FEP16ATD Equivalent & Substitute Parts

Part Overview

The FEP16ATD is a diode array manufactured by onsemi, configured as a 1 Pair Series Connection rectifier rated for 50 V DC reverse voltage and 16 A average rectified current per diode. The device is packaged in TO-220-3 through-hole configuration and operates across a junction temperature range of -55°C to 150°C. The FEP16ATD is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements.

Substiute Parts

FEP16ATD

onsemiIn Stock: 972FEP16ATD Datasheet

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DSEE15-06CC

IXYSIn Stock: 1845DSEE15-06CC Datasheet

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GI2401-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1209GI2401-E3/45 Datasheet

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SBR30A45CT

Diodes IncorporatedIn Stock: 16699SBR30A45CT Datasheet

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SBRT30A45CT

Diodes IncorporatedIn Stock: 984SBRT30A45CT Datasheet

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SF2001GHC0G

Taiwan Semiconductor CorporationIn Stock: 871SF2001GHC0G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FEP16ATD is determined by the following critical parameters: diode configuration (1 Pair Series Connection or 1 Pair Common Cathode), voltage rating (50 V DC reverse), current rating (16 A or higher per diode), package type (TO-220-3), mounting method (through hole), and recovery speed classification (fast recovery ≤ 500ns). Parts are grouped into two categories based on these constraints:

Category 1: Direct Voltage and Current Match (50 V, 16 A) Parts meeting the exact 50 V reverse voltage and 16 A current specifications with compatible diode configurations and TO-220-3 packaging.

Category 2: Voltage Derating or Current Reduction (45 V or 15 A) Parts with reduced voltage ratings (45 V) or current ratings (15 A) that operate within the electrical envelope of the FEP16ATD application space, suitable for circuits with lower voltage or current demands.

Category 3: Voltage Upgrade (600 V) Parts with significantly elevated voltage ratings that provide enhanced overvoltage protection but require circuit validation for forward voltage characteristics.

Parameter Comparison

Engineering Selection Recommendations

GI2401-E3/45 (Vishay General Semiconductor - Diodes Division) The GI2401-E3/45 provides the closest electrical match to the FEP16ATD with identical 50 V reverse voltage and 16 A current ratings in TO-220-3 packaging. This part is active and ROHS3 compliant. The diode configuration differs (1 Pair Common Cathode versus Series Connection), requiring circuit topology verification. Forward voltage characteristics are comparable (975 mV @ 8 A versus 950 mV @ 8 A). Reverse leakage is higher at 50 µA @ 50 V compared to 10 µA @ 50 V. Operating temperature range extends to -65°C minimum. This part is suitable for direct replacement in applications where the common cathode configuration is acceptable.

SF2001GHC0G (Taiwan Semiconductor Corporation) The SF2001GHC0G offers 50 V reverse voltage matching with enhanced current capability (20 A versus 16 A) in TO-220-3 packaging. This is a single diode configuration rather than a diode array, requiring circuit redesign for array-dependent applications. The part is active, ROHS3 compliant, and AEC-Q101 automotive qualified. Forward voltage is 975 mV @ 10 A. Reverse leakage is superior at 5 µA @ 50 V. This part is suitable for applications requiring higher current capacity or automotive-grade reliability.

SBR30A45CT (Diodes Incorporated) The SBR30A45CT operates at 45 V reverse voltage (5 V derating from FEP16ATD) with 15 A current rating (1 A reduction). This Super Barrier technology diode array features significantly lower forward voltage (500 mV @ 15 A) and is packaged in TO-220-3. The part is active and ROHS3 compliant. Diode configuration is 1 Pair Common Cathode. Reverse leakage is elevated at 500 µA @ 45 V. This part is suitable for applications with lower voltage and current requirements where reduced forward voltage drop is beneficial.

SBRT30A45CT (Diodes Incorporated) The SBRT30A45CT is a TrenchSBR variant with 45 V reverse voltage and 15 A current rating in TO-220-3 packaging. This part is active and ROHS3 compliant. Recovery speed is standard (>500ns) rather than fast recovery. Forward voltage is 510 mV @ 15 A. Reverse leakage is 400 µA @ 45 V. This part is suitable for applications with lower voltage and current requirements where standard recovery speed is acceptable.

DSEE15-06CC (IXYS) The DSEE15-06CC provides significantly elevated voltage rating (600 V) with 15 A current in ISOPLUS220™ packaging. This part is active with extended operating temperature range (-55°C to 175°C). Diode configuration is 1 Pair Series Connection, matching the FEP16ATD topology. Forward voltage is substantially higher at 1.7 V @ 15 A. This part is suitable for high-voltage applications requiring overvoltage protection beyond 50 V specifications.

Frequently Asked Questions (FAQ)

Q: Can the GI2401-E3/45 directly replace the FEP16ATD in all applications? A: The GI2401-E3/45 matches the FEP16ATD in voltage (50 V) and current (16 A) ratings with identical TO-220-3 packaging. However, the diode configuration differs: GI2401-E3/45 is 1 Pair Common Cathode while FEP16ATD is 1 Pair Series Connection. Circuit topology must be verified to confirm compatibility with the common cathode configuration before substitution.

Q: What is the difference between Series Connection and Common Cathode diode configurations? A: Series Connection diodes share a common node between the two diodes in the pair, while Common Cathode diodes share the cathode terminal. These configurations have different electrical characteristics and pin assignments. The specific circuit application determines which configuration is required.

Q: Why does the SBR30A45CT have lower forward voltage than the FEP16ATD? A: The SBR30A45CT uses Super Barrier technology, which is a different semiconductor technology than the standard technology used in the FEP16ATD. Super Barrier diodes exhibit lower forward voltage drop characteristics, resulting in reduced power dissipation in forward-biased operation.

Q: Is the SF2001GHC0G suitable as a replacement for the FEP16ATD? A: The SF2001GHC0G is a single diode, not a diode array. It cannot directly replace the FEP16ATD in applications requiring a diode array configuration. However, it may be used in applications where only a single diode is needed, provided the 50 V voltage rating and 20 A current capability meet circuit requirements.

Q: What does ROHS3 compliance mean? A: ROHS3 compliance indicates the part meets the Restriction of Hazardous Substances Directive 3, which restricts the use of specific hazardous materials in electrical and electronic equipment. The FEP16ATD does not specify ROHS status, while GI2401-E3/45, SBR30A45CT, SBRT30A45CT, and SF2001GHC0G are all ROHS3 compliant.

Q: Can the DSEE15-06CC be used in a 50 V application? A: Yes, the DSEE15-06CC is rated for 600 V reverse voltage, which exceeds the 50 V requirement of the FEP16ATD application. However, the significantly higher forward voltage (1.7 V @ 15 A) compared to the FEP16ATD (950 mV @ 8 A) results in increased power dissipation and heat generation. Circuit thermal analysis is required to confirm acceptability.

Q: What is the significance of reverse recovery time (trr)? A: Reverse recovery time is the interval required for a diode to transition from forward-biased to reverse-biased state. Shorter recovery times (35 ns for FEP16ATD, GI2401-E3/45, and SF2001GHC0G; 30 ns for DSEE15-06CC) reduce switching losses and are preferred in high-frequency switching applications. SBRT30A45CT does not specify trr.

Q: Why is reverse leakage current important? A: Reverse leakage current represents the small current flowing through a reverse-biased diode. Lower leakage currents reduce power dissipation in standby conditions and improve circuit efficiency. The FEP16ATD has 10 µA @ 50 V leakage, while SF2001GHC0G has superior leakage at 5 µA @ 50 V.

Q: Are all substitute parts available in the same packaging? A: Most substitute parts are available in TO-220-3 packaging, except DSEE15-06CC which uses ISOPLUS220™ packaging. While both are through-hole packages, ISOPLUS220™ has different pin configuration and mechanical dimensions. PCB layout modification is required if substituting with DSEE15-06CC.

Q: What is the operating temperature range significance? A: The operating temperature range specifies the junction temperature limits within which the diode functions within specified electrical parameters. The FEP16ATD operates from -55°C to 150°C. GI2401-E3/45 and SBR30A45CT extend to -65°C minimum, while DSEE15-06CC extends to 175°C maximum, providing wider temperature operation capability.