744774156 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744774156 is a 56 µH unshielded drum core wirewound inductor rated for 770 mA continuous current with a maximum DC resistance of 420 mOhm. This component is part of the WE-PD2 series and is actively manufactured. Equivalent and substitute parts are identified when circuit designs require alternative sourcing due to inventory constraints, supply chain considerations, or design flexibility within specified electrical and mechanical tolerances.

Substiute Parts

744774156

Würth ElektronikIn Stock: 1493744774156 Datasheet

Current PartRFQ

SDR0604-560KL

Bourns Inc.In Stock: 3825SDR0604-560KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 744774156 is determined by the following critical parameters:

• Inductance Value: 56 µH with ±10% tolerance
• Current Rating: Minimum 770 mA continuous current capability
• DC Resistance: Maximum 420 mOhm
• Core Type: Ferrite drum core, unshielded
• Saturation Current: Minimum 900 mA
• Operating Temperature: -40°C ~ 125°C range
• Mounting: Surface mount, nonstandard package
• Compliance: ROHS3 compliant, REACH unaffected

The Bourns SDR0604-560KL meets these substitution criteria with equivalent inductance, matching DC resistance specification, compatible saturation current rating, and identical operating temperature range. The current rating of 680 mA on the substitute part remains within acceptable circuit design margins when the application does not require the full 770 mA rating of the primary part.

Parameter Comparison

Engineering Selection Recommendations

Both the 744774156 and SDR0604-560KL are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use.

The 744774156 provides a continuous current rating of 770 mA. The SDR0604-560KL substitute offers 680 mA continuous current rating. Selection between these parts depends on circuit current requirements. Applications operating at or below 680 mA continuous current can utilize the SDR0604-560KL without performance degradation. Applications requiring the full 770 mA rating must use the 744774156.

Both components share identical inductance values, DC resistance specifications, saturation current ratings, and operating temperature ranges, ensuring functional equivalence within their respective current ratings.

Frequently Asked Questions (FAQ)

Q: Can the SDR0604-560KL replace the 744774156 in all applications?

A: The SDR0604-560KL is functionally equivalent for applications where continuous current does not exceed 680 mA. If your circuit requires the full 770 mA rating, the 744774156 is the appropriate selection.

Q: Are the physical dimensions compatible between these parts?

A: Both components are surface mount inductors with nonstandard packages. The 744774156 measures 5.80mm L x 5.20mm W x 4.85mm H (seated). The SDR0604-560KL measures 5.80mm L x 5.80mm W x 4.80mm H (seated). Verify PCB layout compatibility before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 744774156 and SDR0604-560KL are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What is the inductance tolerance for both parts?

A: Both components have ±10% inductance tolerance at their respective test frequencies.

Q: Are there differences in DC resistance between these parts?

A: No. Both parts specify a maximum DC resistance of 420 mOhm, ensuring equivalent power dissipation characteristics.

Q: What saturation current ratings apply to these inductors?

A: Both the 744774156 and SDR0604-560KL have a saturation current (Isat) rating of 900 mA.