ES3J Equivalent & Substitute Parts

Part Overview

The ES3J is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 3 A average rectified current in a Surface Mount DO-214AB (SMC) package. Manufactured by SMC Diode Solutions, this component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design and procurement requirements. The ES3J operates across a junction temperature range of -55°C to 150°C and features fast recovery characteristics with a reverse recovery time of 35 nanoseconds.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.7 @ 3 A	V
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Capacitance @ Vr, F	45	pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the ES3J is determined by electrical and mechanical parameter equivalence within the following criteria:

Primary Equivalence Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 1.7 V @ 3 A
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount

Secondary Consideration Parameters:

Reverse Recovery Time (trr): 35 ns (fast recovery classification)
Current - Reverse Leakage @ Vr: 5 µA @ 600 V
Capacitance @ Vr, F: 45 pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C to 150°C

Substitute parts are grouped into two categories:

Direct Manufacturer Equivalents: Parts from the original manufacturer (SMC Diode Solutions) that maintain identical electrical specifications and packaging.

Parametric Equivalents: Parts from alternative manufacturers (Panjit International Inc., Taiwan Semiconductor Corporation) that meet or exceed the primary equivalence parameters. Parametric equivalents may exhibit variations in secondary parameters such as reverse leakage current, capacitance, or reverse recovery time, provided these variations remain within acceptable operational bounds for the application.

Parameter Comparison

Parameter	ES3J	ER3J	ER3J_R1_00001	ES3J V7G	ES3JH	UF3J_R1_00001
Manufacturer	SMC Diode Solutions	SMC Diode Solutions	Panjit International Inc.	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Panjit International Inc.
Product Status	Obsolete	Active	Active	Discontinued at DiGi Electronics	Active	Active
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 3 A	1.7 V @ 3 A	1.7 V @ 3 A	1.7 V @ 3 A	1.7 V @ 3 A	1.7 V @ 3 A
Reverse Recovery Time (trr)	35 ns	35 ns	35 ns	35 ns	35 ns	100 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V	1 µA @ 600 V	10 µA @ 600 V	10 µA @ 600 V	1 µA @ 600 V
Capacitance @ Vr, F	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	63 pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Operating Temperature - Junction	-55 to 150 °C	-65 to 150 °C	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C
Packaging	—	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR)
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Qualification	—	—	—	—	AEC-Q101	—
Inventory Status	23710 Pcs	16400 Pcs	42000 Pcs	2284 Pcs	3746 Pcs	4100 Pcs

Engineering Selection Recommendations

ER3J (SMC Diode Solutions): This direct manufacturer equivalent from SMC Diode Solutions maintains identical electrical specifications to the ES3J while offering active product status. The ER3J is supplied in Tape & Reel packaging and is RoHS3 compliant. The extended operating temperature range (-65°C to 150°C) provides additional thermal margin. This part is the preferred direct substitute when SMC Diode Solutions sourcing is required.

ER3J_R1_00001 (Panjit International Inc.): This parametric equivalent meets all primary electrical specifications with improved reverse leakage current (1 µA versus 5 µA). The part is active, RoHS3 compliant, and available in high inventory (42000 Pcs). The identical reverse recovery time (35 ns) and capacitance (45 pF) ensure functional equivalence. This part is suitable for applications where reverse leakage performance is a design consideration.

ES3JH (Taiwan Semiconductor Corporation): This parametric equivalent is AEC-Q101 qualified, making it suitable for automotive applications. The part maintains identical electrical specifications with the exception of reverse leakage current (10 µA) and capacitance (30 pF). Active product status and RoHS3 compliance are confirmed. Selection of ES3JH is appropriate for automotive-grade designs requiring AEC-Q101 qualification.

ES3J V7G (Taiwan Semiconductor Corporation): This parametric equivalent is discontinued at DiGi Electronics, limiting long-term procurement viability. While electrically equivalent in primary parameters, the higher reverse leakage current (10 µA) and lower capacitance (30 pF) represent secondary parameter variations. This part is not recommended for new designs due to discontinued status.

UF3J_R1_00001 (Panjit International Inc.): This parametric equivalent exhibits a longer reverse recovery time (100 ns versus 35 ns), which represents a significant deviation from the fast recovery classification of the ES3J. The improved reverse leakage current (1 µA) and higher capacitance (63 pF) are secondary considerations. This part is suitable only for applications where reverse recovery time is not a critical design parameter.

Frequently Asked Questions (FAQ)

Q: Can ER3J be used as a direct replacement for ES3J?

A: Yes. The ER3J is a direct manufacturer equivalent from SMC Diode Solutions with identical electrical specifications (600 V, 3 A, 1.7 V forward voltage, 35 ns reverse recovery time). The primary difference is product status: ER3J is active while ES3J is obsolete. ER3J is supplied in Tape & Reel packaging and offers an extended operating temperature range of -65°C to 150°C.

Q: What is the difference between direct manufacturer equivalents and parametric equivalents?

A: Direct manufacturer equivalents are parts from the original manufacturer (SMC Diode Solutions) that maintain identical electrical specifications and packaging. Parametric equivalents are parts from alternative manufacturers that meet primary electrical specifications (600 V, 3 A, 1.7 V forward voltage) but may exhibit variations in secondary parameters such as reverse leakage current, capacitance, or reverse recovery time.

Q: Which substitute part has the best reverse leakage performance?

A: Both ER3J_R1_00001 and UF3J_R1_00001 offer improved reverse leakage current of 1 µA at 600 V, compared to 5 µA for the ES3J. ER3J_R1_00001 maintains the 35 ns reverse recovery time specification, while UF3J_R1_00001 has a longer reverse recovery time of 100 ns.

Q: Is ES3JH suitable for automotive applications?

A: Yes. ES3JH is AEC-Q101 qualified, making it suitable for automotive-grade designs. The part maintains electrical equivalence with the ES3J in primary parameters and is RoHS3 compliant. The reverse leakage current is 10 µA and capacitance is 30 pF.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) packaging. ER3J, ER3J_R1_00001, ES3JH, and UF3J_R1_00001 are supplied in Tape & Reel. ES3J V7G is supplied in Cut Tape. Packaging selection depends on assembly process requirements and procurement volume.

Q: Why does UF3J_R1_00001 have a longer reverse recovery time?

A: UF3J_R1_00001 has a reverse recovery time of 100 ns compared to 35 ns for the ES3J. This represents a different diode technology classification. UF3J_R1_00001 is suitable only for applications where reverse recovery time is not a critical design parameter.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts (ER3J, ER3J_R1_00001, ES3JH, and UF3J_R1_00001) are RoHS3 compliant. ES3J V7G is also RoHS3 compliant but is discontinued at DiGi Electronics.

Q: What is the inventory status of substitute parts?

A: ER3J_R1_00001 has the highest inventory at 42000 Pcs. ER3J has 16400 Pcs. ES3JH has 3746 Pcs. UF3J_R1_00001 has 4100 Pcs. ES3J V7G has limited inventory at 2284 Pcs and is discontinued at DiGi Electronics.

Q: Can substitute parts be used interchangeably in all applications?

A: Substitute parts are electrically equivalent in primary parameters (600 V, 3 A, 1.7 V forward voltage) and share identical packaging (DO-214AB, SMC). However, variations in secondary parameters such as reverse recovery time, reverse leakage current, and capacitance must be evaluated against specific application requirements before selection.

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