TE Connectivity 3-2176086-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3-2176086-4 is a 26 nH unshielded wirewound inductor rated for 450 mA continuous current with a maximum DC resistance of 275 mOhm. This component is designed for high-frequency applications with a self-resonant frequency of 3.15 GHz and operates across the temperature range of -40°C to 125°C. The part is classified as obsolete, making identification of suitable equivalent components necessary for ongoing design support and procurement continuity.

Substiute Parts

3-2176086-4

TE Connectivity Passive ProductIn Stock: 6983-2176086-4 Datasheet

Current PartRFQ

MLG1005S27NJT000

TDK CorporationIn Stock: 2195MLG1005S27NJT000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 3-2176086-4 is determined by the following critical parameters:

Inductance Value: The main part specifies 26 nH with ±5% tolerance. Substitute parts must fall within the acceptable inductance range of 24.7 nH to 27.3 nH.

Current Rating: The main part is rated for 450 mA. Substitute parts must support the required current without saturation or thermal degradation.

DC Resistance: Maximum DC resistance of 275 mOhm establishes the upper limit for acceptable resistive losses in the substitute component.

Shielding Configuration: The main part is unshielded. Substitute parts must maintain the same shielding classification to preserve electromagnetic compatibility characteristics.

Operating Temperature Range: The main part operates from -40°C to 125°C. Substitute parts must support this full temperature envelope.

Mounting Type: Surface mount configuration is required for mechanical and electrical compatibility.

Compliance Standards: RoHS3 compliance is mandatory for regulatory and procurement alignment.

The TDK Corporation MLG1005S27NJT000 meets these substitution criteria within the specified parameter tolerances.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TE Connectivity 3-2176086-4 is classified as obsolete. The TDK MLG1005S27NJT000 is active and available in production quantities (2100 pcs in stock), providing supply chain continuity for new designs and ongoing production support.

Compliance Alignment: Both components are ROHS3 compliant and carry identical moisture sensitivity ratings (MSL 1), ensuring regulatory and environmental compatibility.

Parameter Trade-offs: The TDK substitute exhibits three notable deviations from the original specification:

1. Current Rating: The substitute is rated for 300 mA versus the original 450 mA. Applications requiring the full 450 mA rating cannot use this substitute without thermal analysis and potential performance degradation.

2. DC Resistance: The substitute exhibits 800 mOhm maximum DC resistance compared to 275 mOhm in the original. This 2.9× increase in resistive losses will generate additional heat and reduce circuit efficiency in current-sensitive applications.

3. Self-Resonant Frequency: The substitute operates at 1.6 GHz versus 3.15 GHz for the original. High-frequency applications operating near or above 1.6 GHz will experience reduced inductor performance and altered impedance characteristics.

Package Consideration: The original part uses a nonstandard package, while the substitute uses the standard 0402 (1005 Metric) form factor. PCB layout modifications are required for mechanical compatibility.

Selection of the TDK substitute is appropriate for applications where current requirements do not exceed 300 mA, resistive losses are not critical, and operating frequencies remain below 1.6 GHz.

Frequently Asked Questions (FAQ)

Q: Can the TDK MLG1005S27NJT000 directly replace the TE Connectivity 3-2176086-4 in all applications?

A: No. The substitute part has lower current rating (300 mA vs. 450 mA), higher DC resistance (800 mOhm vs. 275 mOhm), and lower self-resonant frequency (1.6 GHz vs. 3.15 GHz). Applications must be evaluated against these specific parameter differences before substitution.

Q: What is the inductance value difference between these parts?

A: The TE Connectivity part is 26 nH and the TDK part is 27 nH. This 1 nH difference falls within the ±5% tolerance specification for both components and is acceptable for most circuit applications.

Q: Are there physical compatibility issues between these parts?

A: Yes. The original part uses a nonstandard package while the substitute uses the standard 0402 (1005 Metric) package. PCB footprint and placement modifications are required. The substitute is physically smaller (1.00mm × 0.50mm vs. 1.15mm × 0.70mm).

Q: Which applications are suitable for the TDK substitute?

A: The TDK substitute is suitable for applications where: (1) continuous current does not exceed 300 mA, (2) resistive losses of 800 mOhm are acceptable, (3) operating frequency remains below 1.6 GHz, and (4) the standard 0402 package footprint can be accommodated in the PCB design.

Q: What is the impact of higher DC resistance on circuit performance?

A: Higher DC resistance increases power dissipation and heat generation proportional to I²R losses. In a 300 mA application, the TDK substitute dissipates 72 mW compared to 24.75 mW for the original part at the same current level. Thermal management and efficiency analysis are required.

Q: Are both parts RoHS compliant?

A: Yes. Both the TE Connectivity 3-2176086-4 and TDK MLG1005S27NJT000 are ROHS3 compliant and carry identical moisture sensitivity ratings (MSL 1).

Q: What is the frequency limitation of the TDK substitute?

A: The TDK substitute has a self-resonant frequency of 1.6 GHz. Above this frequency, the inductor transitions from inductive to capacitive behavior. Applications operating at or near 3.15 GHz (the original part's self-resonant frequency) cannot use this substitute without performance degradation.