ES3EB-HF General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The ES3EB-HF is an active general purpose rectifier diode manufactured by Comchip Technology, rated for 300V DC reverse voltage and 3A average rectified current in a surface mount SMB/DO-214AA package. This component is designed for standard rectification applications requiring fast recovery characteristics. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or inventory requirements necessitate alternative sourcing from qualified manufacturers meeting identical electrical and mechanical specifications.

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
Current - Reverse Leakage @ Vr	5	µA @ 300 V
Capacitance @ Vr, F	45	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the ES3EB-HF are qualified based on the following critical electrical and mechanical parameters:

Electrical Specifications (Must Match):

Voltage - DC Reverse (Vr) (Max): 300 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 3 A
Reverse Recovery Time (trr): 35 ns
Capacitance @ Vr, F: 45 pF @ 4V, 1MHz

Mechanical Specifications (Must Match):

Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount

Compliance & Environmental (Must Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Operating Temperature - Junction: -55°C to 150°C

The ER3EA_R1_00001 manufactured by Panjit International Inc. meets all specified electrical and mechanical parameters and qualifies as a parametric equivalent for direct substitution in applications requiring a 300V, 3A general purpose rectifier diode in SMB/DO-214AA surface mount packaging.

Parameter Comparison

Parameter	ES3EB-HF (Comchip)	ER3EA_R1_00001 (Panjit)	Match Status
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	Identical
Current - Average Rectified (Io)	3 A	3 A	Identical
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 3 A	1.25 V @ 3 A	Identical
Reverse Recovery Time (trr)	35 ns	35 ns	Identical
Current - Reverse Leakage @ Vr	5 µA @ 300 V	1 µA @ 300 V	Equivalent (ER3EA superior)
Capacitance @ Vr, F	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	Identical
Package / Case	DO-214AA, SMB	DO-214AA, SMB	Identical
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Active	Active	Identical

Engineering Selection Recommendations

Both the ES3EB-HF and ER3EA_R1_00001 are active products with ROHS3 compliance and MSL Level 1 rating, qualifying them for equivalent use in 300V, 3A rectification applications. The ER3EA_R1_00001 demonstrates superior reverse leakage current performance (1 µA versus 5 µA at 300V), which may provide operational advantages in low-leakage circuit designs while maintaining all other electrical and mechanical specifications. Both components support the full operating temperature range of -55°C to 150°C junction temperature and are packaged in identical DO-214AA/SMB surface mount configurations suitable for automated assembly processes. Selection between these parts should be based on availability, lead time, and procurement cost considerations, as electrical performance and compliance requirements are equivalent.

Frequently Asked Questions (FAQ)

Q: Can the ER3EA_R1_00001 be used as a direct replacement for the ES3EB-HF in existing designs?

A: Yes. The ER3EA_R1_00001 meets all electrical specifications (300V reverse voltage, 3A average rectified current, 1.25V forward voltage, 35ns reverse recovery time) and is packaged in the identical DO-214AA/SMB surface mount configuration. No circuit modifications or PCB layout changes are required.

Q: Are there differences in reverse leakage current between these parts?

A: The ER3EA_R1_00001 specifies 1 µA reverse leakage at 300V, compared to 5 µA for the ES3EB-HF. Both values are within acceptable ranges for general purpose rectification. The lower leakage of the ER3EA_R1_00001 may be beneficial in applications sensitive to leakage current.

Q: Do both parts have identical thermal operating ranges?

A: Yes. Both the ES3EB-HF and ER3EA_R1_00001 support junction temperature operation from -55°C to 150°C and carry MSL Level 1 (Unlimited) moisture sensitivity ratings.

Q: Are both parts RoHS compliant?

A: Yes. Both the ES3EB-HF and ER3EA_R1_00001 are ROHS3 compliant and suitable for applications requiring lead-free component qualification.

Q: What is the significance of the SMB/DO-214AA package designation?

A: SMB (Surface Mount Body) and DO-214AA refer to the same industry-standard surface mount diode package. Both parts use this identical package, ensuring compatibility with existing PCB footprints and automated assembly equipment.

Q: Can these parts be used interchangeably in high-frequency switching applications?

A: Both parts specify identical reverse recovery time (35 ns) and fast recovery characteristics (≤500ns for currents >200mA), qualifying them for equivalent use in fast recovery rectification applications.

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