FESB16BTHE3_A/I Equivalent & Substitute Parts

Part Overview

The FESB16BTHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component is rated for 100 V DC reverse voltage and 16 A average rectified current in a TO-263AB (D2PAK) package. The device features fast recovery characteristics with a reverse recovery time of 35 ns and is qualified to AEC-Q101 automotive standards.

This part is designated as Last Time Buy, indicating discontinued production. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for ongoing production and field service applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	16	A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 16 A	mV
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65°C ~ 150°C	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
Technology	Standard	—

Substitute Part Grouping Explanation

Substitution of the FESB16BTHE3_A/I is determined by the following critical parameters:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) rating must equal or exceed 100 V
Current - Average Rectified (Io) must equal or exceed 16 A
Forward voltage drop characteristics must be compatible with circuit design
Reverse recovery time must support fast recovery operation (≤ 500 ns)

Mechanical & Package Compatibility:

Package must be TO-263-3, D2PAK (2 Leads + Tab), TO-263AB for direct PCB substitution
Mounting type must be Surface Mount
Pin configuration must be compatible with existing PCB layouts

Qualification & Compliance:

Automotive grade classification required
AEC-Q101 qualification mandatory
RoHS3 compliance required
Operating temperature range must support -65°C to 150°C junction temperature

Two substitute parts meet these criteria with specific trade-offs:

FESB16DTHM3/I (Vishay): Identical current rating (16 A) with elevated voltage rating (200 V), same package, same manufacturer family
STPS20H100CGY-TR (STMicroelectronics): Different technology (Schottky vs. Standard), reduced current per diode (10 A), same voltage rating (100 V), same package

Parameter Comparison

Parameter	FESB16BTHE3_A/I	FESB16DTHM3/I	STPS20H100CGY-TR
Manufacturer	Vishay General Semiconductor	Vishay General Semiconductor	STMicroelectronics
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	100 V	200 V	100 V
Current - Average Rectified (Io)	16 A	16 A	10 A (per diode)
Voltage - Forward (Vf) (Max) @ If	975 mV @ 16 A	975 mV @ 16 A	770 mV @ 10 A
Reverse Recovery Time (trr)	35 ns	35 ns	≤ 500 ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V	10 µA @ 200 V	4.5 µA @ 100 V
Technology	Standard	Standard	Schottky
Diode Configuration	Single Diode	Single Diode	1 Pair Common Cathode
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 ~ 150°C	-65°C ~ 150°C	-40°C ~ 175°C
Grade	Automotive	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101	AEC-Q101
Product Status	Last Time Buy	Active	Active
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant

Engineering Selection Recommendations

FESB16DTHM3/I Selection Criteria:

This substitute is recommended for applications where the original FESB16BTHE3_A/I is no longer available and the circuit design can accommodate a higher voltage rating. The FESB16DTHM3/I maintains identical current capacity (16 A), forward voltage characteristics (975 mV @ 16 A), and reverse recovery time (35 ns). Both devices are manufactured by Vishay within the same product family and share identical package geometry (TO-263AB D2PAK). The part is currently in Active production status with 985 units in stock. AEC-Q101 qualification and automotive grade classification are maintained. This substitute provides direct functional equivalence with enhanced voltage margin.

STPS20H100CGY-TR Selection Criteria:

This substitute is applicable only when circuit topology permits use of a Schottky diode array configuration. The STPS20H100CGY-TR is a 1 Pair Common Cathode configuration, requiring circuit redesign to accommodate the dual-diode architecture. The device maintains the 100 V voltage rating but reduces current capacity to 10 A per diode. Forward voltage is reduced to 770 mV @ 10 A, resulting in lower power dissipation. The part is currently in Active production status with 1494 units in stock. AEC-Q101 qualification and automotive grade classification are maintained. This substitute is suitable only for applications where the reduced current rating and Schottky technology characteristics are compatible with circuit requirements.

Recommendation Priority:

For direct replacement without circuit modification, FESB16DTHM3/I is the primary substitute. For applications requiring Schottky technology benefits or where current requirements can be reduced, STPS20H100CGY-TR is an alternative with circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can FESB16DTHM3/I be used as a direct replacement for FESB16BTHE3_A/I?

A: Yes. Both devices share identical package geometry (TO-263AB D2PAK), current rating (16 A), forward voltage characteristics (975 mV @ 16 A), and reverse recovery time (35 ns). The FESB16DTHM3/I has a higher voltage rating (200 V vs. 100 V), which provides additional design margin without affecting circuit operation in 100 V applications. No PCB modification is required.

Q: What is the key difference between FESB16DTHM3/I and STPS20H100CGY-TR?

A: FESB16DTHM3/I is a standard rectifier diode with 16 A capacity. STPS20H100CGY-TR is a Schottky diode array with 1 Pair Common Cathode configuration and 10 A per diode capacity. The Schottky technology offers lower forward voltage (770 mV vs. 975 mV) but requires circuit redesign to accommodate the dual-diode configuration. Current capacity is reduced from 16 A to 10 A per diode.

Q: Are all substitute parts AEC-Q101 qualified?

A: Yes. Both FESB16DTHM3/I and STPS20H100CGY-TR carry AEC-Q101 qualification and automotive grade classification, matching the original FESB16BTHE3_A/I specification.

Q: Can STPS20H100CGY-TR be used without circuit modification?

A: No. STPS20H100CGY-TR is a diode array with 1 Pair Common Cathode configuration, fundamentally different from the single-diode architecture of FESB16BTHE3_A/I. Circuit redesign is required to accommodate the dual-diode topology and reduced current rating (10 A per diode vs. 16 A).

Q: What is the operating temperature range for each substitute?

A: FESB16BTHE3_A/I and FESB16DTHM3/I both operate from -65°C to 150°C junction temperature. STPS20H100CGY-TR operates from -40°C to 175°C, providing extended high-temperature capability but reduced low-temperature range.

Q: Are there inventory considerations for selecting a substitute?

A: FESB16BTHE3_A/I is designated Last Time Buy with 1067 units in stock. FESB16DTHM3/I is Active status with 985 units available. STPS20H100CGY-TR is Active status with 1494 units available. All three parts have adequate inventory for current procurement.

Q: Do all parts comply with RoHS3 requirements?

A: FESB16BTHE3_A/I and STPS20H100CGY-TR are explicitly ROHS3 Compliant. RoHS status for FESB16DTHM3/I is not specified in the provided data.

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