SP3014-02UTG Equivalent & Substitute Parts

Part Overview

The SP3014-02UTG is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for power line protection applications. This steering-type TVS diode features a 5V reverse standoff voltage and 6.8V clamping voltage, housed in a 6-µDFN surface mount package. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement.

Substiute Parts

SP3014-02UTG

Littelfuse Inc.In Stock: 8323SP3014-02UTG Datasheet

Current PartRFQ

SP3400-02UTG

Littelfuse Inc.In Stock: 9826SP3400-02UTG Datasheet

MFR RecommendedRFQ

SP3401-02UTG

Littelfuse Inc.In Stock: 55139SP3401-02UTG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP3014-02UTG is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 6-µDFN (1.6x1) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Electrical Characteristics: Substitute parts must maintain the same reverse standoff voltage range (5V Max) and support the same peak pulse current specification (8A at 8/20µs). The clamping voltage may vary within acceptable limits for the application, provided the part remains suitable for power line protection.

Channel Configuration: All parts must feature 2 unidirectional channels to match the steering diode topology of the original component.

Environmental & Compliance Requirements: Substitute parts must meet automotive-grade specifications and maintain RoHS3 compliance. AEC-Q101 qualification is required to ensure reliability in automotive applications.

Product Status Consideration: Active product status is preferred for long-term availability and supply chain stability, particularly given the obsolete status of the original part.

Parameter Comparison

Engineering Selection Recommendations

SP3400-02UTG: This part maintains active product status and shares identical reverse standoff voltage (5V Max), peak pulse current (8A), and package specifications with the SP3014-02UTG. Both components are automotive-grade and RoHS3 compliant. The higher clamping voltage (16V vs. 6.8V) represents a design trade-off that may require circuit validation depending on application requirements. This substitute is suitable for applications where the increased clamping voltage is acceptable.

SP3401-02UTG: This part is active and automotive-qualified with AEC-Q101 certification. However, the reverse standoff voltage is reduced to 3.3V (Max), which differs from the original 5V specification. The clamping voltage is 9V, and peak pulse current is increased to 10A. This part is specified for Ethernet and USB 3.1 applications rather than general power line protection. Selection of this substitute requires confirmation that the lower standoff voltage is compatible with the target circuit design.

Both substitute parts are manufactured by Littelfuse Inc. and share the same 6-µDFN (1.6x1) package footprint, ensuring mechanical compatibility with existing PCB designs. Active product status provides superior long-term availability compared to the obsolete SP3014-02UTG.

Frequently Asked Questions (FAQ)

Q: Can SP3400-02UTG directly replace SP3014-02UTG in all applications?

A: SP3400-02UTG shares the same reverse standoff voltage, peak pulse current rating, and package as SP3014-02UTG. The primary difference is the higher clamping voltage (16V vs. 6.8V). Direct substitution is possible if the circuit design tolerates the increased clamping voltage. Circuit validation is necessary to confirm compatibility with specific application requirements.

Q: What is the key difference between SP3401-02UTG and the original SP3014-02UTG?

A: SP3401-02UTG has a lower reverse standoff voltage (3.3V vs. 5V) and is specified for Ethernet and USB 3.1 applications. The clamping voltage is 9V with a higher peak pulse current of 10A. This part is not suitable as a direct replacement for general power line protection applications requiring 5V standoff voltage.

Q: Are all substitute parts automotive-qualified?

A: SP3014-02UTG and SP3401-02UTG both carry AEC-Q101 qualification. SP3400-02UTG is automotive-grade but does not list AEC-Q101 qualification in the provided specifications. For applications requiring AEC-Q101 certification, SP3401-02UTG is the qualified alternative.

Q: Do the substitute parts use the same package as the original?

A: Yes. All three parts use the 6-µDFN (1.6x1) surface mount package, ensuring identical PCB footprint compatibility and mechanical interchangeability.

Q: What is the availability status of substitute parts?

A: Both SP3400-02UTG and SP3401-02UTG are active products with current inventory availability. The original SP3014-02UTG is obsolete, making these active substitutes necessary for ongoing procurement and design support.