FESB16FTHE3_A/I Equivalent & Substitute Parts

Part Overview

The FESB16FTHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 300 V DC reverse voltage with 16 A average rectified current in a TO-263AB (D2PAK) package. The part is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure continued design support and procurement availability for applications currently utilizing this component.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	16	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 16 A	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	10 @ 300 V	µA
Package / Case	TO-263-3, D2PAK	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-65 to 150	°C
Grade	Automotive	-
Qualification	AEC-Q101	-

Substitute Part Grouping Explanation

Substitution of the FESB16FTHE3_A/I is determined by the following critical parameters: voltage rating (DC reverse), current capacity (average rectified), forward voltage characteristics, reverse recovery time, package form factor, and automotive qualification status.

Two substitute parts are identified based on these criteria:

FESB16GTHM3/I (Vishay General Semiconductor - Diodes Division): This part maintains identical current capacity (16 A), package configuration (TO-263AB D2PAK), and automotive qualification (AEC-Q101). The voltage rating is elevated to 400 V, providing enhanced reverse voltage capability while preserving all other electrical characteristics. This part is in Active product status.

STTH2003CGY-TR (STMicroelectronics): This part is a diode array configuration with 1 Pair Common Cathode topology. It operates at the same 300 V reverse voltage rating and uses the identical TO-263AB D2PAK package. The current capacity per diode is 10 A, and it maintains Fast Recovery characteristics with 40 ns reverse recovery time. This part is in Active product status.

Parameter Comparison

Parameter	FESB16FTHE3_A/I	FESB16GTHM3/I	STTH2003CGY-TR
Manufacturer	Vishay General Semiconductor	Vishay General Semiconductor	STMicroelectronics
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	300 V	400 V	300 V
Current - Average Rectified (Io)	16 A	16 A	10 A per diode
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 16 A	1.3 V @ 16 A	1.25 V @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Reverse Recovery Time (trr)	50 ns	50 ns	40 ns
Current - Reverse Leakage @ Vr	10 µA @ 300 V	10 µA @ 400 V	20 µA @ 300 V
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C to 150°C	-65°C to 150°C	-40°C to 175°C
Grade	Automotive	Automotive	Not specified
Qualification	AEC-Q101	AEC-Q101	Not specified
Product Status	Last Time Buy	Active	Active
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant

Engineering Selection Recommendations

FESB16GTHM3/I Selection Criteria:

This substitute is recommended for applications requiring direct functional equivalence with enhanced design margin. The part maintains identical current capacity (16 A), forward voltage characteristics (1.3 V @ 16 A), and reverse recovery time (50 ns). The elevated voltage rating (400 V versus 300 V) provides additional reverse voltage margin without compromising other electrical parameters. Both parts carry Automotive grade classification and AEC-Q101 qualification, ensuring compliance with automotive reliability standards. The FESB16GTHM3/I is in Active product status, providing long-term procurement stability compared to the Last Time Buy status of the original part.

STTH2003CGY-TR Selection Criteria:

This substitute is applicable for applications where diode array configuration is acceptable and current requirements per diode do not exceed 10 A. The part operates at the same 300 V reverse voltage rating and uses the identical TO-263AB D2PAK package, ensuring mechanical compatibility. The STTH2003CGY-TR features improved reverse recovery time (40 ns versus 50 ns) and extended upper operating temperature range (-40°C to 175°C versus -65°C to 150°C). This part is in Active product status. Note that automotive qualification and AEC-Q101 certification are not specified for this part.

Frequently Asked Questions (FAQ)

Q: Can FESB16GTHM3/I be used as a direct replacement for FESB16FTHE3_A/I?

A: Yes. Both parts are single diodes in TO-263AB D2PAK packages with identical current capacity (16 A), forward voltage (1.3 V @ 16 A), and reverse recovery time (50 ns). The FESB16GTHM3/I has a higher voltage rating (400 V versus 300 V), which is compatible with applications designed for 300 V operation. Both parts carry Automotive grade and AEC-Q101 qualification.

Q: What are the limitations of using STTH2003CGY-TR as a substitute?

A: The STTH2003CGY-TR is a diode array with 1 Pair Common Cathode configuration, not a single diode. The current capacity per diode is 10 A, which is lower than the 16 A rating of the original part. Applications requiring 16 A continuous current cannot use this substitute. Additionally, automotive qualification and AEC-Q101 certification are not specified for this part.

Q: Are all substitute parts in the same package?

A: Yes. All three parts (FESB16FTHE3_A/I, FESB16GTHM3/I, and STTH2003CGY-TR) use the TO-263-3 D2PAK (2 Leads + Tab) surface mount package, ensuring identical PCB footprint and mounting compatibility.

Q: What is the difference in reverse leakage current between the parts?

A: The FESB16FTHE3_A/I and FESB16GTHM3/I both specify 10 µA reverse leakage at their respective voltage ratings (300 V and 400 V). The STTH2003CGY-TR specifies 20 µA reverse leakage at 300 V, which is higher.

Q: Does the higher voltage rating of FESB16GTHM3/I affect circuit performance?

A: No. A higher voltage rating does not negatively affect circuit performance in applications designed for lower voltages. The FESB16GTHM3/I maintains all other electrical characteristics identical to the original part, including forward voltage, current capacity, and recovery time.

Q: What is the product status significance?

A: The FESB16FTHE3_A/I is Last Time Buy, indicating production has ended. The FESB16GTHM3/I and STTH2003CGY-TR are both Active products, ensuring continued availability and long-term procurement support.

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