Würth Elektronik 744765210A Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 744765210A is a 100 nH unshielded drum core wirewound inductor rated for 100 mA continuous current with a maximum DC resistance of 2.52Ohm. This surface mount component in 0402 (1005 Metric) package is designed for high-frequency applications up to 1.3 GHz self-resonant frequency. The part is active in production with AEC-Q200 automotive qualification and full RoHS3 compliance. Equivalent substitute parts are identified to support procurement flexibility, extended lead times, or inventory optimization while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Inductance	100 nH
Tolerance	±5%
Current Rating	100 mA
DC Resistance (Max)	2.52Ohm
Package / Case	0402 (1005 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the Würth Elektronik 744765210A is determined by strict equivalence across the following critical parameters:

Inductance Value: 100 nH with ±5% tolerance
Package / Case: 0402 (1005 Metric) surface mount form factor
DC Resistance: 2.52Ohm maximum
Current Rating: Minimum 100 mA (higher ratings are acceptable)
Operating Temperature Range: Must support -40°C ~ 125°C minimum
RoHS Compliance: ROHS3 Compliant
Moisture Sensitivity: MSL 1 (Unlimited)

The Murata Electronics LQW15ANR10J00D meets all substitution criteria with identical inductance, tolerance, DC resistance, package dimensions, and compliance certifications. The substitute part provides a higher current rating of 120 mA, which is compatible with the original design specification.

Parameter Comparison

Parameter	Würth Elektronik 744765210A	Murata Electronics LQW15ANR10J00D
Manufacturer	Würth Elektronik	Murata Electronics
Inductance	100 nH	100 nH
Tolerance	±5%	±5%
Current Rating (Amps)	100 mA	120 mA
DC Resistance (Max)	2.52Ohm	2.52Ohm
Q @ Freq	20 @ 150MHz	20 @ 150MHz
Frequency - Self Resonant	1.3GHz	1.5GHz
Operating Temperature	-40°C ~ 125°C	-55°C ~ 125°C
Package / Case	0402 (1005 Metric)	0402 (1005 Metric)
Size / Dimension	0.039" L x 0.022" W (1.00mm x 0.55mm)	0.039" L x 0.020" W (1.00mm x 0.50mm)
Height - Seated (Max)	0.024" (0.60mm)	0.024" (0.60mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active

Engineering Selection Recommendations

Both the Würth Elektronik 744765210A and Murata Electronics LQW15ANR10J00D are active production components with full RoHS3 compliance and MSL 1 moisture sensitivity ratings. The Würth part carries AEC-Q200 automotive qualification. The Murata substitute provides equivalent electrical performance with a 20 mA higher current rating and extended lower temperature operating range (-55°C vs -40°C minimum). Both components meet the specified inductance, tolerance, DC resistance, and package requirements for direct substitution in 0402 surface mount applications. Selection between these parts should be based on availability, lead time, and specific application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can the Murata LQW15ANR10J00D be used as a direct replacement for the Würth 744765210A?

A: Yes. Both parts share identical inductance (100 nH), tolerance (±5%), DC resistance (2.52Ohm max), package (0402 / 1005 Metric), and compliance certifications (ROHS3, MSL 1). The Murata part has a higher current rating (120 mA vs 100 mA) and extended lower temperature range, making it functionally compatible.

Q: Are there any dimensional differences between these parts?

A: Both parts have identical height (0.024" / 0.60mm maximum) and length (0.039" / 1.00mm). The width differs slightly: Würth is 0.022" (0.55mm) and Murata is 0.020" (0.50mm). This minor difference does not affect PCB layout or assembly compatibility for 0402 package specifications.

Q: What is the significance of the different self-resonant frequencies?

A: The Würth part has a self-resonant frequency of 1.3 GHz while the Murata part is 1.5 GHz. Both values are provided as reference parameters. The Q factor at 150 MHz is identical (20) for both parts, indicating equivalent performance in typical RF and high-frequency applications.

Q: Does the Murata part have automotive qualification?

A: The Murata LQW15ANR10J00D does not list AEC-Q200 qualification in the provided specifications. If automotive qualification is a mandatory requirement, the Würth 744765210A should be selected.

Q: What packaging formats are available for each part?

A: The Würth 744765210A is supplied in Tape & Reel (TR) format. The Murata LQW15ANR10J00D is available in Cut Tape (CT) and Digi-Reel® format. Confirm packaging requirements with your procurement process before ordering.

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