ELL-ATV220M Equivalent & Substitute Parts

Part Overview

The Panasonic ELL-ATV220M is a 22 µH shielded drum core wirewound inductor rated for 2.2 A with 45mOhm DC resistance, designed for surface mount applications. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. Substitute parts must maintain the core inductance value of 22 µH, support the required current rating, and meet the shielding and thermal requirements of the original design.

Key Parameters

Parameter	ELL-ATV220M
Inductance	22 µH
Inductance Tolerance	±20%
Current Rating	2.2 A
DC Resistance (DCR)	45mOhm
Shielding	Shielded
Core Type	Ferrite Drum Core, Wirewound
Mounting Type	Surface Mount
Package Dimensions	10.00mm L x 10.00mm W x 4.50mm H
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ELL-ATV220M are grouped based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

Inductance value: 22 µH (fixed requirement)
Inductance tolerance: ±20% or tighter
Current rating: minimum 2.2 A
Shielding configuration: shielded preferred for EMI performance
Core material: ferrite drum core wirewound
Mounting type: surface mount
Test frequency: 100 kHz

Secondary Compatibility Factors:

DC resistance: acceptable range up to approximately 60mOhm for thermal and efficiency considerations
Package dimensions: footprint compatibility within 10.00mm x 10.00mm nominal size
RoHS3 compliance and MSL rating 1 for manufacturing compatibility

Substitutes are presented in order of electrical and mechanical alignment with the original part specification.

Parameter Comparison

Part Number	Manufacturer	Inductance	Tolerance	Current Rating	DCR	Shielding	Dimensions (L x W x H)	Product Status	RoHS3
ELL-ATV220M	Panasonic Electronic Components	22 µH	±20%	2.2 A	45mOhm	Shielded	10.00 x 10.00 x 4.50mm	Obsolete	Yes
B82464G4223M000	EPCOS - TDK Electronics	22 µH	±20%	2.25 A	52mOhm Max	Shielded	10.40 x 10.40 x 4.80mm	Active	Yes
B82464P4223M000	EPCOS - TDK Electronics	22 µH	±20%	2.25 A	52mOhm Max	Shielded	10.40 x 10.40 x 4.80mm	Active	Yes
B82476B1223M100	EPCOS - TDK Electronics	22 µH	±20%	2.95 A	50mOhm Max	Unshielded	12.95 x 9.40 x 5.08mm	Active	Yes
SDR1045-220M	Bourns Inc.	22 µH	±20%	2.2 A	145mOhm Max	Unshielded	10.00 x 10.00 x 4.80mm	Active	Yes
SLF10165T-220M2R43PF	TDK Corporation	22 µH	±20%	2.4 A	53.8mOhm Max	Shielded	10.10 x 10.10 x 6.80mm	Not For New Designs	Yes
SRU1038-220Y	Bourns Inc.	22 µH	±30%	2.2 A	55.8mOhm	Shielded	10.00 x 10.00 x 4.10mm	Active	Yes
SRU1063-220Y	Bourns Inc.	22 µH	±30%	3 A	60mOhm Max	Shielded	10.00 x 10.00 x 6.80mm	Active	Yes

Engineering Selection Recommendations

Tier 1 - Closest Electrical Match (Shielded, Active Status):

B82464G4223M000 and B82464P4223M000 from EPCOS - TDK Electronics provide the closest electrical alignment with the ELL-ATV220M. Both maintain 22 µH inductance at ±20% tolerance, support 2.25 A current rating (exceeding the 2.2 A requirement), and feature shielded construction identical to the original. DCR of 52mOhm is within acceptable operating range. Both parts carry active product status and AEC-Q200 automotive qualification, ensuring long-term availability and manufacturing support. Footprint dimensions are slightly larger (10.40 x 10.40mm) but remain compatible with standard 0402-class land patterns.

Tier 2 - Higher Current Capacity (Shielded, Active Status):

SRU1038-220Y from Bourns Inc. matches the original footprint dimensions (10.00 x 10.00mm) and current rating (2.2 A) with shielded construction. Inductance tolerance is ±30% versus the original ±20%, and DCR is 55.8mOhm. This part is active and widely available. SRU1063-220Y offers increased current capacity (3 A) with shielded construction and active status, suitable for applications requiring thermal margin or future design upgrades.

Tier 3 - Unshielded Alternatives (Active Status):

B82476B1223M100 provides higher current capacity (2.95 A) with active status but features unshielded construction, making it suitable only for applications where EMI shielding is not critical. SDR1045-220M from Bourns maintains the original 2.2 A rating and footprint but exhibits significantly higher DCR (145mOhm Max) and unshielded design, limiting its application to low-EMI environments.

Not Recommended for New Designs:

SLF10165T-220M2R43PF carries "Not For New Designs" status and should be avoided for new production applications despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can I use an unshielded substitute in place of the shielded ELL-ATV220M?

A: Unshielded substitutes (B82476B1223M100, SDR1045-220M) are electrically compatible but lack EMI shielding. Use only if the original design does not require shielding for EMI performance or if the circuit layout provides alternative shielding measures.

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

A: Higher DC resistance increases power dissipation and heat generation. SDR1045-220M at 145mOhm Max produces significantly more heat than the original 45mOhm specification. Verify thermal performance in your application before selection.

Q: Are the slightly larger footprints of B82464G4223M000 and B82464P4223M000 compatible with my PCB?

A: The increase from 10.00mm to 10.40mm is within standard manufacturing tolerances for 0402-class inductors. Verify available land pattern space on your PCB. Most designs accommodate this variation without layout modification.

Q: What is the difference between B82464G4223M000 and B82464P4223M000?

A: Both parts are electrically identical with 22 µH inductance, 2.25 A rating, and 52mOhm Max DCR. The difference lies in internal construction series designation (G4 versus P4). Both are active and AEC-Q200 qualified. Selection between them depends on supplier availability.

Q: Why does SRU1038-220Y have ±30% tolerance instead of ±20%?

A: Inductance tolerance is a manufacturing specification that reflects the production process capability of each manufacturer. The ±30% tolerance of SRU1038-220Y is still within acceptable range for most applications but should be verified against circuit design requirements for inductance-critical functions.

Q: Is MSL rating 1 maintained across all substitutes?

A: Yes. All listed substitute parts maintain MSL rating 1 (Unlimited), ensuring compatibility with standard surface mount assembly processes without special moisture handling requirements.

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