Equivalent & Substitute Parts for 744765133A

Part Overview

The Würth Elektronik 744765133A is a 33 nH unshielded drum core wirewound inductor rated for 400 mA with a maximum DC resistance of 350 mOhm in 0402 (1005 Metric) surface mount package. This component is classified as Active product status and is designed for high-frequency applications requiring low inductance values with controlled impedance characteristics. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and operating parameters.

Substiute Parts

744765133A

Würth ElektronikIn Stock: 904744765133A Datasheet

Current PartRFQ

36501E33NJTDG

TE Connectivity Passive ProductIn Stock: 247236501E33NJTDG Datasheet

MFR RecommendedRFQ

CW100505-33NJ

Bourns Inc.In Stock: 25489CW100505-33NJ Datasheet

MFR RecommendedRFQ

LQW15AN33NJ00D

Murata ElectronicsIn Stock: 16618LQW15AN33NJ00D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 744765133A is determined by strict equivalence across the following critical parameters:

• Inductance value: 33 nH ±5%
• Package footprint: 0402 (1005 Metric) surface mount
• Current rating: minimum 400 mA
• DC resistance: maximum 350 mOhm
• Shielding configuration: Unshielded
• Operating temperature range: minimum -40°C to 125°C
• RoHS3 compliance and MSL 1 rating

Parts meeting all these criteria are classified as direct substitutes. Parts with deviations in current rating, DC resistance, or operating temperature range are identified with specific limitations.

Parameter Comparison

Engineering Selection Recommendations

36501E33NJTDG (TE Connectivity) and CW100505-33NJ (Bourns) are direct electrical and mechanical equivalents to the 744765133A. Both parts maintain identical inductance, current rating, DC resistance specifications, and package footprint. All three parts are Active status products with ROHS3 compliance and MSL 1 rating.

LQW15AN33NJ00D (Murata) shares the same inductance value, tolerance, package, and compliance ratings. However, this part has a reduced current rating of 260 mA versus the 400 mA specification of the primary part, and elevated DC resistance of 630 mOhm maximum compared to 350 mOhm maximum. Selection of LQW15AN33NJ00D requires confirmation that circuit design accommodates the lower current rating and higher impedance characteristics.

Frequently Asked Questions (FAQ)

Q: Can 36501E33NJTDG replace 744765133A in all applications?

A: Yes. The 36501E33NJTDG maintains identical electrical specifications including 33 nH inductance, 400 mA current rating, 350 mOhm maximum DC resistance, and 0402 package footprint. Both parts are Active status with ROHS3 compliance and MSL 1 rating.

Q: What are the limitations of using LQW15AN33NJ00D as a substitute?

A: The LQW15AN33NJ00D has a current rating of 260 mA, which is 35% lower than the 400 mA rating of 744765133A. Additionally, DC resistance is specified at 630 mOhm maximum, compared to 350 mOhm maximum for the primary part. Use this substitute only when circuit current requirements do not exceed 260 mA and the higher impedance is acceptable.

Q: Are all substitute parts available in the same package?

A: Yes. All listed substitute parts are available in 0402 (1005 Metric) surface mount package with identical footprint dimensions, ensuring direct PCB compatibility.

Q: Do all parts meet the same compliance standards?

A: All parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The primary part and two primary substitutes (36501E33NJTDG and CW100505-33NJ) are rated to -40°C minimum operating temperature. CW100505-33NJ and LQW15AN33NJ00D extend the lower temperature limit to -55°C.

Q: What is the difference in core material between these inductors?

A: The 744765133A, 36501E33NJTDG, and CW100505-33NJ use ceramic core material. The LQW15AN33NJ00D uses non-magnetic core material. Both core types support the specified inductance and frequency characteristics at 0402 package size.