ELL-4FG220MA Equivalent & Substitute Parts

Part Overview

The ELL-4FG220MA is a 22 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 500 mA with a DC resistance of 620mOhm. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part is surface-mounted in a nonstandard 3.80mm x 3.80mm package with a maximum seated height of 1.20mm and is ROHS3 compliant with unlimited moisture sensitivity rating.

Key Parameters

Parameter	ELL-4FG220MA
Inductance	22 µH
Tolerance	±20%
Current Rating	500 mA
Current - Saturation (Isat)	420 mA
DC Resistance (DCR)	620 mOhm
Shielding	Shielded
Type	Wirewound
Mounting Type	Surface Mount
Size / Dimension	0.150" L x 0.150" W (3.80mm x 3.80mm)
Height - Seated (Max)	0.047" (1.20mm)
Inductance Frequency - Test	100 kHz
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ELL-4FG220MA are qualified based on the following critical parameters:

Inductance Value: 22 µH (exact match required)
Tolerance: ±20% (matching tolerance specification)
Current Rating: Minimum 490 mA (acceptable range for 500 mA rated part)
DC Resistance (DCR): 610–730 mOhm (within acceptable operating range)
Shielding: Shielded configuration (electromagnetic containment requirement)
Mounting Type: Surface Mount (PCB assembly compatibility)
Package Dimensions: 3.80mm x 3.80mm footprint (physical fit requirement)
RoHS Compliance: ROHS3 Compliant (regulatory requirement)
Moisture Sensitivity: MSL 1 (Unlimited) (storage and handling compatibility)

Three substitute parts meet these criteria with variations in saturation current, DCR specification, and seated height.

Parameter Comparison

Parameter	ELL-4FG220MA (Panasonic)	CDH38D11SLDNP-220MC (Sumida)	CDRH3D16/HPNP-220MC (Sumida)	NR4018T220M (Taiyo Yuden)
Inductance	22 µH	22 µH	22 µH	22 µH
Tolerance	±20%	±20%	±20%	±20%
Current Rating (Amps)	500 mA	490 mA	520 mA	590 mA
Current - Saturation (Isat)	420 mA	440 mA	550 mA	800 mA
DC Resistance (DCR)	620 mOhm	730 mOhm Max	610 mOhm Max	432 mOhm Max
Shielding	Shielded	Unshielded	Shielded	Shielded
Type	Wirewound	—	—	Drum Core, Wirewound
Material - Core	—	Ferrite	Ferrite	Ferrite
Size / Dimension	0.150" L x 0.150" W (3.80mm x 3.80mm)	0.150" L x 0.150" W (3.80mm x 3.80mm)	0.150" L x 0.150" W (3.80mm x 3.80mm)	0.157" L x 0.157" W (4.00mm x 4.00mm)
Height - Seated (Max)	0.047" (1.20mm)	0.047" (1.20mm)	0.071" (1.80mm)	0.071" (1.80mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Inductance Frequency - Test	100 kHz	100 kHz	100 kHz	100 kHz
Product Status	Obsolete	Active	Active	Not For New Designs
Operating Temperature	—	-40°C ~ 105°C	-40°C ~ 105°C	-25°C ~ 120°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

CDRH3D16/HPNP-220MC (Sumida America Components Inc.) is the primary substitute for the ELL-4FG220MA. This part maintains shielded configuration, matches the 3.80mm x 3.80mm footprint, and exceeds the current rating specification at 520 mA with improved saturation current of 550 mA. The DCR of 610 mOhm Max is within acceptable tolerance of the original 620 mOhm specification. The part is active status with ROHS3 compliance and unlimited MSL rating. The seated height increases to 1.80mm, requiring PCB layout verification for clearance.

NR4018T220M (Taiyo Yuden) serves as a secondary substitute with superior electrical performance: 590 mA current rating, 800 mA saturation current, and 432 mOhm Max DCR. This part offers the lowest DC resistance among substitutes, reducing power dissipation. However, the package dimensions increase to 4.00mm x 4.00mm, and the product status is classified as Not For New Designs. This part is suitable for legacy system maintenance where footprint constraints are not critical.

CDH38D11SLDNP-220MC (Sumida America Components Inc.) is not recommended as a primary substitute due to unshielded configuration, which differs from the shielded requirement of the original part. The current rating of 490 mA is marginally below the 500 mA specification. This part is suitable only in applications where electromagnetic shielding is not a functional requirement.

Frequently Asked Questions (FAQ)

Q: Can CDH38D11SLDNP-220MC be used as a direct replacement for ELL-4FG220MA?

A: No. The CDH38D11SLDNP-220MC is unshielded, while the ELL-4FG220MA is shielded. Shielding is a critical parameter for electromagnetic containment. Use this part only if circuit design does not require shielded inductors.

Q: What is the impact of increased seated height in CDRH3D16/HPNP-220MC and NR4018T220M?

A: The original ELL-4FG220MA has a maximum seated height of 1.20mm. Both substitute parts increase to 1.80mm. Verify PCB layout clearance above the inductor to prevent component interference or assembly issues.

Q: Is NR4018T220M suitable for new product designs?

A: No. NR4018T220M is classified as Not For New Designs. This part is appropriate for maintenance and repair of existing systems using the original ELL-4FG220MA. For new designs, use CDRH3D16/HPNP-220MC.

Q: How do DC resistance differences affect circuit performance?

A: The ELL-4FG220MA specifies 620 mOhm DCR. CDRH3D16/HPNP-220MC matches at 610 mOhm Max, while NR4018T220M offers lower resistance at 432 mOhm Max. Lower DCR reduces power dissipation and heat generation. Verify that circuit design tolerates the DCR variation, particularly in current-limiting or filtering applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All three substitute parts—CDH38D11SLDNP-220MC, CDRH3D16/HPNP-220MC, and NR4018T220M—are ROHS3 compliant with MSL 1 (Unlimited) rating, matching the original part's regulatory and environmental specifications.

Q: What is the difference between wirewound and drum core inductors?

A: The ELL-4FG220MA is wirewound. NR4018T220M is drum core wirewound. Both are wirewound construction types. Drum core design typically offers improved thermal performance and saturation characteristics. The functional inductance value and tolerance remain equivalent at 22 µH ±20%.

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