ELL-8TP220MB Equivalent & Substitute Parts

Part Overview

The ELL-8TP220MB is a 22 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 2 A continuous current with 55mOhm DC resistance. This component is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. The part features surface mount packaging in a nonstandard corner terminal configuration with 8.00mm x 8.00mm footprint dimensions and operates across the -40°C to 105°C temperature range.

Substiute Parts

ELL-8TP220MB

Panasonic Electronic ComponentsIn Stock: 1154ELL-8TP220MB Datasheet

Current PartRFQ

NR8040T220M

Taiyo YudenIn Stock: 1346NR8040T220M Datasheet

SimilarRFQ

SRU8043-220Y

Bourns Inc.In Stock: 17974SRU8043-220Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELL-8TP220MB are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 22 µH (exact match required)
• Inductance tolerance: ±20% or tighter
• Current rating: minimum 2 A continuous
• Saturation current (Isat): minimum 2.2 A
• Shielding: shielded construction required
• Mounting type: surface mount
• Footprint: 8.00mm x 8.00mm
• Height: maximum 5.00mm seated height
• Operating temperature range: must encompass -40°C to 105°C minimum
• RoHS3 compliance required

The substitute parts identified—NR8040T220M (Taiyo Yuden) and SRU8043-220Y (Bourns Inc.)—meet these core electrical and mechanical requirements, enabling direct functional replacement in applications requiring 22 µH inductance at 2 A or higher current ratings with shielded construction.

Parameter Comparison

Engineering Selection Recommendations

SRU8043-220Y (Bourns Inc.) is the primary substitute recommendation. This part carries Active product status, ensuring long-term availability and supply chain stability. It meets all core electrical parameters with 2.2 A current rating and 72.5mOhm DC resistance. The extended operating temperature range (-40°C to 125°C) exceeds the original specification. ROHS3 compliance and MSL 1 rating match the original part. Height of 4.60mm is within the 5.00mm maximum constraint.

NR8040T220M (Taiyo Yuden) qualifies as a secondary substitute. While electrically compatible with matching 22 µH inductance and 2.2 A current rating, this part carries Not For New Designs status, limiting its suitability for new production. The 85.8mOhm maximum DC resistance is higher than the original specification. Operating temperature minimum of -25°C does not fully cover the original -40°C lower limit. ROHS3 compliance and MSL 1 rating are maintained. Height of 4.00mm provides additional margin.

Both substitute parts maintain the required 8.00mm x 8.00mm footprint and shielded construction necessary for direct replacement in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can SRU8043-220Y directly replace ELL-8TP220MB in existing designs?

A: Yes. Both parts share identical 22 µH inductance, 8.00mm x 8.00mm footprint, and shielded surface mount construction. The SRU8043-220Y provides higher current rating (2.2 A vs. 2 A) and extended temperature range, making it functionally compatible for direct PCB substitution.

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

A: The NR8040T220M exhibits 85.8mOhm maximum DCR compared to the original 55mOhm specification. The SRU8043-220Y provides 72.5mOhm, closer to the original. Higher DCR increases resistive losses and heat generation at rated current. Circuit thermal analysis is required if the original design operated near maximum current limits.

Q: Why does SRU8043-220Y show lower saturation current (1.7 A) than the original (2.2 A)?

A: Saturation current reflects the current level at which inductance begins to degrade due to core saturation. The SRU8043-220Y's 1.7 A saturation point is lower than the original 2.2 A specification. For applications operating continuously at or above 1.7 A, this part may not maintain specified inductance. Verify circuit current profiles against this parameter.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. ELL-8TP220MB, NR8040T220M, and SRU8043-220Y all carry ROHS3 Compliant certification, meeting environmental and regulatory requirements for lead-free manufacturing.

Q: What is the significance of product status (Obsolete, Not For New Designs, Active)?

A: Product status indicates supply chain availability and manufacturer support. Active status (SRU8043-220Y) ensures continued production and long-term availability. Obsolete (ELL-8TP220MB) and Not For New Designs (NR8040T220M) indicate limited or declining availability, making them unsuitable for new production programs.

Q: Do the substitute parts fit the same PCB layout?

A: Yes. All three parts maintain the 8.00mm x 8.00mm footprint and surface mount configuration. The SRU8043-220Y and NR8040T220M are slightly shorter (4.60mm and 4.00mm respectively vs. 5.00mm original), providing additional clearance margin in constrained layouts.

Q: What is MSL 1 (Unlimited) and why does it matter?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All three parts carry this rating, eliminating moisture sensitivity concerns during procurement and assembly.