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ES1J Equivalent & Substitute Parts Reference
Part Overview
The ES1J is an active production surface mount rectifier diode manufactured by Diotec Semiconductor. This component is a superfast recovery diode rated for 600 V DC reverse voltage with 1 A average rectified current and 35 ns reverse recovery time. The device is packaged in DO-214AC (SMA) format and is RoHS3 compliant.
Equivalent and substitute parts are identified for applications requiring compatible electrical performance, identical package specifications, and interchangeable mounting characteristics. Substitute parts maintain the core electrical ratings while offering alternative sourcing options or enhanced specifications from different manufacturers.
Substiute Parts
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 |
| Reverse Recovery Time (trr) | 35 | ns |
| Current - Reverse Leakage @ Vr | 5 | µA @ 600 V |
| Package / Case | DO-214AC, SMA | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature - Junction | -50°C ~ 150°C | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitute parts for the ES1J are classified based on strict electrical and mechanical compatibility criteria. All substitute parts maintain the following core parameters:
- Voltage - DC Reverse (Vr) (Max): 600 V
- Current - Average Rectified (Io): 1 A
- Voltage - Forward (Vf) (Max) @ If: 1.7 V @ 1 A
- Package / Case: DO-214AC, SMA
- Mounting Type: Surface Mount
- Technology: Standard
- RoHS Status: ROHS3 Compliant
Substitute parts are grouped into two categories:
Upgrade Substitute: ES1JH (Taiwan Semiconductor Corporation) provides automotive-grade qualification (AEC-Q101) with identical electrical specifications and extended temperature range (-55°C ~ 150°C).
Similar Substitutes: ES1J_R1_00001 (Panjit International Inc.) and US1J-TP (Micro Commercial Co) maintain core electrical ratings with variations in secondary parameters including reverse recovery time, reverse leakage current, capacitance, and operating temperature range.
Parameter Comparison
| Parameter | ES1J (Diotec) | ES1JH (Taiwan Semi) | ES1J_R1_00001 (Panjit) | US1J-TP (Micro Commercial) |
|---|---|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 600 V | 600 V | 600 V | 600 V |
| Current - Average Rectified (Io) | 1 A | 1 A | 1 A | 1 A |
| Voltage - Forward (Vf) (Max) @ If | 1.7 V @ 1 A | 1.7 V @ 1 A | 1.7 V @ 1 A | 1.7 V @ 1 A |
| Reverse Recovery Time (trr) | 35 ns | 35 ns | 35 ns | 75 ns |
| Current - Reverse Leakage @ Vr | 5 µA @ 600 V | 5 µA @ 600 V | 1 µA @ 600 V | 10 µA @ 600 V |
| Capacitance @ Vr, F | — | 16 pF @ 4V, 1MHz | 7 pF @ 4V, 1MHz | 10 pF @ 4V, 1MHz |
| Package / Case | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature - Junction | -50°C ~ 150°C | -55°C ~ 150°C | -55°C ~ 150°C | -65°C ~ 175°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Grade | Standard | Automotive | Standard | Standard |
| Qualification | — | AEC-Q101 | — | — |
Engineering Selection Recommendations
ES1JH (Taiwan Semiconductor Corporation): This part is designated as an upgrade substitute. It maintains identical electrical specifications to the ES1J while providing automotive-grade qualification per AEC-Q101 and an extended lower operating temperature limit (-55°C versus -50°C). The ES1JH is suitable for applications requiring automotive compliance or operation in extended temperature environments.
ES1J_R1_00001 (Panjit International Inc.): This part is a similar substitute with identical core electrical ratings. It features improved reverse leakage current (1 µA versus 5 µA) and lower capacitance (7 pF versus unspecified). The extended operating temperature range (-55°C ~ 150°C) provides additional thermal margin. This part is suitable for general-purpose applications where lower leakage is beneficial.
US1J-TP (Micro Commercial Co): This part is a similar substitute with core electrical compatibility. It features a longer reverse recovery time (75 ns versus 35 ns) and higher reverse leakage current (10 µA versus 5 µA). The extended operating temperature range (-65°C ~ 175°C) provides the widest thermal operating window. This part is suitable for applications where extended temperature operation is required and the longer recovery time is acceptable.
All substitute parts are RoHS3 compliant and maintain identical package and mounting specifications (DO-214AC, SMA, Surface Mount).
Frequently Asked Questions (FAQ)
Q: Can ES1JH be used as a direct replacement for ES1J?
A: Yes. The ES1JH maintains identical electrical specifications (600 V, 1 A, 1.7 V forward voltage, 35 ns recovery time) and identical package format (DO-214AC, SMA). The ES1JH provides automotive-grade qualification and extended temperature range as additional benefits.
Q: What is the primary difference between ES1J_R1_00001 and the original ES1J?
A: The ES1J_R1_00001 maintains identical core electrical ratings but features lower reverse leakage current (1 µA versus 5 µA) and lower capacitance (7 pF versus unspecified). Both parts have identical reverse recovery time (35 ns) and forward voltage specifications.
Q: Is US1J-TP suitable for high-speed switching applications?
A: The US1J-TP has a longer reverse recovery time (75 ns) compared to the ES1J (35 ns). Applications requiring fast switching recovery should use ES1J, ES1JH, or ES1J_R1_00001, which all specify 35 ns recovery time.
Q: Are all substitute parts available in the same packaging format?
A: Yes. All substitute parts use DO-214AC (SMA) package format with surface mount mounting type. Packaging options differ between Cut Tape (CT) and Tape & Reel (TR) formats depending on the manufacturer and supplier, but the component package itself is identical.
Q: Which substitute part has the widest operating temperature range?
A: The US1J-TP provides the widest operating temperature range (-65°C ~ 175°C), compared to the ES1J (-50°C ~ 150°C). The ES1JH and ES1J_R1_00001 both operate from -55°C ~ 150°C.
Q: Can these parts be used interchangeably in automotive applications?
A: Only the ES1JH carries automotive-grade qualification (AEC-Q101). For applications requiring automotive compliance, ES1JH is the specified choice. The other substitutes are standard-grade components suitable for general-purpose applications.
Q: What is the significance of reverse leakage current differences among the substitutes?
A: Reverse leakage current affects power dissipation and circuit performance under reverse bias conditions. ES1J_R1_00001 has the lowest leakage (1 µA), followed by ES1J and ES1JH (5 µA each), and US1J-TP (10 µA). Applications sensitive to leakage current should prioritize ES1J_R1_00001.
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