L-07C40NJV4T Equivalent & Substitute Parts

Part Overview

The L-07C40NJV4T is a 40 nH unshielded multilayer ceramic inductor manufactured by Johanson Technology Inc. in 0402 (1005 Metric) surface mount package. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement continuity. The part operates across the temperature range of -55°C to 100°C and meets ROHS3 compliance requirements.

Substiute Parts

L-07C40NJV4T

Johanson Technology Inc.In Stock: 817L-07C40NJV4T Datasheet

Current PartRFQ

744765140A

Würth ElektronikIn Stock: 3805744765140A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L-07C40NJV4T is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 40 nH (exact match required)
• Inductance tolerance: ±5% (matching tolerance specification)
• Package / Case: 0402 (1005 Metric) (identical footprint and mounting)
• Mounting Type: Surface Mount (same assembly method)
• Shielding: Unshielded (same electromagnetic configuration)

Secondary Compatibility Factors:

• Operating temperature range must encompass or exceed the original specification (-55°C ~ 100°C)
• RoHS3 compliance status (regulatory requirement)
• Moisture Sensitivity Level 1 (handling and storage compatibility)

The substitute part 744765140A from Würth Elektronik meets all primary matching criteria and exceeds secondary compatibility requirements through extended temperature range (-40°C ~ 125°C) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 744765140A from Würth Elektronik is a direct functional substitute for the L-07C40NJV4T. Both components share identical inductance values, tolerance specifications, and package footprints. The substitute part offers the following advantages:

Compliance & Availability:

• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance maintained for regulatory requirements
• AEC-Q200 automotive qualification rating provides additional reliability assurance

Thermal Performance:

• Extended operating temperature range (-40°C ~ 125°C) encompasses the original specification (-55°C ~ 100°C) with upper temperature margin
• Lower temperature limit (-40°C) is suitable for most commercial and industrial applications

Physical Compatibility:

• Identical mounting footprint and height ensure direct PCB layout compatibility
• Minimal dimensional variation (0.022" width versus 0.020" width) remains within standard 0402 package tolerances

The substitute part is suitable for direct replacement in new designs and legacy system support applications.

Frequently Asked Questions (FAQ)

Q: Can the 744765140A be used as a direct replacement for the L-07C40NJV4T on existing PCBs?

A: Yes. Both components use the 0402 (1005 Metric) package with identical mounting footprints and maximum seated heights of 0.024" (0.60mm). No PCB layout modifications are required.

Q: Are there any electrical performance differences between these parts?

A: Both parts meet the 40 nH inductance specification with ±5% tolerance. The substitute part provides additional electrical characterization data (Q factor, self-resonant frequency, current rating, and DCR specifications) that may be beneficial for circuit analysis, though these parameters are not required for basic substitution compatibility.

Q: What is the significance of the operating temperature range difference?

A: The L-07C40NJV4T operates from -55°C to 100°C, while the 744765140A operates from -40°C to 125°C. For applications requiring operation below -40°C, the original part specification must be maintained. For all other applications within the -40°C to 100°C range, the substitute part is fully compatible.

Q: Does the substitute part meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. The substitute part additionally carries AEC-Q200 automotive qualification, which exceeds the original part's compliance profile.

Q: What is the difference between multilayer and drum core wirewound construction?

A: The L-07C40NJV4T uses multilayer ceramic construction, while the 744765140A uses drum core wirewound construction. Both achieve the same 40 nH inductance value and unshielded configuration. The construction difference does not affect substitution compatibility for applications where inductance value and tolerance are the primary selection criteria.

Q: Is the packaging format different between these parts?

A: The L-07C40NJV4T is supplied in standard packaging, while the 744765140A is supplied in Tape & Reel (TR) format. This affects procurement and handling procedures but does not impact electrical or mechanical compatibility.