FESB16DTHE3_A/P Equivalent & Substitute Parts

Part Overview

The FESB16DTHE3_A/P is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 200 V DC reverse voltage with a 16 A average rectified current rating and features fast recovery characteristics with a 35 ns reverse recovery time. The device is housed in a TO-263AB (D2PAK) package and is qualified to AEC-Q101 automotive standards.

The FESB16DTHE3_A/P is designated as Last Time Buy, indicating that the manufacturer has discontinued or will discontinue production. Identifying equivalent and substitute parts is necessary to ensure continued component availability for new designs, production continuity, and long-term supply chain management.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	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 @ 200 V
Capacitance @ Vr, F	175	pF @ 4V, 1MHz
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

Substitution of the FESB16DTHE3_A/P is determined by the following critical parameters:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 16 A minimum
Voltage - Forward (Vf) (Max) @ If: 975 mV maximum @ 16 A
Reverse Recovery Time (trr): 35 ns maximum
Current - Reverse Leakage @ Vr: 10 µA maximum @ 200 V

Mechanical Parameters:

Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount

Compliance Parameters:

Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Category 1 - Manufacturer Recommended Equivalents: Parts that match all electrical and mechanical parameters with identical or superior specifications, maintaining the same technology type (Standard rectifier diode).

Category 2 - Parametric Equivalents: Parts that meet or exceed the electrical performance requirements and share the same package, but may differ in technology type, configuration, or other secondary characteristics.

Parameter Comparison

Parameter	FESB16DTHE3_A/P	FESB16DTHM3/I	FESB16DT-E3/45	STPS40170CGY-TR
Manufacturer	Vishay	Vishay	Vishay	STMicroelectronics
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 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 @ 200 V	10 µA @ 200 V	10 µA @ 200 V	30 µA @ 170 V
Capacitance @ Vr, F	175 pF @ 4V, 1MHz	175 pF @ 4V, 1MHz	175 pF @ 4V, 1MHz	Not specified
Technology	Standard	Standard	Standard	Schottky
Diode Configuration	Single	Single	Single	1 Pair Common Cathode
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Operating Temperature - Junction	-65 to 150°C	-65 to 150°C	-65 to 150°C	-40 to 175°C
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	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

FESB16DTHM3/I (Manufacturer Recommended Equivalent)

The FESB16DTHM3/I is the primary substitute for the FESB16DTHE3_A/P. This part maintains identical electrical specifications across all critical parameters: 200 V reverse voltage, 16 A average rectified current, 975 mV forward voltage drop, 35 ns reverse recovery time, and 10 µA reverse leakage current. Both devices employ Standard rectifier diode technology and are housed in the TO-263AB (D2PAK) package. The FESB16DTHM3/I holds Active product status, ensuring continued availability and supply chain stability. Both parts carry AEC-Q101 automotive qualification and are ROHS3 compliant. This substitute provides direct functional and mechanical compatibility with no design modifications required.

FESB16DT-E3/45 (Parametric Equivalent)

The FESB16DT-E3/45 is a parametric equivalent manufactured by Vishay. This part matches all electrical specifications of the FESB16DTHE3_A/P and shares the same TO-263AB (D2PAK) package. The FESB16DT-E3/45 is designated Last Time Buy, similar to the original part. Both devices are Standard rectifier diodes with identical performance characteristics. This substitute is suitable for direct replacement in existing designs. However, the Last Time Buy status indicates that long-term availability may be limited, making the FESB16DTHM3/I the preferred choice for new production.

STPS40170CGY-TR (Parametric Equivalent with Limitations)

The STPS40170CGY-TR is manufactured by STMicroelectronics and shares the TO-263AB (D2PAK) package with the original part. This device is a Schottky diode array with a 1 Pair Common Cathode configuration, differing fundamentally from the single Standard rectifier diode topology of the FESB16DTHE3_A/P. The STPS40170CGY-TR operates at 170 V maximum reverse voltage (30 V lower than the original specification) and provides 20 A per diode (4 A higher than required). Forward voltage drop is 920 mV @ 20 A, which is lower than the original 975 mV @ 16 A. Reverse leakage current is 30 µA @ 170 V, compared to 10 µA @ 200 V for the original part. The STPS40170CGY-TR holds Active product status and carries AEC-Q101 qualification. This substitute is applicable only in applications where the reduced reverse voltage rating is acceptable, the diode array configuration is compatible with the circuit topology, and the higher reverse leakage current does not compromise system performance. Circuit redesign may be required.

Frequently Asked Questions (FAQ)

Q: Can the FESB16DTHM3/I be used as a direct replacement for the FESB16DTHE3_A/P?

A: Yes. The FESB16DTHM3/I is electrically and mechanically identical to the FESB16DTHE3_A/P. All critical parameters—reverse voltage, forward current, forward voltage drop, reverse recovery time, and reverse leakage current—are matched. Both devices use the TO-263AB (D2PAK) package and are AEC-Q101 qualified. No circuit modifications or design changes are required.

Q: What is the difference between the FESB16DTHE3_A/P and FESB16DT-E3/45?

A: Both parts are Standard rectifier diodes manufactured by Vishay with identical electrical specifications and the same TO-263AB (D2PAK) package. The primary difference is product status: FESB16DTHE3_A/P is Last Time Buy, while FESB16DT-E3/45 is also Last Time Buy. Both parts are functionally equivalent and interchangeable. The FESB16DTHM3/I, with Active status, is the recommended long-term substitute.

Q: Why is the STPS40170CGY-TR listed as a substitute if it has different electrical specifications?

A: The STPS40170CGY-TR meets the core mechanical requirement (TO-263AB package) and exceeds the current rating (20 A vs. 16 A). However, it operates at a lower reverse voltage (170 V vs. 200 V) and uses Schottky technology with a different diode configuration (1 Pair Common Cathode array vs. single diode). This substitute is applicable only in applications where the reduced voltage rating is acceptable and the diode array topology is compatible with the circuit design. Applications requiring the full 200 V reverse voltage rating must use FESB16DTHM3/I or FESB16DT-E3/45.

Q: Are all substitute parts automotive qualified?

A: Yes. All substitute parts listed—FESB16DTHM3/I, FESB16DT-E3/45, and STPS40170CGY-TR—carry AEC-Q101 automotive qualification and are suitable for automotive applications.

Q: What is the significance of the Last Time Buy status?

A: Last Time Buy indicates that the manufacturer has announced the end of production for that part number. Existing inventory may be available, but future production is not guaranteed. For long-term supply chain security, migration to Active status parts such as FESB16DTHM3/I is recommended.

Q: Can the STPS40170CGY-TR be used in a 200 V application?

A: No. The STPS40170CGY-TR is rated for a maximum reverse voltage of 170 V. Using this part in a 200 V application exceeds its voltage rating and may result in device failure or degraded performance. Applications requiring 200 V operation must use FESB16DTHM3/I or FESB16DT-E3/45.

Q: Are there any package differences between the substitute parts?

A: All substitute parts use the TO-263-3, D2PAK (2 Leads + Tab), TO-263AB package. Mechanical compatibility is maintained across all substitutes. No PCB layout modifications are required.

Q: What is the difference between Standard and Schottky rectifier diodes?

A: Standard rectifier diodes (used in FESB16DTHE3_A/P, FESB16DTHM3/I, and FESB16DT-E3/45) and Schottky diodes (used in STPS40170CGY-TR) differ in construction and performance characteristics. Schottky diodes typically exhibit lower forward voltage drop and faster switching, but higher reverse leakage current. The STPS40170CGY-TR demonstrates these characteristics with 920 mV forward voltage (vs. 975 mV) and 30 µA reverse leakage (vs. 10 µA). Technology selection depends on circuit requirements for power dissipation, switching speed, and leakage current tolerance.

Q: Is the FESB16DTHM3/I RoHS compliant?

A: The FESB16DTHM3/I RoHS status is not specified in the provided data. The FESB16DTHE3_A/P and FESB16DT-E3/45 are confirmed ROHS3 compliant. Verification of RoHS compliance for FESB16DTHM3/I should be obtained from the manufacturer or authorized distributor.

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