Würth Elektronik 744902168 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744902168 is a 68 nH unshielded thin film inductor rated for 150 mA with a maximum DC resistance of 5 Ohm, packaged in 0603 (1608 Metric) surface mount format. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and production continuity. Substitute parts must maintain the 68 nH inductance specification and 0603 package footprint while accommodating variations in current rating, DC resistance, and core construction type.

Substiute Parts

744902168

Würth ElektronikIn Stock: 1077744902168 Datasheet

Current PartRFQ

744761168C

Würth ElektronikIn Stock: 1206744761168C Datasheet

DirectRFQ

744786168A

Würth ElektronikIn Stock: 7240744786168A Datasheet

DirectRFQ

LTF0603GT68N

Stackpole Electronics IncIn Stock: 1140LTF0603GT68N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 744902168 is determined by the following mandatory parameters: inductance value (68 nH), package format (0603 / 1608 Metric), surface mount mounting type, and unshielded construction. Substitute parts must maintain these core specifications. Secondary parameters including current rating, DC resistance, tolerance, and core material type may vary within acceptable operational limits depending on circuit requirements. The obsolete status of the main part requires selection from active substitute options to ensure supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

744761168C (Würth Elektronik WE-KI Series): This active substitute provides 68 nH inductance in 0603 package with significantly improved current handling (600 mA versus 150 mA) and substantially lower DC resistance (350 mOhm versus 5 Ohm). The drum core wirewound construction and ceramic core material differ from the thin film design of the main part. ROHS3 compliance is maintained. Selection is appropriate for applications requiring higher current capacity and lower resistive losses.

744786168A (Würth Elektronik WE-MK Series): This active substitute maintains 68 nH inductance in 0603 package with moderate current rating (300 mA) and higher DC resistance (850 mOhm). The multilayer ceramic construction differs from thin film design. Extended operating temperature range (-55°C to 125°C) and AEC-Q200 automotive qualification are provided. ROHS3 compliance is maintained. Selection is appropriate for automotive applications and designs requiring extended temperature performance.

LTF0603GT68N (Stackpole Electronics Inc): This active substitute provides 68 nH inductance in 0603 package with ±2% tolerance matching the main part specification. Limited parameter data is provided in the input. Selection requires verification of current rating and DC resistance specifications against circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can 744761168C replace 744902168 in all applications? A: 744761168C maintains the 68 nH inductance and 0603 package but differs in core construction (drum core wirewound versus thin film), current rating (600 mA versus 150 mA), and DC resistance (350 mOhm versus 5 Ohm). Substitution is valid where circuit current requirements do not exceed 600 mA and the lower DC resistance is acceptable or beneficial.

Q: What is the primary difference between 744761168C and 744786168A? A: 744761168C offers higher current capacity (600 mA) with lower DC resistance (350 mOhm) using drum core wirewound construction. 744786168A provides moderate current capacity (300 mA) with higher DC resistance (850 mOhm) using multilayer construction and includes AEC-Q200 automotive qualification with extended temperature range (-55°C to 125°C).

Q: Are all substitutes ROHS3 compliant? A: Würth Elektronik substitutes 744761168C and 744786168A are ROHS3 compliant. Stackpole Electronics LTF0603GT68N compliance status is not specified in the provided data.

Q: Does package footprint compatibility guarantee mechanical fit? A: All listed substitutes use 0603 (1608 Metric) package format with identical footprint. Physical dimensions vary slightly: 744902168 and 744786168A are 0.063" L x 0.031" W, while 744761168C is 0.065" L x 0.045" W. Height differences range from 0.022" to 0.043" seated maximum. PCB layout verification is required for height-constrained applications.

Q: Which substitute is recommended for automotive applications? A: 744786168A includes AEC-Q200 automotive qualification and extended operating temperature range (-55°C to 125°C), making it suitable for automotive circuit requirements.