ELL-ATP220MB Equivalent & Substitute Parts

Part Overview

The ELL-ATP220MB is a 22 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 2.5 A with a DC resistance of 38mOhm. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part features surface mount packaging with nonstandard corner terminals and operates across industrial temperature ranges with ROHS3 compliance.

Key Parameters

Parameter	Value
Inductance	22 µH
Current Rating	2.5 A
DC Resistance (DCR)	38mOhm
Tolerance	±20%
Shielding	Shielded
Mounting Type	Surface Mount
Package Size	10.00mm x 10.00mm
Inductance Test Frequency	100 kHz
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ELL-ATP220MB are qualified based on the following electrical and mechanical parameters:

Inductance Value: 22 µH (exact match required)
Current Rating: Minimum 2.5 A to support the original design current
DC Resistance: Maximum 50mOhm to maintain acceptable power dissipation characteristics
Shielding: Shielded construction to preserve electromagnetic isolation
Mounting Type: Surface mount with compatible footprint dimensions (10.00mm x 10.00mm)
Tolerance: ±20% or tighter to ensure circuit performance
Compliance: ROHS3 compliant and MSL 1 rated for manufacturing compatibility

The substitute parts listed below meet these criteria and are available as active products from established manufacturers.

Parameter Comparison

Parameter	ELL-ATP220MB (Panasonic)	7447714220 (Würth Elektronik)	SRU1038-220Y (Bourns Inc.)
Inductance	22 µH	22 µH	22 µH
Current Rating (Amps)	2.5 A	3 A	2.2 A
Current - Saturation (Isat)	2.2 A	3.6 A	2.3 A
DC Resistance (DCR)	38mOhm	50mOhm Max	55.8mOhm
Tolerance	±20%	±20%	±30%
Shielding	Shielded	Shielded	Shielded
Type	Wirewound	Drum Core, Wirewound	Drum Core, Wirewound
Package Size (mm)	10.00 x 10.00	10.00 x 10.00	10.00 x 10.00
Height - Seated (Max)	4.50mm	5.00mm	4.10mm
Frequency - Self Resonant	—	14.5 MHz	12 MHz
Operating Temperature	—	-40°C ~ 125°C	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

7447714220 (Würth Elektronik WE-PD Performance Series)

This substitute provides the highest current rating at 3 A with saturation current of 3.6 A, exceeding the original 2.5 A specification. DC resistance of 50mOhm remains within acceptable limits. The part carries AEC-Q200 automotive qualification and ROHS3 compliance. Height of 5.00mm represents a 0.50mm increase from the original design. This option is suitable for applications requiring enhanced current headroom and automotive-grade reliability.

SRU1038-220Y (Bourns Inc. SRU1038 Series)

This substitute meets the minimum current requirement at 2.2 A with saturation current of 2.3 A, closely matching the original electrical characteristics. DC resistance of 55.8mOhm is slightly elevated but remains within functional limits. The part features the lowest profile at 4.10mm height, providing the best mechanical compatibility. ROHS3 and REACH compliance are confirmed. This option is optimal for space-constrained applications where the original footprint must be preserved.

Both substitutes are active products with established supply chains and full compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can the 7447714220 be used as a direct replacement for the ELL-ATP220MB?

A: Yes. The 7447714220 meets all critical electrical parameters: 22 µH inductance, 3 A current rating (exceeds 2.5 A requirement), shielded construction, and identical 10.00mm x 10.00mm footprint. The 5.00mm height is 0.50mm taller than the original 4.50mm specification and must be verified against PCB clearance constraints.

Q: What are the differences between the two substitute options?

A: The 7447714220 provides higher current capacity (3 A vs. 2.2 A) and lower DC resistance (50mOhm vs. 55.8mOhm), making it suitable for high-current applications. The SRU1038-220Y offers a lower profile (4.10mm vs. 5.00mm) and tighter tolerance (±30% vs. ±20%), making it preferable for space-limited designs. Both maintain identical inductance and shielding characteristics.

Q: Are there packaging differences between these substitutes?

A: Both substitutes are supplied in Tape & Reel (TR) packaging, compatible with standard pick-and-place assembly equipment. The ELL-ATP220MB original part information does not specify packaging format. Confirm tape specifications with your procurement department if custom reel configurations are required.

Q: Do these substitutes support the same operating temperature range?

A: The original ELL-ATP220MB operating temperature is not specified in available documentation. Both substitutes operate across -40°C to 125°C, which covers standard industrial and automotive temperature ranges. Confirm your application's temperature requirements before final selection.

Q: What is the impact of higher DC resistance in the SRU1038-220Y?

A: The SRU1038-220Y exhibits 55.8mOhm DCR compared to the original 38mOhm. This 17.8mOhm increase results in proportionally higher power dissipation at rated current. At 2.5 A, the additional dissipation is approximately 0.22 W. Verify thermal performance in your specific circuit application.

Q: Are all substitutes ROHS3 compliant?

A: Yes. Both the 7447714220 and SRU1038-220Y carry ROHS3 compliance certification, matching the original ELL-ATP220MB specification. Both are also MSL 1 rated for unlimited moisture sensitivity handling.

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