VB20150C-M3/4W Equivalent & Substitute Parts

Part Overview

The VB20150C-M3/4W is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division, configured as a 1 Pair Common Cathode arrangement in a TO-263-3 (D2PAK) surface mount package. This component is rated for 150 V DC reverse voltage with 10 A average rectified current per diode and is part of the TMBS® series. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the original component, ensuring functional compatibility in circuit applications requiring Schottky diode array functionality with common cathode configuration in D2PAK packaging.

Substiute Parts

VB20150C-M3/4W

Vishay General Semiconductor - Diodes DivisionIn Stock: 1166VB20150C-M3/4W Datasheet

Current PartRFQ

STPS16170CG-TR

STMicroelectronicsIn Stock: 2918STPS16170CG-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VB20150C-M3/4W are identified based on the following substitution criteria:

Mandatory Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Mounting Type: Surface Mount
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Parameter Variations:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 150 V
• Current - Average Rectified (Io) (per Diode): Equal to or greater than 10 A
• Voltage - Forward (Vf) (Max) @ If: Equal to or lower than 1.2 V @ 10 A
• Operating Temperature - Junction (Max): Equal to or greater than 150°C
• RoHS Status: ROHS3 Compliant or equivalent
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The STPS16170CG-TR meets these substitution criteria with enhanced voltage rating (170 V) and improved reverse leakage characteristics, while maintaining the same package footprint and configuration.

Parameter Comparison

Engineering Selection Recommendations

The STPS16170CG-TR from STMicroelectronics is a qualified substitute for the VB20150C-M3/4W based on the following engineering criteria:

Package and Configuration Compatibility: Both components utilize identical TO-263-3 (D2PAK) surface mount packaging with 2 leads plus tab configuration, ensuring direct PCB footprint compatibility without layout modifications.

Electrical Performance: The STPS16170CG-TR provides enhanced voltage rating at 170 V compared to the 150 V specification of the original part, offering additional design margin in applications with voltage transients or tolerance stack-up considerations. The substitute maintains fast recovery Schottky technology with identical switching speed characteristics (≤ 500ns, > 200mA).

Compliance and Certification: Both components maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring compatibility with modern manufacturing processes and storage requirements. Both components carry Active product status with full regulatory compliance.

Current Rating Consideration: The STPS16170CG-TR is rated for 8 A average rectified current per diode, compared to 10 A for the original part. Applications requiring the full 10 A per diode rating must retain the VB20150C-M3/4W or identify alternative substitutes with matching or higher current specifications.

Thermal Performance: The STPS16170CG-TR supports maximum junction temperature of 175°C, exceeding the 150°C maximum of the original component, providing improved thermal margin in high-temperature operating environments.

Frequently Asked Questions (FAQ)

Q: Can the STPS16170CG-TR directly replace the VB20150C-M3/4W in all applications?

A: Direct replacement is possible for applications where the current requirement does not exceed 8 A per diode. The STPS16170CG-TR provides superior voltage rating (170 V vs. 150 V) and thermal performance (175°C vs. 150°C maximum junction temperature). Applications requiring the full 10 A per diode rating of the original part require alternative substitutes or retention of the VB20150C-M3/4W.

Q: Are there PCB layout changes required when substituting the STPS16170CG-TR?

A: No PCB layout changes are required. Both components use identical TO-263-3 (D2PAK) surface mount packaging with matching lead configurations and thermal tab placement. The components are pin-compatible and footprint-compatible.

Q: What is the difference in forward voltage drop between these components?

A: The VB20150C-M3/4W specifies 1.2 V maximum forward voltage at 10 A. The STPS16170CG-TR specifies 920 mV maximum forward voltage at 8 A. At the STPS16170CG-TR rated current of 8 A, the forward voltage drop is lower, resulting in reduced power dissipation in the substitute component.

Q: Do both components have the same moisture sensitivity requirements?

A: Yes. Both the VB20150C-M3/4W and STPS16170CG-TR carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions. Both components can be stored and handled using standard industrial practices without special moisture control measures.

Q: What is the primary advantage of the STPS16170CG-TR over the original part?

A: The STPS16170CG-TR provides higher voltage rating (170 V vs. 150 V), lower reverse leakage current (15 µA @ 170 V vs. 150 µA @ 150 V), and higher maximum junction temperature (175°C vs. 150°C). These characteristics make the substitute suitable for applications requiring enhanced voltage margin and improved thermal performance.

Q: Are there any applications where the VB20150C-M3/4W cannot be substituted?

A: Applications requiring continuous operation at or above 10 A per diode cannot use the STPS16170CG-TR, as it is rated for 8 A maximum average rectified current per diode. In such cases, alternative substitutes with 10 A or higher current ratings must be identified.

Q: Do both components support the same operating temperature range?

A: The VB20150C-M3/4W operates from -55°C to 150°C junction temperature. The STPS16170CG-TR supports operation to 175°C maximum junction temperature. The STPS16170CG-TR provides extended high-temperature capability, making it suitable for applications in elevated ambient or high-power dissipation environments.