Equivalent & Substitute Parts for 20ETF08

Part Overview

The Vishay 20ETF08 is a general-purpose rectifier diode rated for 800 V DC reverse voltage with 20 A average rectified current in a Through Hole TO-220AC package. This component is classified as Obsolete, necessitating identification of active substitute parts for new designs and ongoing production requirements. The obsolete status of the 20ETF08 makes sourcing of equivalent alternatives essential for system continuity and long-term component availability.

Substiute Parts

20ETF08

Vishay General Semiconductor - Diodes DivisionIn Stock: 87020ETF08 Datasheet

Current PartRFQ

GPA806HC0G

Taiwan Semiconductor CorporationIn Stock: 1114GPA806HC0G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 20ETF08 is constrained by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute must maintain the 800 V DC reverse voltage specification to ensure safe operation in the intended circuit topology.

Current Rating: The 20ETF08 is rated for 20 A average rectified current. Substitute parts with lower current ratings (such as 8 A) operate within a reduced current envelope and are suitable only for applications where the circuit design accommodates the lower current capacity.

Package Compatibility: The TO-220AC Through Hole package is a mechanical and thermal interface requirement. Substitutes must use the identical TO-220-2 package to ensure PCB compatibility and thermal management characteristics.

Recovery Speed: The 20ETF08 employs Fast Recovery technology (≤ 500ns). Substitutes with Standard Recovery characteristics (> 500ns) exhibit different switching behavior and may introduce performance variations in high-frequency switching applications.

Temperature Range: The operating junction temperature range of -40°C to 150°C defines the thermal operating envelope. Substitutes with extended temperature ranges (such as -55°C to 150°C) provide additional thermal margin.

Compliance Status: The 20ETF08 is RoHS non-compliant. Active substitutes with RoHS3 compliance address regulatory requirements for new designs and manufacturing environments subject to RoHS directives.

Parameter Comparison

Engineering Selection Recommendations

GPA806HC0G (Taiwan Semiconductor Corporation) is an active substitute for the obsolete 20ETF08. This part maintains the 800 V voltage rating and TO-220AC package configuration, ensuring mechanical and electrical compatibility at the interface level.

The GPA806HC0G carries Active product status, ensuring ongoing availability and manufacturing support. The part holds RoHS3 compliance, addressing regulatory requirements for new product designs and manufacturing environments subject to RoHS directives. AEC-Q101 automotive qualification provides additional reliability assurance for applications requiring automotive-grade component standards.

The GPA806HC0G operates at 8 A average rectified current, representing a 60% reduction from the 20ETF08 specification. Circuit designs must accommodate this lower current rating through appropriate load distribution or parallel device configurations if the original 20 A capacity is required.

The GPA806HC0G employs Standard Recovery technology (> 500ns) compared to the 20ETF08 Fast Recovery characteristic (≤ 500ns). Applications sensitive to switching speed or operating at high switching frequencies must evaluate the impact of this recovery time difference on circuit performance.

The extended operating temperature range of -55°C to 150°C in the GPA806HC0G provides additional thermal margin compared to the -40°C to 150°C range of the 20ETF08.

Frequently Asked Questions (FAQ)

Q: Can the GPA806HC0G directly replace the 20ETF08 in all applications?

A: The GPA806HC0G maintains the same 800 V voltage rating and TO-220AC package, ensuring mechanical and electrical interface compatibility. However, the reduced current rating of 8 A versus 20 A requires circuit evaluation. Applications operating at or near 20 A must be redesigned or employ parallel device configurations to maintain current capacity.

Q: What is the impact of switching from Fast Recovery to Standard Recovery technology?

A: The 20ETF08 Fast Recovery characteristic (≤ 500ns) differs from the GPA806HC0G Standard Recovery characteristic (> 500ns). Applications operating at high switching frequencies or sensitive to reverse recovery transients must evaluate whether the longer recovery time introduces unacceptable performance variations, increased switching losses, or EMI characteristics.

Q: Does the GPA806HC0G meet RoHS compliance requirements?

A: Yes. The GPA806HC0G is RoHS3 compliant, whereas the 20ETF08 is RoHS non-compliant. For new designs and manufacturing environments subject to RoHS directives, the GPA806HC0G satisfies regulatory requirements.

Q: Are there package considerations when substituting the GPA806HC0G for the 20ETF08?

A: Both parts use the TO-220-2 package in Through Hole configuration. PCB footprints, mounting hardware, and thermal interface requirements are identical. No package-level redesign is necessary.

Q: What is the significance of AEC-Q101 qualification on the GPA806HC0G?

A: AEC-Q101 qualification indicates the GPA806HC0G meets automotive-grade reliability and testing standards. This qualification is relevant for applications requiring automotive component standards or equivalent reliability assurance.

Q: How does the reverse leakage current differ between the two parts?

A: The 20ETF08 exhibits 100 µA reverse leakage at 800 V, while the GPA806HC0G exhibits 5 µA at 800 V. The GPA806HC0G demonstrates significantly lower leakage, which may reduce standby power consumption in applications sensitive to reverse leakage characteristics.

Q: What is the temperature operating range difference?

A: The 20ETF08 operates from -40°C to 150°C junction temperature. The GPA806HC0G extends this range to -55°C to 150°C, providing an additional 15°C of low-temperature margin for applications operating in cold environments.