STTH2002CFP Equivalent & Substitute Parts

Part Overview

The STTH2002CFP is a general-purpose diode array manufactured by STMicroelectronics, configured as a 1 Pair Common Cathode rectifier with 200 V reverse voltage rating and 10 A average rectified current per diode. The device is packaged in a TO-220-3 Full Pack through-hole configuration and is currently in active product status.

Substitute parts are necessary when the primary component becomes unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits selection from multiple qualified manufacturers. The parts listed below maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

STTH2002CFP

STMicroelectronicsIn Stock: 20239STTH2002CFP Datasheet

Current PartRFQ

FFPF20UP20DNTU

onsemiIn Stock: 3315FFPF20UP20DNTU Datasheet

SimilarRFQ

SDURF2020CT

SMC Diode SolutionsIn Stock: 1158SDURF2020CT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the STTH2002CFP is determined by the following critical parameters:

Mandatory Matching Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io) (per Diode): 10 A
• Mounting Type: Through Hole
• Package / Case: TO-220-3 Full Pack

Allowable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Tolerance within design margin
• Reverse Recovery Time (trr): Variation acceptable within fast recovery classification
• Current - Reverse Leakage @ Vr: Variation acceptable within specified limits
• Operating Temperature - Junction: Variation acceptable if maximum rating meets or exceeds application requirements
• Technology: Standard or Avalanche technology both acceptable

The substitute parts identified below satisfy the mandatory matching criteria and fall within allowable variation ranges for the secondary parameters.

Parameter Comparison

Engineering Selection Recommendations

SDURF2020CT (SMC Diode Solutions) is the primary substitute for the STTH2002CFP. Both devices are in active product status, maintain identical voltage and current ratings, and are packaged in TO-220-3 Full Pack configurations. The SDURF2020CT features an isolated tab variant (ITO-220AB), which provides additional design flexibility for thermal management and electrical isolation applications. The reverse recovery time of 35 ns and reverse leakage current of 15 µA fall within acceptable operational parameters. REACH compliance status differs; the SDURF2020CT is REACH Affected, whereas the STTH2002CFP is REACH Unaffected. This distinction requires verification against specific regulatory requirements for the end application.

FFPF20UP20DNTU (onsemi) is a secondary substitute option. This device meets the mandatory electrical and mechanical criteria; however, it carries an Obsolete product status. The Avalanche technology classification differs from the Standard technology of the STTH2002CFP. The reverse leakage current of 100 µA is elevated relative to the primary part and substitute, and the maximum junction temperature rating of 150°C is lower than the STTH2002CFP specification of 175°C. Selection of this part is appropriate only when inventory constraints or legacy design requirements necessitate its use, and when the elevated reverse leakage and reduced temperature rating do not conflict with application specifications.

Frequently Asked Questions (FAQ)

Q: Can the SDURF2020CT replace the STTH2002CFP in all applications?

A: The SDURF2020CT satisfies the mandatory electrical and mechanical compatibility criteria: 200 V reverse voltage, 10 A average rectified current, 1 Pair Common Cathode configuration, and TO-220-3 Full Pack through-hole packaging. The isolated tab variant provides additional thermal and electrical isolation options. Verification of REACH compliance requirements is necessary for specific applications.

Q: What is the significance of the Isolated Tab (ITO-220AB) package variant in the SDURF2020CT?

A: The isolated tab configuration electrically isolates the mounting tab from the device substrate, eliminating the need for an insulating washer in applications requiring electrical isolation between the component and the heat sink. This feature simplifies thermal management design in certain circuit topologies.

Q: Why is the FFPF20UP20DNTU listed as Obsolete?

A: The FFPF20UP20DNTU carries an Obsolete product status designation from the manufacturer. This indicates that the part is no longer in active production and may have limited availability. Selection of this part is restricted to applications where legacy design requirements or specific inventory constraints apply.

Q: How does the reverse leakage current difference affect circuit performance?

A: The STTH2002CFP specifies 10 µA reverse leakage at 200 V, the SDURF2020CT specifies 15 µA, and the FFPF20UP20DNTU specifies 100 µA. Higher reverse leakage current increases standby power dissipation and may affect circuit performance in high-impedance or precision analog applications. The FFPF20UP20DNTU reverse leakage is significantly elevated and requires evaluation against application requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The STTH2002CFP, FFPF20UP20DNTU, and SDURF2020CT are all ROHS3 Compliant. However, the SDURF2020CT is REACH Affected, whereas the STTH2002CFP is REACH Unaffected. Regulatory compliance verification is necessary for applications subject to REACH restrictions.

Q: What is the difference between Standard and Avalanche diode technology?

A: The STTH2002CFP uses Standard technology, while the FFPF20UP20DNTU uses Avalanche technology. Both technologies are fast recovery rectifiers suitable for the specified voltage and current ratings. Avalanche technology provides additional overvoltage protection through controlled breakdown characteristics. Technology selection depends on application-specific overvoltage transient requirements.

Q: Can the STTH2002CFP be used in applications requiring the isolated tab feature?

A: The STTH2002CFP is packaged in a standard TO-220-3 Full Pack configuration without an isolated tab. The SDURF2020CT offers an isolated tab variant (ITO-220AB) for applications requiring electrical isolation between the component and the heat sink. If isolation is required, the SDURF2020CT is the appropriate selection.