STTH3L06B-TR Equivalent & Substitute Parts

Part Overview

The STTH3L06B-TR is a general-purpose rectifier diode manufactured by STMicroelectronics, rated for 600 V DC reverse voltage and 3 A average rectified current in a surface mount DPAK package. This component is classified as obsolete, indicating discontinued production and limited availability. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this diode specification.

Substiute Parts

STTH3L06B-TR

STMicroelectronicsIn Stock: 2995STTH3L06B-TR Datasheet

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STTH8R06G-TR

STMicroelectronicsIn Stock: 43424STTH8R06G-TR Datasheet

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VS-6EWX06FNHM3

Vishay General Semiconductor - Diodes DivisionIn Stock: 730VS-6EWX06FNHM3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STTH3L06B-TR are identified based on the following criteria:

Voltage Rating Compatibility: All substitute parts maintain the 600 V DC reverse voltage specification, ensuring equivalent reverse bias protection and circuit safety margins.

Current Rating Consideration: Substitute parts may exceed the 3 A current rating of the main part. Parts with higher current ratings (6 A and 8 A) are electrically compatible for applications requiring the STTH3L06B-TR, as they operate within the same voltage class and maintain fast recovery characteristics.

Fast Recovery Technology: All substitute parts conform to the fast recovery classification (≤ 500ns, > 200mA), ensuring equivalent switching performance and thermal characteristics.

Surface Mount Packaging: Substitute parts utilize surface mount technology with compatible lead configurations (DPAK and D2PAK variants), enabling direct PCB integration without redesign of mounting footprints where package dimensions permit.

Compliance Standards: All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring environmental and moisture handling compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

VS-6EWX06FNHM3 Selection Criteria:

The VS-6EWX06FNHM3 is a direct package equivalent to the STTH3L06B-TR, utilizing the identical TO-252-3 DPAK package footprint. This substitute maintains 600 V voltage rating and provides 6 A current capacity, exceeding the original 3 A specification. The part is manufactured by Vishay General Semiconductor and holds active product status with established supply availability. This diode qualifies for automotive applications under AEC-Q101 standard and maintains ROHS3 compliance. The faster reverse recovery time (19 ns versus 85 ns) provides improved switching performance. Selection of this part requires no PCB layout modifications and is suitable for direct replacement in existing designs.

STTH8R06G-TR Selection Criteria:

The STTH8R06G-TR is manufactured by STMicroelectronics, maintaining design continuity with the original part manufacturer. This substitute provides 8 A current capacity and maintains the 600 V voltage specification. The part holds active product status with high inventory availability (43,400 pieces). The package differs from the original (D2PAK versus DPAK), requiring PCB footprint evaluation and potential layout modification. The reverse recovery time (45 ns) is faster than the original specification. This substitute is appropriate for applications where higher current capacity and improved switching characteristics are beneficial and where package transition is feasible.

Product Status Consideration:

Both substitute parts maintain active product status, ensuring long-term supply chain reliability and continued manufacturing support. The obsolete status of the STTH3L06B-TR necessitates transition to one of these active alternatives for new production and ongoing support.

Frequently Asked Questions (FAQ)

Q: Can the VS-6EWX06FNHM3 directly replace the STTH3L06B-TR without PCB modifications?

A: Yes. The VS-6EWX06FNHM3 utilizes the identical TO-252-3 DPAK package as the STTH3L06B-TR, enabling direct footprint compatibility. No PCB layout changes are required for this substitution.

Q: What is the primary difference between the VS-6EWX06FNHM3 and STTH8R06G-TR substitutes?

A: The VS-6EWX06FNHM3 maintains the original DPAK package, while the STTH8R06G-TR uses a D2PAK package. The STTH8R06G-TR provides higher current capacity (8 A) and faster reverse recovery (45 ns). Package selection depends on PCB design constraints and thermal management requirements.

Q: Are both substitute parts compliant with the same environmental standards as the original?

A: Yes. Both VS-6EWX06FNHM3 and STTH8R06G-TR maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status, matching the environmental specifications of the STTH3L06B-TR.

Q: Does the higher current rating of substitute parts affect circuit operation?

A: No. Higher current ratings indicate increased capacity without affecting operation at the original 3 A specification. The 600 V voltage rating remains constant across all parts, ensuring equivalent reverse bias protection and circuit safety.

Q: What is the significance of reverse recovery time differences between the parts?

A: Reverse recovery time (trr) affects switching speed and thermal performance. The VS-6EWX06FNHM3 (19 ns) and STTH8R06G-TR (45 ns) both provide faster recovery than the original STTH3L06B-TR (85 ns), resulting in improved switching efficiency and reduced power dissipation.

Q: Is the VS-6EWX06FNHM3 suitable for automotive applications?

A: Yes. The VS-6EWX06FNHM3 qualifies for automotive use under AEC-Q101 standard, making it appropriate for automotive-grade circuit designs.

Q: What packaging consideration applies to the STTH8R06G-TR?

A: The STTH8R06G-TR uses D2PAK packaging, which differs from the original DPAK. PCB footprint compatibility must be evaluated before selection. D2PAK provides enhanced thermal dissipation compared to DPAK, beneficial for higher current applications.