Würth Elektronik 744902147 47nH SMD Inductor - Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744902147 is a 47nH unshielded thin film inductor rated for 200mA with a maximum DC resistance of 3Ohm, packaged in 0603 (1608 Metric) surface mount format. This component is classified as obsolete product status. Substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

744902147

Würth ElektronikIn Stock: 748744902147 Datasheet

Current PartRFQ

744761147C

Würth ElektronikIn Stock: 4012744761147C Datasheet

DirectRFQ

744786147A

Würth ElektronikIn Stock: 15332744786147A Datasheet

DirectRFQ

LTF0603GT47N

Stackpole Electronics IncIn Stock: 926LTF0603GT47N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 744902147 are qualified based on the following criteria:

• Identical inductance value: 47 nH
• Identical package format: 0603 (1608 Metric) surface mount
• Unshielded configuration
• Operating temperature range compatibility: -40°C ~ 125°C minimum
• RoHS3 compliance
• MSL rating of 1 (Unlimited)

Substitutes may vary in the following parameters within acceptable engineering tolerances:

• Current rating (minimum 200 mA required)
• DC resistance (component-dependent based on construction type)
• Tolerance specification
• Inductor type (thin film, multilayer, wirewound, drum core)
• Q factor and self-resonant frequency

Parameter Comparison

Engineering Selection Recommendations

Würth Elektronik 744761147C (WE-KI Series)

This substitute provides active product status with higher current capacity (600 mA) and significantly lower DC resistance (230 mOhm Max). The drum core wirewound construction offers improved performance characteristics. Maintains identical operating temperature range and RoHS3 compliance. Suitable for applications requiring enhanced current handling and reduced resistive losses.

Würth Elektronik 744786147A (WE-MK Series)

This substitute provides active product status with AEC-Q200 automotive qualification. The multilayer construction supports 400 mA current rating with extended operating temperature range (-55°C ~ 125°C). RoHS3 compliant with MSL rating 1. Recommended for applications requiring automotive-grade reliability and extended temperature performance.

Stackpole Electronics Inc LTF0603GT47N

This substitute provides active product status with 2% tolerance matching the original specification. Maintains 0603 package format. Limited technical data available; verification of current rating and DC resistance specifications required for application compatibility assessment.

Frequently Asked Questions (FAQ)

Q: Can 744761147C replace 744902147 in all applications?

A: 744761147C qualifies as a substitute based on matching inductance value, package format, and environmental specifications. The higher current rating (600 mA vs 200 mA) and lower DC resistance (230 mOhm vs 3 Ohm) represent performance improvements. Application compatibility depends on circuit design requirements for impedance and current handling characteristics.

Q: What is the primary difference between the substitute options?

A: 744761147C offers the lowest DC resistance (230 mOhm) with highest current capacity (600 mA) using drum core wirewound construction. 744786147A provides automotive qualification (AEC-Q200) with extended temperature range (-55°C ~ 125°C) using multilayer construction. LTF0603GT47N provides 2% tolerance specification matching the original part.

Q: Are all substitutes RoHS3 compliant?

A: Würth Elektronik parts 744761147C and 744786147A are confirmed ROHS3 compliant. RoHS compliance status for Stackpole LTF0603GT47N is not specified in available documentation.

Q: Does package compatibility guarantee mechanical fit?

A: All substitutes use 0603 (1608 Metric) package format. Physical dimensions vary slightly: 744902147 and 744786147A measure 0.063" L x 0.031" W, while 744761147C measures 0.065" L x 0.045" W. Height differences range from 0.022" to 0.043" seated maximum. PCB layout and component placement clearances must be verified for each substitute.

Q: Which substitute is recommended for new designs?

A: Selection depends on application requirements. For standard applications, 744761147C provides superior electrical performance with active status. For automotive applications, 744786147A provides AEC-Q200 qualification and extended temperature range. Stackpole LTF0603GT47N requires complete specification verification before selection.