Würth Elektronik 744772152 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744772152 is a 1.5 mH unshielded drum core wirewound inductor rated for 300 mA with a maximum DC resistance of 3 Ohm. This through-hole component operates across a temperature range of -40°C to 125°C and is designed for applications requiring fixed inductance in radial, vertical cylinder configurations. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent inductance values, core materials, mounting types, and package configurations align with the original specification while maintaining functional compatibility within acceptable parameter tolerances.

Substiute Parts

744772152

Würth ElektronikIn Stock: 1183744772152 Datasheet

Current PartRFQ

RL895-152K-RC

Bourns Inc.In Stock: 1788RL895-152K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Würth Elektronik 744772152 is determined by the following critical parameters:

• Inductance value of 1.5 mH (primary functional requirement)
• Ferrite drum core construction (core material specification)
• Unshielded configuration (electromagnetic isolation requirement)
• Through-hole radial mounting with vertical cylinder package (mechanical compatibility)
• Operating temperature range capability (thermal environment compatibility)
• RoHS3 compliance and REACH unaffected status (regulatory requirement)

The Bourns Inc. RL895-152K-RC meets these core substitution criteria. While the current rating (230 mA) is lower than the original part (300 mA) and the DC resistance (2.8 Ohm) is slightly lower than the maximum specification (3 Ohm), the inductance value, core material, shielding configuration, mounting type, and package form factor are equivalent. The operating temperature range of -30°C to 100°C is narrower than the original specification.

Parameter Comparison

Engineering Selection Recommendations

Both the Würth Elektronik 744772152 and Bourns Inc. RL895-152K-RC are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts depends on application-specific current requirements and operating temperature constraints. The Würth Elektronik part supports higher current ratings (300 mA versus 230 mA) and operates across a wider temperature range (-40°C to 125°C versus -30°C to 100°C). The Bourns part offers lower DC resistance (2.8 Ohm maximum) and slightly reduced physical height (9.50mm versus 10.00mm). Both components share identical inductance values, core materials, shielding configurations, and mounting types, ensuring functional equivalence in circuits where current and temperature specifications of the Bourns part are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the Bourns RL895-152K-RC be used as a direct replacement for the Würth Elektronik 744772152?

A: The Bourns part is functionally equivalent for inductance and core characteristics. However, the lower current rating (230 mA versus 300 mA) and narrower operating temperature range (-30°C to 100°C versus -40°C to 125°C) must be evaluated against circuit requirements. Physical dimensions are compatible, with the Bourns part being 0.5mm shorter in seated height.

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

A: The primary differences are current rating, DC resistance tolerance, operating temperature range, and inductance tolerance. The Würth part offers higher current capacity and wider temperature operation. The Bourns part has lower maximum DC resistance and tighter physical height. Both maintain the same 1.5 mH inductance value and ferrite drum core construction.

Q: Are both parts RoHS and REACH compliant?

A: Yes, both the Würth Elektronik 744772152 and Bourns Inc. RL895-152K-RC are ROHS3 compliant and REACH unaffected.

Q: Do these parts have identical physical footprints?

A: Both parts share the same radial diameter (0.307" / 7.80mm) and vertical cylinder package configuration. The seated height differs by 0.5mm (Würth: 10.00mm, Bourns: 9.50mm), which is typically acceptable for through-hole PCB layouts.

Q: What is the inductance tolerance difference between these parts?

A: The Würth Elektronik 744772152 has ±5% tolerance, while the Bourns RL895-152K-RC has ±10% tolerance. Applications requiring tighter inductance accuracy should prioritize the Würth part.