FESB16CTHE3_A/I Equivalent & Substitute Parts

Part Overview

The FESB16CTHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 150 V DC reverse voltage with 16 A average rectified current in a TO-263AB (D2PAK) package. The device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. Identification of equivalent and substitute parts is necessary to ensure design continuity and procurement flexibility for applications requiring this diode specification or compatible alternatives.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	150	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 @ 150 V	µA
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	-
Operating Temperature - Junction	-65 to 150	°C
Grade	Automotive	-
Qualification	AEC-Q101	-
Technology	Standard	-

Substitute Part Grouping Explanation

Substitute parts for the FESB16CTHE3_A/I are classified based on compatibility with the following critical parameters:

Mechanical Compatibility: All substitute parts must use the TO-263AB (D2PAK) surface mount package to ensure PCB footprint compatibility without redesign.

Electrical Compatibility: Substitute parts must maintain or exceed the 16 A average rectified current rating and support the operating temperature range of -65°C to 150°C. Reverse voltage rating may be equal to or greater than 150 V, as higher voltage ratings provide backward compatibility in applications not requiring the full 150 V specification.

Functional Compatibility: All substitute parts must operate as rectifier diodes with fast recovery characteristics (≤500 ns) and maintain automotive-grade qualification (AEC-Q101) for applications requiring this certification level.

Substitution Categories:

Parametric Equivalent: Parts with identical electrical specifications (150 V, 16 A) and same technology (Standard), differing only in packaging format or manufacturer part number variant.
Manufacturer Recommended Upgrade: Parts with enhanced voltage rating (200 V) while maintaining identical current rating (16 A) and all other critical parameters, offering improved design margin.
Cross-Manufacturer Alternative: Parts from different manufacturers meeting or exceeding the core electrical requirements, with potential technology differences (Schottky vs. Standard) that must be evaluated for application-specific impact.

Parameter Comparison

Parameter	FESB16CTHE3_A/I	FESB16DTHM3/I	FESB16CT-E3/81	STPS40170CGY-TR
Manufacturer	Vishay	Vishay	Vishay	STMicroelectronics
Voltage - DC Reverse (Vr) (Max)	150 V	200 V	150 V	170 V
Current - Average Rectified (Io)	16 A	16 A	16 A	20 A (per diode)
Voltage - Forward (Vf) (Max) @ If	975 mV @ 16 A	975 mV @ 16 A	975 mV @ 16 A	920 mV @ 20 A
Reverse Recovery Time (trr)	35 ns	35 ns	35 ns	≤500 ns
Current - Reverse Leakage @ Vr	10 µA @ 150 V	10 µA @ 200 V	10 µA @ 150 V	30 µA @ 170 V
Package / Case	TO-263AB	TO-263AB	TO-263AB	TO-263AB
Operating Temperature - Junction	-65 to 150°C	-65 to 150°C	-65 to 150°C	-40 to 175°C
Technology	Standard	Standard	Standard	Schottky
Grade	Automotive	Automotive	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101	AEC-Q101	AEC-Q101
Product Status	Last Time Buy	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

FESB16DTHM3/I (Manufacturer Recommended Upgrade)

This Vishay part is the primary substitute for the FESB16CTHE3_A/I. It maintains identical current rating (16 A), forward voltage characteristics (975 mV @ 16 A), and reverse recovery time (35 ns) while providing enhanced reverse voltage rating (200 V vs. 150 V). The part is in Active product status, ensuring long-term availability and supply chain stability. It carries identical automotive qualification (AEC-Q101) and RoHS3 compliance. Selection of this part is appropriate for new designs or redesigns where the higher voltage rating provides additional design margin without performance compromise.

FESB16CT-E3/81 (Parametric Equivalent)

This Vishay part is a direct parametric equivalent to the FESB16CTHE3_A/I, with identical electrical specifications across all critical parameters: 150 V reverse voltage, 16 A current rating, 975 mV forward voltage, and 35 ns reverse recovery time. Both parts share the same base product number (FESB16) and automotive qualification. The primary difference is packaging format (Tape & Reel vs. the original part's format). This part is classified as Last Time Buy, indicating limited future availability. Selection is appropriate for direct replacement in existing designs where packaging format compatibility is confirmed.

STPS40170CGY-TR (Cross-Manufacturer Alternative)

This STMicroelectronics part offers higher current capability (20 A per diode vs. 16 A) and enhanced voltage rating (170 V). The device uses Schottky technology rather than Standard technology, resulting in lower forward voltage (920 mV @ 20 A). The part is in Active product status with strong inventory availability (2230 pcs). Operating temperature range extends to 175°C (vs. 150°C maximum junction temperature). This part is suitable for applications where the Schottky technology characteristics (lower forward voltage, higher reverse leakage) are acceptable and where the increased current and voltage ratings provide design flexibility. The diode array configuration (1 Pair Common Cathode) must be evaluated for circuit topology compatibility.

Frequently Asked Questions (FAQ)

Q: Can FESB16DTHM3/I be used as a direct replacement for FESB16CTHE3_A/I?

A: Yes. The FESB16DTHM3/I is electrically compatible with identical current rating (16 A), forward voltage (975 mV @ 16 A), and reverse recovery time (35 ns). The 200 V reverse voltage rating exceeds the 150 V requirement, providing backward compatibility. Both parts use the TO-263AB package and maintain AEC-Q101 automotive qualification. The primary consideration is that FESB16DTHM3/I is in Active product status, ensuring continued availability.

Q: What is the difference between FESB16CTHE3_A/I and FESB16CT-E3/81?

A: These parts are parametric equivalents with identical electrical specifications: 150 V reverse voltage, 16 A current rating, 975 mV forward voltage, and 35 ns reverse recovery time. Both share the same base product number (FESB16) and automotive qualification (AEC-Q101). The difference is packaging format. Both are classified as Last Time Buy, indicating limited future availability.

Q: Why is STPS40170CGY-TR listed as a substitute if it uses different technology?

A: STPS40170CGY-TR is listed as a cross-manufacturer alternative because it meets the core mechanical and functional requirements: TO-263AB package, 16+ A current capability, 150+ V reverse voltage, fast recovery characteristics, and AEC-Q101 qualification. The Schottky technology results in lower forward voltage (920 mV vs. 975 mV) and higher reverse leakage (30 µA vs. 10 µA). These differences must be evaluated for specific application requirements. The part is in Active status with strong availability.

Q: Are all substitute parts automotive-qualified?

A: Yes. All substitute parts listed carry AEC-Q101 automotive qualification and Automotive grade designation, matching the original FESB16CTHE3_A/I specification.

Q: What is the impact of the Schottky technology in STPS40170CGY-TR?

A: Schottky diodes exhibit lower forward voltage drop (920 mV @ 20 A vs. 975 mV @ 16 A for Standard technology), reducing power dissipation. However, Schottky diodes have higher reverse leakage current (30 µA @ 170 V vs. 10 µA @ 150 V). Applications sensitive to reverse leakage or requiring minimal standby current should evaluate this characteristic. The lower forward voltage may reduce thermal management requirements in high-current applications.

Q: Can STPS40170CGY-TR be used in circuits designed for single diodes?

A: STPS40170CGY-TR is configured as a diode array (1 Pair Common Cathode). Circuit topology compatibility must be verified. The common cathode configuration may not be suitable for all single-diode applications. Consult the device datasheet for pinout and internal configuration details before substitution.

Q: What is the significance of Last Time Buy status for FESB16CTHE3_A/I and FESB16CT-E3/81?

A: Last Time Buy status indicates that production has been discontinued and inventory is limited. For long-term design continuity, migration to Active status parts (FESB16DTHM3/I or STPS40170CGY-TR) is recommended. Current inventory levels are 1132 pcs (FESB16CTHE3_A/I) and 1594 pcs (FESB16CT-E3/81).

Q: Are all parts RoHS3 compliant?

A: Yes. All listed parts are ROHS3 compliant and carry Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message