Würth Elektronik 744053270 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744053270 is a 27 µH shielded drum core wirewound inductor rated for 1.05 A continuous current with a maximum DC resistance of 160 mOhm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is classified as an active product with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain disruptions, or design flexibility needs.

Substiute Parts

744053270

Würth ElektronikIn Stock: 1275744053270 Datasheet

Current PartRFQ

SRR5028-270Y

Bourns Inc.In Stock: 2405SRR5028-270Y Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Würth Elektronik 744053270 is determined by strict equivalence across the following critical parameters:

• Inductance Value: 27 µH at 100 kHz test frequency with ±30% tolerance
• Current Rating: Minimum 1.05 A continuous current capability
• DC Resistance: Maximum 160 mOhm to ensure thermal performance equivalence
• Core Material & Shielding: Ferrite-based shielded drum core construction
• Mounting & Package: Surface mount technology with compatible footprint dimensions (5.80mm × 5.80mm × 3.00mm maximum height)
• Environmental Compliance: RoHS3 compliance and MSL 1 rating required
• Operating Temperature: Full -40°C to 125°C range support

The Bourns Inc. SRR5028-270Y meets all substitution criteria with identical electrical performance and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the Würth Elektronik 744053270 and Bourns SRR5028-270Y are active products with full RoHS3 compliance and REACH unaffected status. The Bourns SRR5028-270Y demonstrates superior saturation current performance (900 mA versus 800 mA) and higher self-resonant frequency (17 MHz versus 15 MHz), providing additional design margin in high-frequency or high-current transient applications. Selection between these parts should be based on availability, lead time, and supply chain requirements, as both components satisfy identical electrical and mechanical specifications for the 27 µH 1.05 A inductor application.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRR5028-270Y be used as a direct replacement for the Würth Elektronik 744053270?

A: Yes. Both components share identical inductance (27 µH), current rating (1.05 A), DC resistance (160 mOhm maximum), physical dimensions (5.80mm × 5.80mm × 3.00mm), and operating temperature range (-40°C to 125°C). Footprint compatibility is confirmed for surface mount PCB assembly.

Q: What are the key differences between these two inductors?

A: The Bourns part exhibits higher saturation current (900 mA versus 800 mA) and higher self-resonant frequency (17 MHz versus 15 MHz). These differences represent performance enhancements that do not affect substitution eligibility.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the Würth Elektronik 744053270 and Bourns SRR5028-270Y carry full RoHS3 compliance certification and are REACH unaffected.

Q: What is the moisture sensitivity level for these inductors?

A: Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can these inductors be used in high-frequency applications?

A: Yes. Both components support operation at frequencies up to their respective self-resonant frequencies (15 MHz for Würth, 17 MHz for Bourns). The Bourns part provides extended high-frequency capability.

Q: Are there any package or footprint differences?

A: No. Both inductors use identical surface mount package dimensions of 5.80mm length × 5.80mm width × 3.00mm maximum height, ensuring direct PCB compatibility.