Pulse Electronics P0420T Common Mode Choke Equivalent & Substitute Parts

Part Overview

The Pulse Electronics P0420T is a 2-line common mode choke (CMC) designed for power line filtering applications. This surface mount component is rated for 3.3A maximum current with 60mOhm DC resistance and operates across the temperature range of -40°C to 120°C. The P0420T is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

P0420T

Pulse ElectronicsIn Stock: 2300P0420T Datasheet

Current PartRFQ

P0420NLT

Pulse ElectronicsIn Stock: 9966P0420NLT Datasheet

DirectRFQ

P0421NLT

Pulse ElectronicsIn Stock: 3068P0421NLT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P0420T is determined by strict equivalence across the following critical parameters:

• Electrical Performance: Current rating of 3.3A and DC resistance of 60mOhm maximum
• Functional Design: 2-line common mode choke for power line filtering
• Physical Compatibility: Surface mount package with identical dimensions (0.770" L x 0.670" W, 9.91mm height maximum) and 4 PC pad configuration
• Environmental Specifications: Operating temperature range of -40°C to 120°C and MSL rating of 1

The identified substitute parts P0420NLT and P0421NLT meet all these criteria. Both are manufactured by Pulse Electronics and maintain identical electrical and mechanical specifications to the P0420T. The primary distinction between these substitutes and the original part is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

Both P0420NLT and P0421NLT are suitable replacements for the obsolete P0420T based on complete electrical and mechanical equivalence. Selection between these two active alternatives should be based on the following factors:

Product Status: Both substitute parts carry active product status, ensuring long-term availability and manufacturing support compared to the obsolete P0420T.

Compliance: P0420NLT and P0421NLT are both ROHS3 compliant, whereas the P0420T is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, the substitute parts provide regulatory alignment.

Packaging: Both substitutes are supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. The P0420T was supplied in bulk packaging. Tape & Reel format improves handling efficiency and reduces component damage during manufacturing.

Inventory Availability: P0420NLT has 9,897 pieces in stock, while P0421NLT has 2,986 pieces in stock. Procurement decisions may be influenced by required order quantities and lead time considerations.

Frequently Asked Questions (FAQ)

Q: Can P0420NLT and P0421NLT be used interchangeably with P0420T?

A: Yes. Both substitute parts maintain identical electrical specifications (3.3A current rating, 60mOhm DC resistance), mechanical dimensions (0.770" L x 0.670" W, 9.91mm height), and operating temperature range (-40°C to 120°C). The physical footprint and pad configuration are identical, allowing direct PCB layout compatibility.

Q: What is the difference between P0420NLT and P0421NLT?

A: Both parts are parametrically equivalent with identical electrical and mechanical specifications. The distinction lies in inventory availability and potentially internal design revisions within Pulse Electronics' product line. Both are active products with ROHS3 compliance and Tape & Reel packaging.

Q: Why is the P0420T classified as obsolete?

A: The P0420T has been superseded by active product variants (P0420NLT and P0421NLT) that offer improved compliance status and modern packaging formats. Obsolete classification indicates that Pulse Electronics no longer manufactures this specific part number.

Q: Are there any compliance differences between the main part and substitutes?

A: Yes. The P0420T is RoHS non-compliant, while both P0420NLT and P0421NLT are ROHS3 compliant. For applications requiring RoHS compliance, the substitute parts are the appropriate selection. All three parts maintain identical REACH Unaffected status.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) packaging used for P0420NLT and P0421NLT provides the same component as bulk packaging. The packaging format affects only handling, storage, and assembly process compatibility, not electrical or mechanical performance.

Q: What is the MSL rating and why is it relevant?

A: All three parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture bake-out requirements. This simplifies inventory management and reduces handling constraints during storage and assembly.