FES16FT-E3/45 Equivalent & Substitute Parts

Part Overview

The FES16FT-E3/45 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole TO-220AC package device is rated for 300 V DC reverse voltage and 16 A average rectified current, with a maximum forward voltage of 1.3 V at 16 A. The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified when design requirements permit operation at different current ratings, voltage ratings, or package configurations while maintaining functional compatibility within the application circuit.

Substiute Parts

FES16FT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1314FES16FT-E3/45 Datasheet

Current PartRFQ

DPG10I300PA

IXYSIn Stock: 825DPG10I300PA Datasheet

MFR RecommendedRFQ

DPG15I300PA

IXYSIn Stock: 1376DPG15I300PA Datasheet

MFR RecommendedRFQ

LQA06T300

Power IntegrationsIn Stock: 4359LQA06T300 Datasheet

MFR RecommendedRFQ

LXA03T600

Power IntegrationsIn Stock: 5354LXA03T600 Datasheet

MFR RecommendedRFQ

STTH2003CT

STMicroelectronicsIn Stock: 60225STTH2003CT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FES16FT-E3/45 are selected based on compatibility within the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 300 V
• Mounting Type: Through Hole
• Package / Case: TO-220-2 or TO-220-3 (pin-compatible configurations)
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• RoHS Compliance: ROHS3 Compliant or RoHS Compliant

Current Rating Considerations: Substitute parts may operate at lower average rectified current ratings (10 A, 15 A, 6 A, or 3 A) when circuit design permits. Parts with lower current ratings are suitable for applications where the FES16FT-E3/45 provides design margin above actual load requirements.

Voltage Rating Considerations: Substitute parts rated at 600 V (LXA03T600) are suitable for applications where higher reverse voltage capability is required or acceptable. Parts rated at 300 V maintain voltage specification parity with the main part.

Package Configuration: The STTH2003CT operates in a TO-220-3 package (diode array, 1 pair common cathode configuration) and is pin-compatible for applications utilizing dual-diode functionality.

Parameter Comparison

Engineering Selection Recommendations

DPG10I300PA (IXYS HiPerFRED™ Series) This 10 A rated substitute operates at 300 V reverse voltage with improved reverse recovery time (35 ns versus 50 ns) and reduced reverse leakage current (1 µA versus 10 µA). The part is ROHS3 compliant and rated to 175°C junction temperature. Selection is appropriate for applications where current demand does not exceed 10 A and improved switching performance is beneficial.

DPG15I300PA (IXYS HiPerFRED™ Series) This 15 A rated substitute provides near-equivalent current capacity to the FES16FT-E3/45 at 300 V reverse voltage. Reverse recovery time is 35 ns and reverse leakage current is 1 µA. The part is ROHS3 compliant and rated to 175°C junction temperature. Selection is appropriate for applications requiring 15 A or less where the FES16FT-E3/45 is unavailable.

LQA06T300 (Power Integrations Qspeed™ Series) This 6 A rated substitute operates at 300 V reverse voltage with the fastest reverse recovery time (11.5 ns) among all substitutes. The part is RoHS compliant and rated to 150°C junction temperature. Selection is appropriate for low-current applications (6 A or less) where switching speed is critical. Forward voltage is elevated at 1.9 V @ 6 A.

LXA03T600 (Power Integrations Qspeed™ Series) This 3 A rated substitute operates at 600 V reverse voltage, providing double the voltage rating of the FES16FT-E3/45. The part is RoHS compliant and rated to 150°C junction temperature. Selection is appropriate for applications requiring higher reverse voltage capability or where 3 A current capacity is sufficient. Forward voltage is significantly elevated at 3.1 V @ 3 A.

STTH2003CT (STMicroelectronics) This part is a diode array in TO-220-3 package configuration with 1 pair common cathode, rated for 10 A per diode at 300 V reverse voltage. The part is ROHS3 compliant and rated to 175°C junction temperature. Selection is appropriate for dual-diode applications or bridge rectifier configurations where the common cathode topology is required.

Frequently Asked Questions (FAQ)

Q: Can DPG10I300PA replace FES16FT-E3/45 in all applications? A: DPG10I300PA is suitable for applications where average rectified current does not exceed 10 A. If the circuit requires the full 16 A capacity of the FES16FT-E3/45, DPG10I300PA is not appropriate. DPG15I300PA provides closer current capacity matching.

Q: What is the difference between TO-220-2 and TO-220-3 packages? A: TO-220-2 is a two-pin package (anode and cathode). TO-220-3 is a three-pin package used for diode arrays or dual-diode configurations. STTH2003CT in TO-220-3 package is not pin-compatible with TO-220-2 applications unless the circuit topology supports dual-diode operation.

Q: Why does LXA03T600 have a higher forward voltage than other substitutes? A: LXA03T600 is rated for 600 V reverse voltage, which requires different semiconductor junction design. Higher voltage rating inherently results in higher forward voltage drop at rated current. This part is selected only when 600 V reverse voltage capability is required.

Q: Are all substitute parts ROHS3 compliant? A: DPG10I300PA, DPG15I300PA, and STTH2003CT are ROHS3 compliant. LQA06T300 and LXA03T600 are RoHS compliant but not specifically designated as ROHS3. Verify compliance requirements for your application.

Q: What does reverse recovery time (trr) indicate? A: Reverse recovery time is the interval required for a diode to switch from forward conduction to reverse blocking state. Shorter trr values indicate faster switching performance. LQA06T300 has the shortest trr at 11.5 ns, while FES16FT-E3/45 has 50 ns.

Q: Can I use a substitute with lower current rating if my circuit only draws 10 A? A: Yes, if your circuit maximum current is 10 A or less, DPG10I300PA is suitable. If maximum current is 15 A or less, DPG15I300PA is suitable. Operating at or below the rated current ensures proper thermal performance and reliability.

Q: What is the significance of reverse leakage current differences? A: Reverse leakage current indicates the small current flowing through the diode in reverse bias condition. Lower leakage current (1 µA in DPG10I300PA and DPG15I300PA) indicates better reverse blocking performance compared to FES16FT-E3/45 at 10 µA. Higher leakage (LXA03T600 at 250 µA @ 600 V) is characteristic of higher voltage rated devices.

Q: Is STTH2003CT suitable for single-diode applications? A: STTH2003CT is a diode array with common cathode configuration. While it contains two diodes, it is designed for dual-diode applications such as bridge rectifiers. For single-diode applications, use single-diode substitutes: DPG10I300PA, DPG15I300PA, LQA06T300, or LXA03T600.

Q: What is the operating temperature range difference between substitutes? A: FES16FT-E3/45 operates from -65°C to 150°C junction temperature. DPG10I300PA and DPG15I300PA extend to 175°C. LQA06T300 and LXA03T600 are limited to 150°C maximum. STTH2003CT operates to 175°C. Higher temperature ratings provide additional thermal margin in high-temperature environments.