UU16LFNP-402 Equivalent & Substitute Parts

Part Overview

The UU16LFNP-402 is a 4 mH Common Mode Choke (CMC) manufactured by Sumida America Components Inc., designed for power line filtering applications. This through-hole mounted component operates at 1.2A maximum current with a DC resistance of 270 mOhm and is rated for 2-line configurations. The part maintains Active product status and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity).

Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter tolerances for this product category, ensuring functional compatibility in power line filtering circuits while accommodating design flexibility and inventory availability.

Substiute Parts

UU16LFNP-402

Sumida America Components Inc.In Stock: 919UU16LFNP-402 Datasheet

Current PartRFQ

LF2020NP-222

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UU16LFNP-402 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Filter Type: Power Line
• Number of Lines: 2
• Mounting Type: Through Hole
• Package / Case: Vertical, 4 PC Pin
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Parameter Variance:

• Inductance @ 1 kHz: Substitute parts may operate at different inductance values provided they serve equivalent power line filtering function
• Current Rating (Max): Substitute parts must maintain current rating equal to or greater than the original specification
• DC Resistance (Max): Substitute parts must maintain DCR equal to or less than the original specification to ensure thermal performance equivalence

The LF2020NP-222 qualifies as a parametric equivalent based on matching all mandatory criteria while operating within acceptable electrical performance boundaries for power line common mode choke applications.

Parameter Comparison

Engineering Selection Recommendations

Both the UU16LFNP-402 and LF2020NP-222 maintain Active product status with ROHS3 compliance and MSL Level 1 ratings, ensuring long-term availability and environmental regulatory alignment.

The LF2020NP-222 operates at reduced inductance (2.2 mH versus 4 mH) while providing superior current handling (1.3A versus 1.2A) and lower DC resistance (240 mOhm versus 270 mOhm). Selection between these parts depends on circuit-specific inductance requirements. The UU16LFNP-402 is appropriate for applications requiring 4 mH filtering characteristics. The LF2020NP-222 is appropriate for applications where lower inductance filtering is acceptable and where the improved current capacity and reduced thermal dissipation provide design advantages.

Both parts are manufactured by the same supplier, share identical mechanical packaging, and meet all compliance requirements for direct substitution within power line filtering applications.

Frequently Asked Questions (FAQ)

Q: Can the LF2020NP-222 directly replace the UU16LFNP-402 in my circuit?

A: Direct replacement is possible only if your circuit design accommodates the reduced inductance value (2.2 mH versus 4 mH). Both parts share identical mounting type, package configuration, and compliance ratings. Verify that the lower inductance does not compromise your power line filtering performance requirements.

Q: What is the difference in thermal performance between these parts?

A: The LF2020NP-222 exhibits lower DC resistance (240 mOhm versus 270 mOhm), resulting in reduced resistive heating at equivalent current levels. This represents approximately 11% lower thermal dissipation, providing improved thermal margin in current-limited applications.

Q: Are both parts suitable for through-hole PCB assembly?

A: Both the UU16LFNP-402 and LF2020NP-222 are configured as through-hole mounted components with vertical, 4-pin package geometry. PCB footprint compatibility is identical.

Q: Do these parts have different environmental compliance ratings?

A: Both parts are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating. Environmental and regulatory compliance is equivalent.

Q: Which part should I select for new designs?

A: Selection is based on inductance requirement. If your circuit requires 4 mH filtering, use the UU16LFNP-402. If your circuit requires 2.2 mH filtering or can accommodate lower inductance, the LF2020NP-222 offers improved current capacity and lower thermal dissipation.