744761182C Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744761182C is a 82 nH unshielded drum core wirewound inductor rated for 400 mA with a maximum DC resistance of 580 mOhm. This surface mount component in 0603 (1608 Metric) package is designed for high-frequency applications up to 1.7 GHz self-resonant frequency. The part is active and in production, with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent inductance values, package dimensions, and electrical performance parameters align within acceptable tolerances for the application.

Substiute Parts

744761182C

Würth ElektronikIn Stock: 4084744761182C Datasheet

Current PartRFQ

LQW18AN82NG00D

Murata ElectronicsIn Stock: 9029LQW18AN82NG00D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Murata Electronics LQW18AN82NG00D qualifies as a substitute based on the following alignment criteria:

• Identical inductance value: 82 nH
• Same package classification: 0603 (1608 Metric) surface mount
• Unshielded drum core wirewound construction
• Operating temperature range overlap: -55°C ~ 125°C (encompasses the 744761182C range)
• ROHS3 compliance and REACH unaffected status match
• Moisture sensitivity level 1 (Unlimited) matches

Substitution is valid where the application tolerates the parameter differences listed in the comparison table below. The LQW18AN82NG00D operates at a lower current rating (250 mA vs. 400 mA) and exhibits slightly higher DC resistance (600 mOhm vs. 580 mOhm), which must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain active product status and full ROHS3 compliance with REACH unaffected designation. The 744761182C is the primary component with established supply (4045 pcs in stock). The LQW18AN82NG00D serves as a qualified substitute where circuit design accommodates the reduced current rating of 250 mA. Applications requiring the full 400 mA rating must use the primary part. The LQW18AN82NG00D offers tighter inductance tolerance (±2% vs. ±5%) and higher self-resonant frequency (2.0 GHz vs. 1.7 GHz), which may provide performance advantages in specific high-frequency designs. Both parts are suitable for surface mount assembly in 0603 package footprints.

Frequently Asked Questions (FAQ)

Q: Can the LQW18AN82NG00D replace the 744761182C in all applications?

A: Substitution is valid only where the circuit operates at or below 250 mA. The 744761182C supports 400 mA operation; the substitute is limited to 250 mA. Verify your application's current requirements before substitution.

Q: What is the difference in DC resistance between these parts?

A: The 744761182C has a maximum DC resistance of 580 mOhm, while the LQW18AN82NG00D is rated at 600 mOhm maximum. This 20 mOhm difference may affect power dissipation in high-current applications.

Q: Are the physical dimensions identical?

A: Both parts use the 0603 (1608 Metric) package. The 744761182C measures 0.065" L x 0.045" W with 0.043" seated height. The LQW18AN82NG00D measures 0.063" L x 0.031" W with 0.039" seated height. Verify PCB layout compatibility for your specific design.

Q: What is the inductance tolerance difference?

A: The 744761182C has ±5% tolerance, while the LQW18AN82NG00D offers tighter ±2% tolerance. The substitute provides better inductance accuracy for precision circuit designs.

Q: Do both parts have the same operating temperature range?

A: The 744761182C operates from -40°C to 125°C. The LQW18AN82NG00D operates from -55°C to 125°C, providing extended low-temperature capability.

Q: What packaging formats are available?

A: The 744761182C is supplied in Tape & Reel (TR) format. The LQW18AN82NG00D is available in Cut Tape (CT) and Digi-Reel® formats. Confirm packaging compatibility with your procurement and assembly processes.