Equivalent & Substitute Parts for 20ETF02FP

Part Overview

The Vishay 20ETF02FP is a general-purpose rectifier diode rated for 200 V DC reverse voltage and 20 A average rectified current in a Through Hole TO-220AC Full Pack package. This component is classified as Obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 20ETF02FP operates across a junction temperature range of -40°C to 150°C and features fast recovery characteristics with a reverse recovery time of 160 ns. Due to its obsolete status and RoHS non-compliant classification, active substitute parts with equivalent electrical performance are required for new designs and production continuity.

Substiute Parts

20ETF02FP

Vishay General Semiconductor - Diodes DivisionIn Stock: 89120ETF02FP Datasheet

Current PartRFQ

STTH1502FP

STMicroelectronicsIn Stock: 1259STTH1502FP Datasheet

MFR RecommendedRFQ

STTH802FP

STMicroelectronicsIn Stock: 1454STTH802FP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 20ETF02FP are selected based on the following electrical and mechanical parameters:

Primary Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 200 V minimum
• Mounting Type: Through Hole
• Package / Case: TO-220-2 configuration
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Factors:

• Current - Average Rectified (Io): Substitute parts must support the application's current requirements
• Voltage - Forward (Vf) (Max): Forward voltage characteristics must be compatible with circuit design
• Reverse Recovery Time (trr): Fast recovery characteristics must be maintained
• Operating Temperature - Junction: Maximum junction temperature rating

The substitute parts STTH1502FP and STTH802FP both meet the primary matching criteria with identical 200 V reverse voltage ratings, Through Hole mounting, TO-220-2 package configuration, and fast recovery speed classification. These parts are manufactured by STMicroelectronics and carry Active product status with ROHS3 compliance, addressing the obsolescence and compliance limitations of the 20ETF02FP.

Parameter Comparison

Engineering Selection Recommendations

STTH1502FP Selection Criteria: The STTH1502FP is suitable for applications requiring 15 A average rectified current at 200 V reverse voltage. This substitute maintains electrical compatibility with the 20ETF02FP across the primary voltage and package specifications. The STTH1502FP offers improved performance characteristics including reduced reverse recovery time (36 ns versus 160 ns) and lower reverse leakage current (10 µA versus 100 µA). Active product status and ROHS3 compliance address the obsolescence and regulatory limitations of the original part. Maximum junction temperature rating of 175°C exceeds the 20ETF02FP specification of 150°C.

STTH802FP Selection Criteria: The STTH802FP is suitable for applications requiring 8 A average rectified current at 200 V reverse voltage. This substitute maintains electrical compatibility with the 20ETF02FP across the primary voltage and package specifications. The STTH802FP provides the lowest reverse recovery time (30 ns) and reverse leakage current (6 µA) among the available substitutes. Active product status and ROHS3 compliance address the obsolescence and regulatory limitations of the original part. Maximum junction temperature rating of 175°C exceeds the 20ETF02FP specification of 150°C. The isolated tab configuration in the TO-220-2 package provides additional thermal and electrical isolation options.

Selection Logic: Choose STTH1502FP when the application requires current capacity closest to the original 20 A specification. Choose STTH802FP when the application current requirements are 8 A or lower, prioritizing improved reverse recovery characteristics and reduced leakage current. Both substitutes are Active products with superior compliance status and thermal ratings compared to the Obsolete 20ETF02FP.

Frequently Asked Questions (FAQ)

Q: Can the STTH1502FP directly replace the 20ETF02FP in all applications?

A: The STTH1502FP is electrically compatible with the 20ETF02FP for voltage and package specifications. However, the STTH1502FP is rated for 15 A average rectified current compared to the 20ETF02FP's 20 A rating. Direct replacement is suitable only for applications where the actual current demand does not exceed 15 A. Circuit analysis is required to confirm current compatibility.

Q: What are the advantages of the STTH802FP substitute?

A: The STTH802FP provides superior reverse recovery time (30 ns versus 160 ns) and significantly lower reverse leakage current (6 µA versus 100 µA). These characteristics reduce switching losses and improve efficiency in high-frequency applications. The STTH802FP is suitable for applications requiring 8 A or lower current capacity. Both substitute parts offer ROHS3 compliance and Active product status.

Q: Are the TO-220-2 packages of all three parts mechanically identical?

A: The 20ETF02FP, STTH1502FP, and STTH802FP all use TO-220-2 package configuration with Through Hole mounting. The STTH802FP features an isolated tab option within the TO-220-2 Full Pack specification. Pin configuration and mounting hole spacing are compatible across all three parts for PCB layout purposes.

Q: Why is the 20ETF02FP classified as Obsolete?

A: The 20ETF02FP is classified as Obsolete by Vishay General Semiconductor - Diodes Division. Obsolete classification indicates that the manufacturer has discontinued production and support for this part. Substitute parts with Active status ensure long-term availability and continued manufacturer support for new designs and production requirements.

Q: What is the impact of RoHS compliance on part selection?

A: The 20ETF02FP is RoHS non-compliant, while both STTH1502FP and STTH802FP are ROHS3 compliant. RoHS3 compliance is required for many applications, particularly in consumer electronics and regulated industries. Selection of ROHS3-compliant substitutes ensures regulatory compliance and eliminates potential supply chain restrictions.

Q: How do the reverse recovery time specifications affect circuit performance?

A: Reverse recovery time (trr) determines the speed at which the diode transitions from forward conduction to reverse blocking. The STTH1502FP (36 ns) and STTH802FP (30 ns) have significantly faster recovery times than the 20ETF02FP (160 ns). Faster recovery reduces switching losses, improves efficiency, and enables operation at higher switching frequencies. Applications with stringent efficiency or frequency requirements benefit from the improved reverse recovery characteristics of the substitute parts.

Q: What current rating should be selected for my application?

A: Select the substitute part based on the maximum average rectified current required by your application. The STTH1502FP supports up to 15 A, and the STTH802FP supports up to 8 A. If your application requires more than 15 A, the 20ETF02FP's 20 A rating cannot be matched by these substitutes, and alternative parts must be evaluated. If your application requires 8 A or less, the STTH802FP is suitable. If your application requires between 8 A and 15 A, the STTH1502FP is suitable.