STPS20170CFP Equivalent & Substitute Parts

Part Overview

The STPS20170CFP is an active Schottky diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode arrangement rated for 170 V DC reverse voltage and 10 A average rectified current per diode. The device is packaged in a TO-220-3 Full Pack through-hole configuration and is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter tolerances.

Substiute Parts

STPS20170CFP

STMicroelectronicsIn Stock: 14509STPS20170CFP Datasheet

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MBRF20200CTG

onsemiIn Stock: 8780MBRF20200CTG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS20170CFP is permissible when the following criteria are met:

Mandatory Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Current - Average Rectified (Io) per Diode: 10 A
• Voltage - Forward (Vf) (Max) @ If: 900 mV @ 10 A
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
• Mounting Type: Through Hole
• Package / Case: TO-220-3 Full Pack
• RoHS Status: ROHS3 Compliant

Allowable Parameter Variance:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 170 V
• Current - Reverse Leakage @ Vr: Equal to or less than specified value at rated voltage
• Operating Temperature - Junction: Range must accommodate application requirements

The MBRF20200CTG meets all mandatory matching parameters and exceeds the reverse voltage specification at 200 V, making it a valid substitute for applications where higher voltage margin is acceptable.

Parameter Comparison

Engineering Selection Recommendations

STPS20170CFP (Primary Selection):

• Use when 170 V reverse voltage specification is the design requirement
• Supports junction temperatures up to 175°C
• ROHS3 compliant and REACH unaffected
• Active product status with established supply chain

MBRF20200CTG (Substitute Selection):

• Use when higher reverse voltage margin (200 V) is acceptable or beneficial
• Suitable for applications where junction temperature does not exceed 150°C
• ROHS3 compliant and REACH unaffected
• Active product status with established supply chain
• Part of onsemi SWITCHMODE™ series

Both parts are active products with full regulatory compliance. Selection between primary and substitute should be based on application voltage requirements and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can MBRF20200CTG replace STPS20170CFP in all applications?

A: The MBRF20200CTG is electrically compatible for applications where the maximum junction temperature does not exceed 150°C. The substitute part has a lower maximum junction temperature (150°C) compared to the primary part (175°C). Verify application thermal requirements before substitution.

Q: What is the significance of the higher reverse voltage rating on the MBRF20200CTG?

A: The MBRF20200CTG is rated for 200 V reverse voltage compared to 170 V on the STPS20170CFP. This higher rating provides additional voltage margin and does not negatively impact applications designed for 170 V operation. The substitute part is suitable for circuits where the reverse voltage does not exceed 170 V.

Q: Are the forward voltage characteristics identical?

A: Yes. Both parts specify 900 mV maximum forward voltage at 10 A, ensuring equivalent voltage drop performance in rectification circuits.

Q: Do both parts have identical package dimensions?

A: Yes. Both parts use the TO-220-3 Full Pack through-hole package, ensuring mechanical and pin compatibility for direct board-level substitution.

Q: Are there regulatory compliance differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.

Q: What is the difference in reverse leakage current?

A: The STPS20170CFP specifies 15 µA at 170 V, while the MBRF20200CTG specifies 1 mA at 200 V. The substitute part is measured at a higher voltage rating. Direct comparison at identical voltage conditions is not provided in the specifications.

Q: Can STPS20170CFP replace MBRF20200CTG?

A: The STPS20170CFP is not suitable as a substitute for MBRF20200CTG in applications requiring 200 V reverse voltage operation, as it is rated for 170 V maximum.