Würth Elektronik 831750220 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 831750220 is a 220 nH shielded molded inductor rated for 30 A continuous current with 1.4 mOhm DC resistance, designed for surface mount applications in the WE-MASH-I series. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing production and procurement requirements. The part meets AEC-Q200 automotive qualification standards and operates across the -40°C to 125°C temperature range.

Substiute Parts

831750220

Würth ElektronikIn Stock: 789831750220 Datasheet

Current PartRFQ

PA4343.221NLT

Pulse ElectronicsIn Stock: 3518PA4343.221NLT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 831750220 is determined by the following critical parameters:

• Inductance Value: Must be 220 nH with ±20% tolerance
• Shielding Configuration: Must be shielded
• Mounting Technology: Must be surface mount
• Operating Temperature Range: Must support -40°C to 125°C minimum
• Regulatory Compliance: Must maintain AEC-Q200 qualification and ROHS3 compliance
• Current Handling: Substitute must support minimum 30 A continuous current rating
• DC Resistance: Lower or equivalent DCR is acceptable for thermal performance improvement

The Pulse Electronics PA4343.221NLT meets all substitution criteria with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Pulse Electronics PA4343.221NLT is a direct functional substitute for the obsolete Würth Elektronik 831750220. Both components share identical inductance values, tolerance specifications, temperature operating ranges, and regulatory compliance certifications. The PA4343.221NLT maintains AEC-Q200 qualification and ROHS3 compliance, meeting all automotive and environmental standards required by the original part.

The substitute part provides superior electrical performance with 53 A continuous current rating versus 30 A, 112 A saturation current versus 60 A, and reduced DC resistance of 0.6 mOhm maximum compared to 1.4 mOhm. These improvements result in lower thermal dissipation and enhanced current handling capacity without compromising the core electrical characteristics of the original design.

Physical dimensions differ slightly (14.00mm × 12.80mm versus 13.00mm × 13.00mm), requiring PCB layout verification for mechanical fit. The substitute is supplied in Tape & Reel packaging format, standard for production environments.

Frequently Asked Questions (FAQ)

Q: Can the PA4343.221NLT replace the 831750220 in existing designs?

A: Yes. Both parts maintain identical inductance values, tolerance specifications, operating temperature ranges, and AEC-Q200 automotive qualification. PCB layout must be verified for the dimensional differences between the two packages.

Q: What are the key differences between these parts?

A: The primary differences are product status (obsolete versus active), current ratings (30 A versus 53 A continuous), saturation current (60 A versus 112 A), DC resistance (1.4 mOhm versus 0.6 mOhm maximum), and physical dimensions (13.00mm × 13.00mm versus 14.00mm × 12.80mm). Electrical performance is equivalent for the specified 220 nH inductance value.

Q: Are both parts RoHS and AEC-Q200 compliant?

A: Yes. Both the 831750220 and PA4343.221NLT are ROHS3 compliant and carry AEC-Q200 automotive qualification ratings.

Q: What packaging formats are available?

A: The 831750220 is supplied in standard SMD packaging. The PA4343.221NLT is supplied in Tape & Reel format, which is standard for high-volume production procurement.

Q: Do these parts have identical moisture sensitivity ratings?

A: Yes. Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.