74456268 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 74456268 is a 680 µH unshielded drum core wirewound inductor rated for 500 mA with a maximum DC resistance of 2.6Ohm, packaged in surface mount nonstandard form factor. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives meeting the same electrical and mechanical specifications.

Substiute Parts

74456268

Würth ElektronikIn Stock: 141174456268 Datasheet

Current PartRFQ

SDR1005-681KL

Bourns Inc.In Stock: 12238SDR1005-681KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74456268 is determined by the following critical parameters:

• Inductance value: 680 µH ±10%
• DC resistance: 2.6Ohm maximum
• Core type: Ferrite, unshielded drum core
• Mounting: Surface mount, nonstandard package
• Physical dimensions: 12.70mm x 10.00mm footprint with height compatibility
• Operating temperature: -40°C to 125°C
• Compliance: RoHS3 compliant

The Bourns SDR1005-681KL meets the inductance, DC resistance, core material, shielding, mounting type, package footprint, temperature range, and RoHS3 compliance requirements. Current rating differences are noted in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Both the 74456268 and SDR1005-681KL are Active product status components with identical RoHS3 compliance and REACH unaffected status. The primary distinction is current rating capacity: the 74456268 supports 500 mA continuous current with 550 mA saturation, while the SDR1005-681KL is rated for 350 mA continuous current with 400 mA saturation. Selection between these parts depends on circuit current requirements. Applications operating at or below 350 mA continuous current may use either part. Applications requiring current above 350 mA must use the 74456268. Both components share identical inductance, DC resistance, core material, shielding configuration, mounting type, package footprint, temperature range, and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can SDR1005-681KL replace 74456268 in all applications?

A: SDR1005-681KL is suitable for applications where circuit current does not exceed 350 mA continuous. The 74456268 must be used for circuits requiring 350 mA to 500 mA continuous current operation.

Q: Are the package dimensions identical?

A: The length and width dimensions are identical at 12.70mm x 10.00mm. The seated height differs: 74456268 is 5.30mm maximum, SDR1005-681KL is 5.00mm maximum. Both fit the same PCB footprint.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both 74456268 and SDR1005-681KL are RoHS3 compliant, REACH unaffected, and rated for -40°C to 125°C operating temperature.

Q: What is the difference in self-resonant frequency?

A: The 74456268 has a self-resonant frequency of 2.3 MHz, while SDR1005-681KL is 3 MHz. This difference may affect high-frequency circuit behavior.

Q: Are both parts available in tape and reel packaging?

A: Yes. Both 74456268 and SDR1005-681KL are supplied in tape and reel (TR) packaging for automated assembly.