ES3EC-HF Equivalent & Substitute Parts

Part Overview

The ES3EC-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 300 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.25 @ 3 A	V
Reverse Recovery Time (trr)	35	ns
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the ES3EC-HF with the ER3E_R1_00001 is based on electrical and mechanical parameter equivalence. Both components share identical ratings for voltage (300 V DC reverse), current (3 A average rectified), forward voltage drop (1.25 V @ 3 A), reverse recovery time (35 ns), and speed classification (Fast Recovery ≤ 500ns, > 200mA). Both are packaged in DO-214AB (SMC) surface mount configuration and operate across the same junction temperature range (-55°C to 150°C). Both components are RoHS3 compliant and classified as Active products. The substitute part is qualified for direct replacement based on these matching electrical and mechanical specifications.

Parameter Comparison

Parameter	ES3EC-HF (Comchip)	ER3E_R1_00001 (Panjit)	Match Status
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	Equivalent
Current - Average Rectified (Io)	3 A	3 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 3 A	1.25 V @ 3 A	Equivalent
Reverse Recovery Time (trr)	35 ns	35 ns	Equivalent
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Equivalent
Current - Reverse Leakage @ Vr	5 µA @ 300 V	1 µA @ 300 V	Substitute Superior
Capacitance @ Vr, F	40 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	Within Tolerance
Package / Case	DO-214AB, SMC	DO-214AB, SMC	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Both the ES3EC-HF and ER3E_R1_00001 are Active products with ROHS3 compliance and identical electrical ratings. The ER3E_R1_00001 demonstrates lower reverse leakage current (1 µA versus 5 µA at 300 V), which represents improved performance in this parameter. Capacitance values are within acceptable tolerance (40 pF versus 45 pF at 4V, 1MHz). Both components are suitable for applications requiring 300 V, 3 A general-purpose rectification in surface mount configurations. Selection between these parts is determined by availability, supply chain requirements, and design flexibility considerations, as electrical performance is equivalent across all critical parameters.

Frequently Asked Questions (FAQ)

Q: Can the ER3E_R1_00001 be used as a direct replacement for the ES3EC-HF?

A: Yes. Both components share identical voltage ratings (300 V DC reverse), current ratings (3 A average rectified), forward voltage characteristics (1.25 V @ 3 A), reverse recovery time (35 ns), and package configuration (DO-214AB, SMC surface mount). Operating temperature ranges and compliance certifications are also identical.

Q: Are there differences in electrical performance between these parts?

A: The ER3E_R1_00001 exhibits lower reverse leakage current (1 µA versus 5 µA at 300 V), which is a performance advantage. Capacitance values differ slightly (45 pF versus 40 pF at 4V, 1MHz) but remain within acceptable tolerance for general-purpose rectifier applications.

Q: Do both parts use the same package?

A: Yes. Both the ES3EC-HF and ER3E_R1_00001 are packaged in DO-214AB (SMC) surface mount configuration with identical mechanical dimensions and land pattern requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both components are ROHS3 compliant and suitable for applications requiring environmental compliance certification.

Q: What is the operating temperature range for these diodes?

A: Both components operate across a junction temperature range of -55°C to 150°C, providing equivalent thermal performance specifications.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Identical package designation (DO-214AB, SMC) and surface mount configuration ensure mechanical and electrical interchangeability in PCB assembly processes without modification to footprints or assembly procedures.

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