Würth Elektronik 744776215 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744776215 is a 150 µH unshielded drum core wirewound inductor rated for 810 mA continuous current with 470mOhm maximum DC resistance. This surface mount component operates across -40°C to 125°C and is designed for applications requiring stable inductance in compact form factors. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

744776215

Würth ElektronikIn Stock: 3701744776215 Datasheet

Current PartRFQ

SDR1006-151KL

Bourns Inc.In Stock: 4673SDR1006-151KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns Inc. SDR1006-151KL qualifies as a direct substitute based on the following critical parameters:

Inductance value matches at 150 µH with identical ±10% tolerance. DC resistance is equivalent at 470mOhm maximum. Core material, shielding configuration, and operating temperature range are identical. Both components are surface mount, ferrite drum core wirewound inductors with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Current rating variance exists: the main part supports 810 mA while the substitute supports 780 mA. This 30 mA difference represents a 3.7% reduction in rated current capacity. The substitute's saturation current (Isat) of 1.4A exceeds the main part's 900mA specification, providing additional margin in saturation performance.

Physical dimensions show minor variations within acceptable tolerances for the nonstandard package classification. Both components maintain compatible form factors for standard PCB assembly processes.

Parameter Comparison

Engineering Selection Recommendations

Both components maintain Active product status with full ROHS3 compliance and REACH unaffected classification. Selection between the Würth Elektronik 744776215 and Bourns SDR1006-151KL depends on application current requirements. Applications operating at or below 780 mA continuous current can utilize the Bourns substitute without performance degradation. Applications requiring the full 810 mA rating must use the primary Würth Elektronik part. Both components are suitable for -40°C to 125°C operating environments and meet identical regulatory requirements for modern electronic assemblies.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SDR1006-151KL replace the Würth Elektronik 744776215 in all applications?

A: Substitution is valid for applications where continuous current does not exceed 780 mA. The 30 mA current rating difference must be evaluated against actual circuit requirements. All other electrical and mechanical parameters are equivalent.

Q: Are the physical dimensions compatible for PCB assembly?

A: Both components are classified as nonstandard package types with minor dimensional variations. The Würth part measures 10.00mm x 9.00mm x 5.90mm (max height), while the Bourns part measures 9.80mm x 9.80mm x 5.80mm (max height). These differences are within acceptable tolerances for standard surface mount assembly processes.

Q: Do both parts have identical inductance tolerance?

A: Yes, both components specify ±10% inductance tolerance at their respective test frequencies (10 kHz for Würth, 1 kHz for Bourns). The tolerance band is equivalent for circuit design purposes.

Q: What is the difference in saturation current between these parts?

A: The Würth part saturates at 900mA, while the Bourns part saturates at 1.4A. The Bourns substitute provides additional saturation margin, which may benefit applications with transient current spikes.

Q: Are moisture sensitivity and storage requirements identical?

A: Both components carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Storage and handling requirements are equivalent.