Equivalent & Substitute Parts for ES3FHE3/9AT

Part Overview

The ES3FHE3/9AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 300 V DC reverse voltage and 3 A average rectified current in a DO-214AB (SMC) surface mount package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and production continuity. The device features fast recovery characteristics with a 50 ns reverse recovery time and automotive-grade qualification per AEC-Q101, making it suitable for power supply and rectification applications in automotive and industrial environments.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 3 A	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	10 @ 300 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the ES3FHE3/9AT is determined by strict equivalence across the following critical parameters: voltage rating (300 V DC reverse), current rating (3 A average rectified), forward voltage drop (1.1 V @ 3 A), reverse recovery time (50 ns), reverse leakage current (10 µA @ 300 V), package type (DO-214AB SMC), and mounting configuration (surface mount). All substitute parts must maintain identical electrical performance within these specifications to ensure functional compatibility in the original application circuit.

The substitute parts are grouped into two categories:

Direct Equivalents (Vishay ES3F Series): Parts ES3FHE3_A/I, ES3F-E3/57T, ES3F-E3/9AT, ES3F-M3/57T, ES3F-M3/9AT, and ES3FHE3_A/H are parametrically identical to the main part across all critical electrical and mechanical parameters. These parts differ only in packaging configuration (Tape & Reel) and product status (Active vs. Obsolete), making them direct functional replacements.

Parametric Variant (Microchip UFS530J/TR13): The UFS530J/TR13 shares the same voltage rating (300 V), package type (DO-214AB), and speed classification (fast recovery, 50 ns trr) but differs in current rating (5 A vs. 3 A) and forward voltage (1.2 V @ 5 A vs. 1.1 V @ 3 A). This part is suitable for applications where higher current capacity is acceptable or beneficial.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [ns]	Ir @ Vr [µA]	Package	Status	RoHS
ES3FHE3/9AT	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	Obsolete	ROHS3
ES3FHE3_A/I	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	Active	ROHS3
ES3F-E3/57T	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	Active	ROHS3
ES3F-E3/9AT	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	Active	ROHS3
ES3F-M3/57T	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	Active	ROHS3
ES3F-M3/9AT	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	Active	ROHS3
ES3FHE3_A/H	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	Active	ROHS3
UFS530J/TR13	Microchip	300	5	1.2 @ 5A	50	10 @ 300V	DO-214AB	Active	Non-compliant

Engineering Selection Recommendations

Primary Substitutes: The Vishay ES3F series parts (ES3FHE3_A/I, ES3F-E3/57T, ES3F-E3/9AT, ES3F-M3/57T, ES3F-M3/9AT, and ES3FHE3_A/H) are recommended as direct replacements for the obsolete ES3FHE3/9AT. All six parts maintain identical electrical specifications and are ROHS3 compliant. These parts are currently in active production status, ensuring long-term availability and supply chain continuity. The ES3F-E3/57T variant offers the highest inventory level (15,750 pcs), providing optimal procurement flexibility.

Secondary Substitute: The Microchip UFS530J/TR13 is suitable for applications where increased current capacity (5 A vs. 3 A) is acceptable or required. This part maintains the same voltage rating, package type, and reverse recovery time. However, the UFS530J/TR13 is RoHS non-compliant and exhibits a higher forward voltage drop (1.2 V @ 5 A), which may impact thermal performance in power-sensitive applications. Selection of this part requires confirmation that the higher current rating and forward voltage characteristics are compatible with the circuit design.

Automotive Applications: For designs requiring automotive-grade qualification per AEC-Q101, the ES3FHE3_A/H variant is specified with automotive grade designation and maintains full AEC-Q101 qualification, ensuring compliance with automotive reliability and qualification standards.

Frequently Asked Questions (FAQ)

Q: Can ES3F-E3/57T be used as a direct replacement for ES3FHE3/9AT?

A: Yes. The ES3F-E3/57T is parametrically identical to the ES3FHE3/9AT across all critical electrical parameters: 300 V reverse voltage, 3 A average rectified current, 1.1 V forward voltage drop, 50 ns reverse recovery time, and 10 µA reverse leakage current. Both parts use the DO-214AB surface mount package. The primary difference is product status (Active vs. Obsolete) and packaging configuration (Tape & Reel vs. standard packaging).

Q: What is the difference between ES3F-E3/57T and ES3F-M3/57T?

A: Both parts are parametrically equivalent with identical electrical specifications and package type. The designation difference (E3 vs. M3) reflects internal manufacturing or qualification variations within the Vishay ES3F product line. Both are active, ROHS3 compliant, and suitable for direct substitution of the ES3FHE3/9AT.

Q: Is the UFS530J/TR13 a suitable replacement for ES3FHE3/9AT?

A: The UFS530J/TR13 shares the same voltage rating (300 V), package type (DO-214AB), and reverse recovery time (50 ns). However, it is rated for 5 A average rectified current versus 3 A for the ES3FHE3/9AT, and exhibits a higher forward voltage drop (1.2 V @ 5 A vs. 1.1 V @ 3 A). This part is suitable only if the application circuit can accommodate the higher current rating and increased forward voltage drop. The UFS530J/TR13 is RoHS non-compliant, which may restrict use in regulated markets.

Q: Why is the ES3FHE3/9AT classified as obsolete?

A: The ES3FHE3/9AT is listed as obsolete, indicating it is no longer in active production. Active equivalent parts within the Vishay ES3F series are available to support design continuity and production requirements.

Q: Are all substitute parts ROHS3 compliant?

A: All Vishay ES3F series substitutes (ES3FHE3_A/I, ES3F-E3/57T, ES3F-E3/9AT, ES3F-M3/57T, ES3F-M3/9AT, and ES3FHE3_A/H) are ROHS3 compliant. The Microchip UFS530J/TR13 is RoHS non-compliant and may not be suitable for applications subject to RoHS regulations.

Q: What is the difference between Tape & Reel and standard packaging?

A: Tape & Reel (TR) packaging is configured for automated pick-and-place assembly processes, with components wound on continuous tape for high-volume production. Standard packaging may include alternative configurations. All substitute parts listed are available in Tape & Reel format, suitable for surface mount assembly operations.

Q: Can ES3FHE3_A/H be used in automotive applications?

A: Yes. The ES3FHE3_A/H is specified with automotive grade designation and maintains AEC-Q101 qualification, meeting automotive reliability and qualification requirements. This variant is recommended for automotive circuit applications requiring certified component qualification.

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

A: The Vishay ES3F series substitutes operate across a junction temperature range of -55°C to 150°C. The Microchip UFS530J/TR13 operates across -55°C to 175°C, providing an extended upper temperature limit. Selection should be based on the specific thermal requirements of the application circuit.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message