Würth Elektronik 831758200 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 831758200 is a 8.2 µH shielded molded inductor rated for 8.5 A continuous current with a DC resistance of 22.5mOhm. This component is part of the WE-MASH-I series and carries AEC-Q200 automotive qualification. The part is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

831758200

Würth ElektronikIn Stock: 1130831758200 Datasheet

Current PartRFQ

PA4344.822NLT

Pulse ElectronicsIn Stock: 1991PA4344.822NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 831758200 is determined by the following critical parameters:

• Inductance Value: Must be 8.2 µH (±10% tolerance acceptable)
• Shielding Type: Must be shielded to maintain electromagnetic isolation
• Operating Temperature Range: Must support -40°C ~ 125°C minimum
• AEC-Q200 Compliance: Required for automotive applications
• Mounting Type: Surface mount (SMD) compatibility
• Current Handling: Continuous current rating must meet or exceed 8.5 A
• DC Resistance: Lower DCR values are acceptable as they reduce power dissipation

The Pulse Electronics PA4344.822NLT meets these substitution criteria with matching inductance, shielding, temperature range, and AEC-Q200 qualification. The substitute offers improved electrical performance with higher current ratings and lower DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The Pulse Electronics PA4344.822NLT is a qualified substitute for the obsolete Würth Elektronik 831758200. Both components maintain AEC-Q200 automotive qualification and ROHS3 compliance. The substitute provides superior electrical performance with doubled continuous current capacity (18 A vs 8.5 A) and reduced DC resistance (10.8mOhm vs 22.5mOhm), resulting in lower thermal dissipation.

Physical dimensions differ between the two components. The PA4344.822NLT occupies a larger footprint (17.70mm x 17.20mm vs 13.00mm x 13.00mm) with a seated height of 7.00mm. PCB layout modifications may be required to accommodate the larger package geometry. Both components are surface mount devices with identical operating temperature ranges and moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the PA4344.822NLT directly replace the 831758200 without circuit modifications?

A: Electrical substitution is valid. The inductance value, shielding, temperature range, and AEC-Q200 ratings are identical. However, the larger package footprint (17.70mm x 17.20mm vs 13.00mm x 13.00mm) requires PCB layout verification. Mechanical clearance and trace routing must be assessed for your specific application.

Q: What is the significance of the lower DC resistance in the substitute part?

A: The PA4344.822NLT exhibits 10.8mOhm maximum resistance compared to 22.5mOhm in the original part. This 52% reduction in DC resistance decreases resistive losses and thermal generation during operation, improving overall circuit efficiency.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the 831758200 and PA4344.822NLT carry AEC-Q200 qualification, confirming suitability for automotive-grade applications with the specified temperature and reliability requirements.

Q: What packaging format is the substitute supplied in?

A: The PA4344.822NLT is supplied in Tape & Reel (TR) format. The original 831758200 packaging format is not specified in the available data.

Q: Does the higher current rating of the substitute affect circuit behavior?

A: The PA4344.822NLT is rated for 18 A continuous current versus 8.5 A for the original part. This higher rating does not negatively affect circuits designed for the lower current specification. The component will operate within safe margins in applications requiring 8.5 A or less.