%	2400	32.4	1210	Unshielded	-40°C ~ 105°C	Active
NLCV32T-R22M-PFR	TDK Corporation	220 nH	±20%	2400	32.4	1210	Unshielded	-40°C ~ 125°C	Not For New Designs
ISC1210EBR22M	Vishay Dale	220 nH	±20%	565	300	1210	Shielded	-55°C ~ 125°C	Active

Engineering Selection Recommendations

Direct Substitutes (1210 Package, Unshielded):

The following parts meet all primary substitution criteria and maintain the 1210 (3225 Metric) package footprint with unshielded construction:

1210R-221K (API Delevan Inc.): Active status. Exceeds current rating (805 mA vs. 360 mA). DCR slightly higher at 320 mOhm. Tighter tolerance (±10%). Extended operating temperature range (-55°C ~ 125°C). Suitable for direct replacement in applications not requiring the original temperature floor of -20°C.
IMC1210BNR22M, IMC1210EBR22M, IMC1210ERR22M, IMC1210SYR22M (Vishay Dale): All active status. Identical inductance and tolerance (220 nH, ±20%). Current rating 484 mA exceeds requirement. DCR 320 mOhm slightly higher. Extended operating temperature (-55°C ~ 125°C). IMC1210EBR22M and IMC1210ERR22M carry ROHS3 compliance. IMC1210BNR22M and IMC1210SYR22M are RoHS non-compliant. Packaging varies: IMC1210BNR22M supplied in Bulk; IMC1210EBR22M in Bulk; IMC1210ERR22M and IMC1210SYR22M in Tape & Reel.
NLCV32T-R22M-EFR (TDK Corporation): Active status. ROHS3 compliant. Significantly higher current rating (2400 mA). Lower DCR (32.4 mOhm). Operating temperature -40°C ~ 105°C. Exceeds all electrical requirements. Preferred for new designs requiring enhanced performance margin.

Not Recommended for New Designs:

NLCV32T-R22M-PFR (TDK Corporation): Marked "Not For New Designs." Although electrically equivalent to NLCV32T-R22M-EFR, product status restricts use in new applications.

Package Deviation:

CM322522-R22KL, CM322522-R22ML (Bourns Inc.): Both listed as Nonstandard package despite matching 1210 footprint dimensions (3.20mm x 2.50mm). Active status. Electrical parameters match original (360 mA, 290 mOhm DCR). Use only if nonstandard package designation does not conflict with design requirements or assembly constraints.

Similar Part (Shielded Construction):

ISC1210EBR22M (Vishay Dale): Shielded variant. Meets all criteria except shielding type. Use only if shielded construction is required for EMI mitigation. Current rating 565 mA and DCR 300 mOhm acceptable. Active status, ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher current rating than the original 360 mA specification?

A: Yes. Higher current ratings provide additional design margin and do not compromise circuit function. Parts rated 484 mA, 805 mA, or 2400 mA are electrically compatible and will perform within the 220 nH inductance specification.

Q: What is the significance of DCR (DC Resistance) differences between parts?

A: DCR affects power dissipation and voltage drop across the inductor. The original part specifies 290 mOhm Max. Substitutes with 320 mOhm or 32.4 mOhm are acceptable. Higher DCR (320 mOhm) increases dissipation slightly; lower DCR (32.4 mOhm) reduces dissipation. Verify thermal and voltage drop performance in your specific circuit.

Q: Why do some substitutes have different operating temperature ranges?

A: Operating temperature range is determined by core material and construction. The original part operates -20°C ~ 85°C. Substitutes with extended ranges (-55°C ~ 125°C) provide broader environmental compatibility but are not required if your application operates within the original range.

Q: What is the difference between Tape & Reel and Bulk packaging?

A: Tape & Reel packaging is suitable for automated assembly lines. Bulk packaging is used for manual assembly or lower-volume applications. Both formats contain identical components; packaging choice depends on manufacturing process requirements.

Q: Can I use the shielded variant ISC1210EBR22M as a substitute?

A: ISC1210EBR22M is electrically compatible but features shielded construction versus the original unshielded design. Use only if EMI shielding is required. Shielding may affect circuit layout and performance in sensitive applications.

Q: Are there RoHS compliance considerations for substitute selection?

A: Yes. IMC1210EBR22M and IMC1210ERR22M are ROHS3 compliant. IMC1210BNR22M and IMC1210SYR22M are RoHS non-compliant. NLCV32T-R22M-EFR and all Bourns parts are ROHS3 compliant. Select based on your product's regulatory requirements.

Q: What does "Not For New Designs" mean for NLCV32T-R22M-PFR?

A: This designation indicates the manufacturer recommends against using this part in new product development. Use NLCV32T-R22M-EFR instead, which is the active equivalent with identical electrical specifications.

Q: Why is the Bourns CM322522 series listed as Nonstandard package?

A: Despite matching the 1210 footprint dimensions (3.20mm x 2.50mm), Bourns designates this package as nonstandard. Verify compatibility with your PCB design and assembly equipment before selection.

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