FESE16HT-E3/45 Equivalent & Substitute Parts

Part Overview

The FESE16HT-E3/45 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 500 V DC reverse voltage and 16 A average rectified current in a Through Hole TO-220AC package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The diode features fast recovery characteristics with a reverse recovery time of 50 ns and operates across a junction temperature range of -65°C to 150°C.

Substiute Parts

FESE16HT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1095FESE16HT-E3/45 Datasheet

Current PartRFQ

VS-ETU1506-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 9139VS-ETU1506-M3 Datasheet

MFR RecommendedRFQ

SFAF1607G C0G

Taiwan Semiconductor CorporationIn Stock: 771SFAF1607G C0G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FESE16HT-E3/45 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Voltage - DC Reverse (Vr) rating must equal or exceed 500 V
• Current - Average Rectified (Io) rating must equal or exceed 16 A
• Mounting Type must be Through Hole
• Package / Case must be TO-220-2 or compatible variant
• Technology classification must be Standard
• RoHS3 Compliance required

Secondary Compatibility Factors:

• Reverse Recovery Time (trr) performance characteristics
• Forward Voltage (Vf) characteristics at rated current
• Reverse Leakage Current specifications
• Operating Temperature range compatibility

The identified substitute parts meet these criteria with variations in voltage rating, current rating, and recovery time performance that maintain functional equivalence within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

VS-ETU1506-M3 (Vishay General Semiconductor - Diodes Division):

This substitute provides enhanced voltage rating at 600 V, exceeding the original 500 V specification. The part is classified as Active product status, ensuring long-term availability and supply chain continuity. Current rating is 15 A, which is 1 A lower than the original specification. Reverse recovery time is improved at 40 ns compared to the original 50 ns. Operating temperature range extends to 175°C, providing additional thermal margin. ROHS3 compliance and identical mounting configuration (Through Hole TO-220AC) support direct substitution in most applications where the reduced current rating is acceptable.

SFAF1607G C0G (Taiwan Semiconductor Corporation):

This substitute maintains the original 500 V voltage rating and 16 A current rating, providing electrical parameter equivalence. Product status is Active, supporting procurement continuity. Reverse recovery time is superior at 35 ns. Forward voltage is 1.7 V at 16 A, representing a 0.2 V increase over the original specification. Operating temperature range is -55°C to 150°C, with the lower bound 10°C higher than the original. Package designation is TO-220-2 Full Pack with ITO-220AC supplier device package. ROHS3 compliance is maintained. This part provides direct electrical and mechanical compatibility with identical current and voltage ratings.

Both substitute parts maintain ROHS3 compliance, Through Hole mounting configuration, and Standard technology classification required for functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can VS-ETU1506-M3 replace FESE16HT-E3/45 in all applications?

A: VS-ETU1506-M3 provides a 600 V reverse voltage rating, which exceeds the original 500 V specification. However, the current rating is 15 A compared to the original 16 A. Substitution is valid only in applications where the circuit current requirement does not exceed 15 A. The enhanced voltage rating provides additional design margin for overvoltage conditions.

Q: What are the package compatibility considerations?

A: All three parts use Through Hole mounting in TO-220-2 package configuration. FESE16HT-E3/45 and VS-ETU1506-M3 use TO-220AC supplier device package, while SFAF1607G C0G uses ITO-220AC. These package variants are mechanically compatible for Through Hole PCB mounting with identical lead spacing and thermal characteristics.

Q: How do forward voltage differences affect circuit performance?

A: FESE16HT-E3/45 specifies 1.5 V forward voltage at 16 A. VS-ETU1506-M3 specifies 1.9 V at 15 A, and SFAF1607G C0G specifies 1.7 V at 16 A. Higher forward voltage results in increased power dissipation. Circuit designs must account for these differences in thermal management and power budget calculations.

Q: Are there temperature range limitations for substitution?

A: FESE16HT-E3/45 operates from -65°C to 150°C. VS-ETU1506-M3 extends to 175°C, providing additional high-temperature margin. SFAF1607G C0G operates from -55°C to 150°C, with a higher minimum temperature. Substitution is valid only if the application temperature range falls within the substitute part's specified operating range.

Q: Why is FESE16HT-E3/45 classified as obsolete?

A: Obsolete classification indicates the part is no longer manufactured or supported by Vishay General Semiconductor. Both substitute parts are classified as Active, ensuring continued availability, technical support, and supply chain reliability for new designs and ongoing production requirements.

Q: What is the significance of reverse recovery time differences?

A: FESE16HT-E3/45 has 50 ns reverse recovery time. VS-ETU1506-M3 provides 40 ns, and SFAF1607G C0G provides 35 ns. Faster recovery time reduces switching losses and improves efficiency in high-frequency rectification applications. Slower recovery time may introduce additional switching noise in sensitive circuits.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. FESE16HT-E3/45, VS-ETU1506-M3, and SFAF1607G C0G are all ROHS3 Compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.