LF2020BNP-R522 Equivalent & Substitute Parts

Part Overview

The LF2020BNP-R522 is a common mode choke (CMC) manufactured by Sumida America Components Inc., designed for power line filtering applications. This through-hole component features a 5.2 mH inductance at 1 kHz with a maximum current rating of 1.3A and a DC resistance of 280 mOhm. The part is currently in active production status with 928 units available in inventory. Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter tolerances for this product category, or when design flexibility permits operation at alternative inductance values while maintaining core functional requirements.

Substiute Parts

LF2020BNP-R522

Sumida America Components Inc.In Stock: 1026LF2020BNP-R522 Datasheet

Current PartRFQ

LF2020NP-222

Sumida America Components Inc.In Stock: 9372LF2020NP-222 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LF2020BNP-R522 are qualified based on the following criteria:

Mandatory Matching Parameters:

• Manufacturer: Sumida America Components Inc.
• Series: LF
• Filter Type: Power Line
• Number of Lines: 2
• Current Rating (Max): 1.3A
• Mounting Type: Through Hole
• Package / Case: Vertical, 4 PC Pin

Allowable Variation Parameters:

• Inductance @ Frequency: Alternative inductance values within the LF2020 series are acceptable when circuit design permits operation at different filtering frequencies
• DC Resistance (DCR): Variations in DCR are acceptable provided the maximum rating does not exceed design thermal and power dissipation limits
• Physical Dimensions: Minor variations in length, width, and height are acceptable within PCB layout constraints

The LF2020NP-222 qualifies as a parametric equivalent because it maintains all mandatory matching parameters while offering an alternative inductance value (2.2 mH @ 1 kHz) and lower DC resistance (240 mOhm), making it suitable for applications where reduced inductance and lower power loss are beneficial.

Parameter Comparison

Engineering Selection Recommendations

Both the LF2020BNP-R522 and LF2020NP-222 are active production components from the same manufacturer and series. Selection between these parts depends on circuit requirements:

Select LF2020BNP-R522 when:

• Higher inductance (5.2 mH) is required for the filtering application
• The circuit design specifies this exact inductance value

Select LF2020NP-222 when:

• Lower inductance (2.2 mH) is acceptable or preferred
• Reduced DC resistance (240 mOhm vs. 280 mOhm) provides thermal or efficiency benefits
• RoHS3 compliance is a procurement requirement
• Moisture sensitivity level documentation is required

Both parts support identical current ratings (1.3A) and mounting configurations, ensuring mechanical and electrical compatibility within their respective inductance specifications.

Frequently Asked Questions (FAQ)

Q: Can LF2020NP-222 be used as a direct replacement for LF2020BNP-R522?

A: Direct replacement is possible only if the circuit design permits operation at 2.2 mH inductance instead of 5.2 mH. The lower inductance will affect filtering frequency response. Verify that the application's frequency requirements are compatible with the reduced inductance value before substitution.

Q: What is the primary difference between these two parts?

A: The main difference is inductance: LF2020BNP-R522 provides 5.2 mH while LF2020NP-222 provides 2.2 mH. Both maintain identical current ratings (1.3A) and mounting types. The LF2020NP-222 also features lower DC resistance (240 mOhm vs. 280 mOhm) and documented RoHS3 compliance.

Q: Are the physical dimensions compatible with the same PCB layout?

A: Both parts use through-hole vertical mounting with 4 PC pins. The LF2020NP-222 is slightly wider (16.20mm vs. 15.00mm) and marginally shorter (22.50mm vs. 23.00mm). Verify PCB layout clearances before substitution.

Q: Which part should be selected for new designs?

A: Selection depends on the required inductance value for your filtering application. Both parts are in active production. Confirm inductance requirements with your circuit design specifications before component selection.

Q: Is RoHS compliance a factor in substitution?

A: The LF2020NP-222 is documented as ROHS3 compliant with defined moisture sensitivity level (MSL 1). If RoHS compliance is a procurement requirement, the LF2020NP-222 is the qualified choice. Verify compliance requirements for your application before final selection.