Würth Elektronik 7447797300 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 7447797300 is a 2.5 µH shielded drum core wirewound inductor rated for 8.4 A continuous current with a maximum DC resistance of 10.2 mOhm. This component is designed for surface mount applications in nonstandard packaging and operates across the temperature range of -40°C to 150°C. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The WE-PDF series inductor provides shielding suitable for noise-sensitive circuit designs requiring stable inductance characteristics at 100 kHz test frequency.

Substiute Parts

7447797300

Würth ElektronikIn Stock: 15337447797300 Datasheet

Current PartRFQ

7447797250

Würth ElektronikIn Stock: 6727447797250 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Würth Elektronik 7447797300 is determined by strict equivalence across the following critical parameters:

• Inductance value: 2.5 µH with ±20% tolerance
• Current rating: 8.4 A minimum continuous current capacity
• Saturation current: 10.5 A minimum
• DC resistance: 10.2 mOhm maximum
• Core material: Nickel Zinc Ferrite (NiZn) shielded construction
• Self resonant frequency: 61 MHz
• Operating temperature range: -40°C to 150°C
• Mounting type: Surface mount
• Physical dimensions: 0.402" L x 0.402" W (10.20mm x 10.20mm) with 0.177" (4.50mm) maximum seated height
• Compliance: ROHS3 compliant, REACH unaffected

The substitute part 7447797250 maintains identical electrical and mechanical specifications while differing only in product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 7447797250 is a direct functional equivalent to the obsolete 7447797300. Both components are manufactured by Würth Elektronik within the WE-PDF series and maintain identical electrical specifications, mechanical dimensions, and compliance certifications. The primary distinction is product status: the 7447797300 is obsolete while the 7447797250 is active, ensuring continued availability and manufacturing support.

The 7447797250 is supplied in Tape & Reel (TR) packaging, which is standard for production environments, whereas the 7447797300 was supplied in bulk packaging. Both components satisfy ROHS3 compliance and REACH unaffected requirements, making them suitable for regulated applications.

For new designs or production continuity, the 7447797250 should be selected as the primary component. The active product status ensures supply chain reliability and access to manufacturer technical support.

Frequently Asked Questions (FAQ)

Q: Can the 7447797250 directly replace the 7447797300 in existing designs?

A: Yes. The 7447797250 is electrically and mechanically identical to the 7447797300. All critical parameters including inductance, current rating, DC resistance, core material, shielding, operating temperature range, and physical dimensions are equivalent. No circuit modifications are required.

Q: What is the difference between these two part numbers?

A: The 7447797250 and 7447797300 differ in product status and packaging format. The 7447797300 is obsolete and supplied in bulk packaging, while the 7447797250 is active and supplied in Tape & Reel (TR) packaging. Electrical and mechanical specifications are identical.

Q: Why is the 7447797300 listed as obsolete?

A: The 7447797300 has been discontinued by Würth Elektronik. The 7447797250 represents the active equivalent within the WE-PDF series and is the recommended replacement for ongoing production and new applications.

Q: Are there any compliance differences between these parts?

A: No. Both components are ROHS3 compliant and REACH unaffected. They meet identical regulatory requirements for restricted substances and environmental compliance.

Q: What packaging format should I specify for production orders?

A: The 7447797250 is supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes. This packaging format is suitable for high-volume production environments.

Q: Can I use the 7447797250 in applications originally designed for the 7447797300?

A: Yes. The 7447797250 is a direct substitute with no design modifications required. All electrical performance characteristics, thermal ratings, and mechanical fit are identical.