STPS20170CG Equivalent & Substitute Parts

Part Overview

The STPS20170CG is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common cathode with a maximum reverse voltage rating of 170 V and average rectified current of 10 A per diode. The device is packaged in TO-263-3 (D2PAK) surface mount configuration with fast recovery characteristics suitable for high-frequency rectification applications.

The STPS20170CG is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure availability for new production builds and field replacements where the original component is no longer readily procurable from primary sources.

Substiute Parts

STPS20170CG

STMicroelectronicsIn Stock: 2012STPS20170CG Datasheet

Current PartRFQ

STPS16170CG-TR

STMicroelectronicsIn Stock: 2918STPS16170CG-TR Datasheet

SimilarRFQ

VB60170G-E3/4W

Vishay General Semiconductor - Diodes DivisionIn Stock: 9188VB60170G-E3/4W Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS20170CG is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 170 V
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
• Mounting Type: Surface Mount
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variation Parameters:

• Current - Average Rectified (Io) (per Diode): Equal or greater than 10 A
• Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
• Current - Reverse Leakage @ Vr: Within acceptable operating range
• Operating Temperature - Junction: Equal to or greater than 175°C maximum

Substitute parts must maintain identical mechanical and electrical interface characteristics to ensure direct replacement capability without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

STPS16170CG-TR (STMicroelectronics)

The STPS16170CG-TR is an active product from the same manufacturer as the obsolete STPS20170CG. This part maintains identical mechanical interface and electrical characteristics across all critical parameters including reverse voltage rating, package configuration, and fast recovery speed. The primary difference is reduced average rectified current per diode (8 A versus 10 A). This part is suitable for applications where the circuit current requirement does not exceed 8 A per diode. The active product status ensures long-term availability and supply chain continuity. ROHS3 compliance and MSL 1 rating match the original specification.

VB60170G-E3/4W (Vishay General Semiconductor - Diodes Division)

The VB60170G-E3/4W is an active product from Vishay that maintains identical mechanical interface and core electrical characteristics including reverse voltage rating, package configuration, and fast recovery speed. This part provides increased average rectified current per diode (30 A versus 10 A), making it suitable for applications requiring higher current capacity. The higher forward voltage drop (1.02 V @ 30 A) and increased reverse leakage current (450 µA @ 170 V) must be evaluated against circuit thermal and power dissipation requirements. The active product status and ROHS3 compliance ensure availability and regulatory compliance. This part is classified within the TMBS® series.

Both substitute parts are active products with established supply availability, providing superior long-term procurement reliability compared to the obsolete STPS20170CG.

Frequently Asked Questions (FAQ)

Q: Can the STPS16170CG-TR be used as a direct replacement for the STPS20170CG?

A: The STPS16170CG-TR is mechanically and electrically compatible with the STPS20170CG for direct PCB placement. However, the reduced current rating (8 A versus 10 A per diode) requires circuit analysis to confirm the application does not exceed this current limit. If the circuit operates at or below 8 A per diode, direct substitution is valid.

Q: Can the VB60170G-E3/4W be used as a direct replacement for the STPS20170CG?

A: The VB60170G-E3/4W is mechanically compatible with the STPS20170CG for direct PCB placement. The higher current rating (30 A versus 10 A per diode) provides design margin. However, the increased forward voltage drop and reverse leakage current must be evaluated for thermal and power dissipation impact on the circuit. Direct substitution is valid from a mechanical and interface perspective, subject to circuit performance verification.

Q: What is the significance of the TO-263-3 D2PAK package compatibility?

A: All three parts share identical TO-263-3 D2PAK package configuration with 2 leads plus tab. This ensures mechanical compatibility with existing PCB layouts, solder pad patterns, and thermal management designs without modification.

Q: Why does the STPS20170CG have obsolete product status?

A: Obsolete status indicates the manufacturer has discontinued production and support for this part. Active substitute parts are necessary to ensure continued availability for new production and field service applications.

Q: Are all three parts RoHS3 compliant?

A: Yes. The STPS20170CG, STPS16170CG-TR, and VB60170G-E3/4W are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory compliance and handling compatibility.

Q: What is the difference between the packaging types listed for these parts?

A: The STPS20170CG is supplied in bulk packaging. The STPS16170CG-TR is supplied in Tape & Reel (TR) format for automated assembly. The VB60170G-E3/4W is supplied in Tube packaging. These packaging differences do not affect electrical or mechanical performance; they reflect different distribution and assembly methods.

Q: How do the reverse leakage current specifications compare?

A: The STPS20170CG and STPS16170CG-TR both specify 15 µA @ 170 V reverse leakage. The VB60170G-E3/4W specifies 450 µA @ 170 V, which is significantly higher. Applications sensitive to leakage current should prioritize the STMicroelectronics options.