ES1JFL Equivalent & Substitute Parts

Part Overview

The ES1JFL is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 1 A average rectified current in a Surface Mount SOD-123F package. Manufactured by onsemi, this component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product portfolio. Identifying equivalent and substitute parts is necessary for ongoing production support, legacy system maintenance, and design flexibility when the primary part becomes unavailable or when alternative sourcing is required.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.7 @ 1 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	500 nA @ 600 V	nA
Mounting Type	Surface Mount	—
Package / Case	SOD-123F	—
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 ES1JFL are grouped based on strict electrical and mechanical compatibility criteria. All substitute parts must meet or exceed the following key parameters:

Voltage Rating: 600 V DC reverse voltage (Vr) minimum
Current Rating: 1 A average rectified current (Io) minimum
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Surface Mount
Temperature Range: Operating junction temperature of -55°C to 150°C minimum
Compliance: ROHS3 Compliant, MSL 1 (Unlimited)

Substitute parts are classified into two categories:

Parametric Equivalents maintain identical or equivalent electrical characteristics and package form factors, enabling direct substitution in most applications.

Package Variant Substitutes provide equivalent electrical performance but utilize alternative surface mount package designations (SOD-123FL vs. SOD-123F, or DO-219AB), requiring mechanical verification for PCB layout compatibility.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 1A [V]	trr [ns]	Reverse Leakage @ 600V	Package	Temp Range [°C]	Product Status
ES1JFL	onsemi	600	1	1.7	35	500 nA	SOD-123F	-55 to 150	Not For New Designs
ES1006FL_R1_00001	Panjit International Inc.	600	1	1.7	35	500 nA	SOD-123F	-55 to 150	Active
ES1JFL	Taiwan Semiconductor Corporation	600	1	1.7	35	5 µA	SOD-123F	-55 to 150	Active
UG1JPL-TP	Micro Commercial Co	600	1	1.7	35	5 µA	SOD-123F	-55 to 150	Active
US1006FL_R1_00001	Panjit International Inc.	600	1	1.7	100	1 µA	SOD-123F	-55 to 150	Active
VS-1EFU06-M3/I	Vishay General Semiconductor - Diodes Division	600	1	1.2	32	3 µA	DO-219AB	-55 to 175	Active

Engineering Selection Recommendations

Primary Parametric Equivalents: ES1006FL_R1_00001 (Panjit International Inc.) and UG1JPL-TP (Micro Commercial Co) provide direct electrical and mechanical equivalence to the onsemi ES1JFL. Both parts are Active status products with identical voltage, current, and recovery time specifications. These parts are suitable for direct substitution without circuit redesign.

Alternative Equivalent: ES1JFL manufactured by Taiwan Semiconductor Corporation maintains identical electrical specifications and package form factor with Active product status. This part is suitable for direct substitution.

Performance-Enhanced Substitute: US1006FL_R1_00001 (Panjit International Inc.) meets all voltage and current requirements with improved reverse leakage characteristics (1 µA vs. 500 nA). The reverse recovery time is 100 ns, which exceeds the Fast Recovery classification threshold of 500 ns. This part is suitable for applications where extended recovery time is acceptable.

Package Variant Substitute: VS-1EFU06-M3/I (Vishay General Semiconductor - Diodes Division) provides equivalent electrical performance with superior forward voltage (1.2 V vs. 1.7 V) and faster recovery time (32 ns). The package is DO-219AB (SMF) instead of SOD-123F, requiring PCB layout verification. Operating temperature range extends to 175°C. This part is suitable for applications where thermal performance or reduced forward voltage drop is beneficial and package footprint compatibility is confirmed.

All substitute parts are ROHS3 Compliant with MSL 1 (Unlimited) rating, matching the compliance profile of the original ES1JFL.

Frequently Asked Questions (FAQ)

Q: Can ES1006FL_R1_00001 be used as a direct replacement for ES1JFL?

A: Yes. ES1006FL_R1_00001 maintains identical electrical specifications (600 V, 1 A, 1.7 V forward voltage, 35 ns recovery time) and uses the same SOD-123F package. The part is Active status and ROHS3 compliant. Direct substitution is supported without circuit modification.

Q: What is the difference between SOD-123F and SOD-123FL package designations?

A: SOD-123F and SOD-123FL are functionally equivalent surface mount packages with identical electrical performance and mechanical footprints. The designations reflect supplier package nomenclature variations. Both are compatible with standard SOD-123F PCB layouts.

Q: Why does US1006FL_R1_00001 have a longer reverse recovery time (100 ns) than the original ES1JFL (35 ns)?

A: US1006FL_R1_00001 is classified as Standard speed rather than Fast Recovery. While it meets the 600 V and 1 A requirements, the extended recovery time may impact switching performance in high-frequency applications. This part is suitable for applications where recovery time is not a critical parameter.

Q: Is VS-1EFU06-M3/I compatible with existing PCB layouts designed for ES1JFL?

A: VS-1EFU06-M3/I uses the DO-219AB (SMF) package instead of SOD-123F. Physical footprint verification is required before substitution. The electrical specifications are equivalent or superior (1.2 V forward voltage, 32 ns recovery time, extended temperature range to 175°C). PCB layout compatibility must be confirmed with the design documentation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant with MSL 1 (Unlimited) rating, matching the compliance requirements of the original ES1JFL.

Q: Which substitute part offers the best thermal performance?

A: VS-1EFU06-M3/I (Vishay) provides the widest operating temperature range (-55°C to 175°C) compared to the original ES1JFL (-55°C to 150°C). This part also features the lowest forward voltage (1.2 V) and fastest recovery time (32 ns), resulting in reduced power dissipation and improved switching characteristics.

Q: Can multiple substitute parts be used interchangeably in the same design?

A: ES1006FL_R1_00001, UG1JPL-TP, and ES1JFL (Taiwan Semiconductor Corporation) are fully interchangeable due to identical electrical and package specifications. US1006FL_R1_00001 and VS-1EFU06-M3/I have different electrical characteristics (recovery time, forward voltage) and package form factors respectively, requiring individual evaluation for specific circuit requirements.

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