ELL-CTV220M Equivalent & Substitute Parts

Part Overview

The ELL-CTV220M is a 22 µH shielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 2.7 A continuous current with 37 mOhm DC resistance. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain the same inductance value, shielding characteristics, and surface mount package footprint while meeting current application demands.

Key Parameters

Parameter	Value
Inductance	22 µH
Tolerance	±20%
Current Rating	2.7 A
DC Resistance (DCR)	37 mOhm
Shielding	Shielded
Core Type	Drum Core, Wirewound
Mounting Type	Surface Mount
Package Footprint	12.00 mm x 12.00 mm
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ELL-CTV220M is determined by the following mandatory parameters:

Inductance Value: Must be 22 µH with ±20% tolerance
Shielding: Must be shielded configuration
Mounting Type: Must be surface mount
Package Footprint: Must accommodate 12.00 mm x 12.00 mm base dimensions
Current Rating: Must equal or exceed 2.7 A minimum
DC Resistance: Should not significantly exceed 37 mOhm to maintain thermal performance
Compliance: Must maintain ROHS3 compliance and MSL 1 rating

Two active substitute parts meet these criteria: Würth Elektronik 7447709220 and Sumida America Components CDRH125/LDNP-220MC. Both maintain identical inductance, shielding, and footprint specifications while offering improved current ratings and active product status.

Parameter Comparison

Parameter	ELL-CTV220M (Panasonic)	7447709220 (Würth Elektronik)	CDRH125/LDNP-220MC (Sumida)
Inductance	22 µH	22 µH	22 µH
Tolerance	±20%	±20%	±20%
Current Rating (Amps)	2.7 A	5.3 A	3.28 A
DC Resistance (DCR)	37 mOhm	28 mOhm Max	44 mOhm Max
Shielding	Shielded	Shielded	Shielded
Package Footprint	12.00 mm x 12.00 mm	12.00 mm x 12.00 mm	12.00 mm x 12.00 mm
Height - Seated (Max)	4.50 mm	10.00 mm	6.00 mm
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Würth Elektronik 7447709220 is the primary substitute for applications requiring maximum performance margin. This part delivers 5.3 A current rating with superior 28 mOhm maximum DC resistance, reducing thermal dissipation compared to the original specification. The component carries AEC-Q200 automotive qualification and operates across -40°C to 125°C, providing extended environmental capability. Height of 10.00 mm requires PCB layout verification for clearance constraints.

Sumida America Components CDRH125/LDNP-220MC serves as an alternative substitute with moderate performance enhancement. Current rating of 3.28 A exceeds the original 2.7 A requirement with minimal thermal penalty at 44 mOhm maximum DCR. Reduced height of 6.00 mm offers improved PCB integration for space-constrained layouts. This part maintains full ROHS3 compliance with unlimited MSL rating.

Both substitutes are active products with established supply chains, eliminating obsolescence risk associated with the original ELL-CTV220M component.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7447709220 be used as a direct replacement in existing PCB designs?

A: The 7447709220 maintains identical inductance, tolerance, shielding, and footprint specifications. However, the seated height increases from 4.50 mm to 10.00 mm. PCB layout must be verified to confirm clearance above the component does not conflict with adjacent circuitry or enclosure constraints.

Q: What is the primary advantage of the Sumida CDRH125/LDNP-220MC substitute?

A: The CDRH125/LDNP-220MC provides a height-optimized solution at 6.00 mm seated height, reducing vertical profile by 2.50 mm compared to the original part while maintaining all electrical specifications. Current rating of 3.28 A provides adequate margin for the original 2.7 A application.

Q: Are both substitute parts suitable for automotive applications?

A: The Würth Elektronik 7447709220 carries AEC-Q200 qualification for automotive use. The Sumida CDRH125/LDNP-220MC does not list automotive certification in the provided specifications. Application requirements should determine suitability.

Q: How do DC resistance values affect component selection?

A: The original ELL-CTV220M specifies 37 mOhm. The Würth part offers 28 mOhm maximum, reducing I²R losses by approximately 24% at rated current. The Sumida part at 44 mOhm maximum increases losses by approximately 19%. Selection depends on thermal budget and power dissipation requirements of the application.

Q: What is the impact of inductance tolerance on circuit performance?

A: All three parts maintain ±20% inductance tolerance. This tolerance band is identical across the original and substitute parts, ensuring equivalent circuit behavior within the specified tolerance window.

Q: Are there packaging or supply chain differences between the substitutes?

A: The Sumida CDRH125/LDNP-220MC is available in Cut Tape (CT) and Digi-Reel packaging with 300,200 pieces in stock. The Würth 7447709220 shows 9,407 pieces available. Both maintain ROHS3 compliance and MSL 1 rating for standard handling and storage.

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