STTH15L06G Equivalent & Substitute Parts

Part Overview

The STTH15L06G is a general-purpose rectifier diode manufactured by STMicroelectronics, rated for 600 V DC reverse voltage and 20 A average rectified current in a D2PAK surface mount package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within acceptable parameter tolerances for the same application category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	20	A
Voltage - Forward (Vf) (Max) @ If	1.55 V @ 15 A	V
Reverse Recovery Time (trr)	85	ns
Current - Reverse Leakage @ Vr	15	µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Surface Mount	—
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	—
Operating Temperature - Junction (Max)	175	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the STTH15L06G is determined by the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 600 V
Current - Average Rectified (Io): Must equal or exceed 20 A
Voltage - Forward (Vf) (Max) @ If: Must not exceed specified forward voltage at rated current
Reverse Recovery Time (trr): Must support fast recovery classification (≤ 500ns, > 200mA)
Current - Reverse Leakage @ Vr: Must not exceed specified leakage at rated reverse voltage

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount (required)
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB (required)

Compliance Criteria:

RoHS Status: ROHS3 Compliant (required)
Moisture Sensitivity Level (MSL): 1 (Unlimited) (required)

Substitute parts are grouped into two categories: direct equivalents (identical specifications) and functional substitutes (equivalent performance within application tolerance). Parts that differ in current rating, forward voltage characteristics, or reverse recovery time are classified as functional substitutes and require application-level verification of suitability.

Parameter Comparison

Parameter	STTH15L06G	STTH15L06G-TR	SDURB2060	SDURB2060CT	VS-ETL1506STRLHM3	VS-ETX1506S-M3
Manufacturer	STMicroelectronics	STMicroelectronics	SMC Diode Solutions	SMC Diode Solutions	Vishay General Semiconductor	Vishay General Semiconductor
Product Status	Obsolete	Active	Active	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	20 A	20 A	20 A	—	15 A	15 A
Voltage - Forward (Vf) (Max) @ If	1.55 V @ 15 A	1.55 V @ 15 A	2 V @ 20 A	2.2 V @ 10 A	1.07 V @ 15 A	3.4 V @ 15 A
Reverse Recovery Time (trr)	85 ns	85 ns	50 ns	50 ns	210 ns	20 ns
Current - Reverse Leakage @ Vr	15 µA @ 600 V	15 µA @ 600 V	5 µA @ 600 V	10 µA @ 600 V	15 µA @ 600 V	36 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Operating Temperature - Junction (Max)	175°C	175°C	150°C	150°C	175°C	175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

STTH15L06G-TR is the direct equivalent replacement for the obsolete STTH15L06G. This part maintains identical electrical specifications (600 V, 20 A, 1.55 V forward voltage @ 15 A, 85 ns reverse recovery time) and mechanical compatibility (D2PAK package). The primary distinction is product status: STTH15L06G-TR is active and available in Cut Tape and Digi-Reel packaging, ensuring procurement continuity. Both parts are STMicroelectronics products with ROHS3 compliance and MSL 1 rating. This substitution requires no circuit redesign or thermal management recalculation.

Functional Substitutes (Current Rating Reduction):

VS-ETL1506STRLHM3 and VS-ETX1506S-M3 are Vishay General Semiconductor alternatives with reduced current rating (15 A versus 20 A). These parts maintain 600 V reverse voltage and D2PAK packaging but operate at lower average rectified current. VS-ETL1506STRLHM3 offers superior forward voltage characteristics (1.07 V @ 15 A) and extended reverse recovery time (210 ns), with automotive qualification (AEC-Q101). VS-ETX1506S-M3 features ultrafast reverse recovery (20 ns) but exhibits elevated forward voltage (3.4 V @ 15 A) and reverse leakage (36 µA @ 600 V). These substitutes are suitable only for applications where the 20 A current requirement can be reduced to 15 A or lower.

Functional Substitutes (Current Rating Equivalent):

SDURB2060 and SDURB2060CT are SMC Diode Solutions alternatives maintaining 600 V and 20 A specifications. SDURB2060 provides improved reverse recovery time (50 ns) and reduced reverse leakage (5 µA @ 600 V) but exhibits higher forward voltage (2 V @ 20 A) and lower maximum junction temperature (150°C versus 175°C). SDURB2060CT is a diode array configuration (1 Pair Common Cathode) and is not a direct pin-compatible substitute; this part is suitable only for applications requiring integrated dual-diode functionality.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and MSL 1 rating. STTH15L06G-TR offers the highest inventory availability (3100 pcs) and active product status, making it the preferred procurement choice for design continuity. Vishay parts provide automotive-grade options with extended temperature ranges (-65°C to 175°C). SMC Diode Solutions parts are available with active status but carry REACH Affected designation, requiring supply chain verification for regulated markets.

Frequently Asked Questions (FAQ)

Q: Can STTH15L06G-TR be used as a direct replacement for STTH15L06G?

A: Yes. STTH15L06G-TR is the direct equivalent with identical electrical specifications (600 V, 20 A, 1.55 V @ 15 A, 85 ns trr) and D2PAK packaging. The only difference is product status (active versus obsolete) and packaging format (Cut Tape/Digi-Reel versus bulk). No circuit modifications are required.

Q: Why do VS-ETL1506STRLHM3 and VS-ETX1506S-M3 have lower current ratings?

A: These Vishay parts are rated for 15 A average rectified current, compared to 20 A for the STTH15L06G. They maintain 600 V reverse voltage and D2PAK packaging but are designed for lower current applications. Substitution is valid only if the application current requirement does not exceed 15 A.

Q: What is the difference between SDURB2060 and SDURB2060CT?

A: SDURB2060 is a single general-purpose rectifier diode rated 600 V, 20 A. SDURB2060CT is a diode array with 1 Pair Common Cathode configuration and is not pin-compatible with the STTH15L06G. SDURB2060CT is suitable only for applications requiring integrated dual-diode functionality.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant. However, SDURB2060 and SDURB2060CT carry REACH Affected designation, requiring verification for applications in regulated markets. STTH15L06G-TR, VS-ETL1506STRLHM3, and VS-ETX1506S-M3 are REACH Unaffected.

Q: Which substitute offers the best reverse recovery performance?

A: VS-ETX1506S-M3 provides the fastest reverse recovery time at 20 ns, followed by SDURB2060 and SDURB2060CT at 50 ns. STTH15L06G-TR and VS-ETL1506STRLHM3 operate at 85 ns and 210 ns respectively. Selection depends on application switching frequency requirements and thermal constraints.

Q: Can I use a substitute with lower maximum junction temperature?

A: SDURB2060 and SDURB2060CT are rated to 150°C maximum junction temperature, compared to 175°C for STTH15L06G. Substitution is valid only if the application thermal design ensures junction temperature remains below 150°C under worst-case operating conditions.

Q: Is automotive qualification available in substitute parts?

A: Yes. VS-ETL1506STRLHM3 carries AEC-Q101 automotive qualification with extended temperature range (-65°C to 175°C). This part is suitable for automotive applications requiring qualified components, though current rating is limited to 15 A.

Q: What packaging options are available for the direct equivalent?

A: STTH15L06G-TR is available in Cut Tape (CT) and Digi-Reel packaging formats, suitable for automated assembly. The original STTH15L06G was supplied in bulk packaging. All substitute parts maintain D2PAK (TO-263-3) mechanical compatibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message