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ES1J R3G Equivalent & Substitute Parts
Part Overview
The ES1J R3G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer functional compatibility within defined parameter tolerances for 600 V, 1 A rectifier applications.
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 |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | — |
| Reverse Recovery Time (trr) | 35 | ns |
| Current - Reverse Leakage @ Vr | 5 @ 600 V | µA |
| Mounting Type | Surface Mount | — |
| Package / Case | DO-214AC, SMA | — |
| Operating Temperature - Junction | -55 to 150 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the ES1J R3G is determined by strict equivalence in the following electrical parameters: maximum DC reverse voltage (600 V), average rectified current (1 A), forward voltage drop (1.7 V @ 1 A), fast recovery speed classification (≤ 500ns, > 200mA), reverse leakage current (5 µA @ 600 V), and mechanical compatibility with DO-214AC (SMA) surface mount packaging. Parts are grouped into three categories:
Parametric Equivalents maintain all critical electrical specifications and reverse recovery time (35 ns) identical to the ES1J R3G, differing only in capacitance values or manufacturer identity. These parts are direct functional replacements.
Direct Manufacturer Equivalents are alternative part numbers from the same or different manufacturers that meet all electrical and mechanical requirements with minor variations in secondary parameters such as capacitance or operating temperature range.
Similar Parts satisfy the core voltage, current, and package requirements but may exhibit variations in forward voltage, reverse recovery time, or capacitance that remain within acceptable operating ranges for general-purpose rectification applications.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Vr (Max) [V] | Io [A] | Vf (Max) @ If [V] | trr [ns] | Ir @ Vr [µA] | Package | Product Status |
|---|---|---|---|---|---|---|---|---|
| ES1J R3G | Taiwan Semiconductor Corporation | 600 | 1 | 1.7 @ 1 A | 35 | 5 @ 600 V | DO-214AC (SMA) | Discontinued at DiGi Electronics |
| ES1J | HY Electronic (Cayman) Limited | 600 | 1 | 1.7 @ 1 A | 35 | 5 @ 600 V | DO-214AC (SMA) | Active |
| ES1JH | Taiwan Semiconductor Corporation | 600 | 1 | 1.7 @ 1 A | 35 | 5 @ 600 V | DO-214AC (SMA) | Active |
| HS1J | Good-Ark Semiconductor | 600 | 1 | 1.7 @ 1 A | 75 | 5 @ 600 V | DO-214AC (SMA) | Active |
| US1J | SMC Diode Solutions | 600 | 1 | 1.7 @ 1 A | 75 | 5 @ 600 V | DO-214AC (SMA) | Active |
| US1J R3G | Taiwan Semiconductor Corporation | 600 | 1 | 1.7 @ 1 A | 75 | 5 @ 600 V | DO-214AC (SMA) | Discontinued at DiGi Electronics |
| US1JH | Taiwan Semiconductor Corporation | 600 | 1 | 1.7 @ 1 A | 75 | 5 @ 600 V | DO-214AC (SMA) | Active |
| ES1J-LTP | Micro Commercial Co | 600 | 1 | 1.7 @ 1 A | 35 | 5 @ 600 V | DO-214AC (SMA) | Active |
| CGRA4005-G | Comchip Technology | 600 | 1 | 1.1 @ 1 A | — | 5 @ 600 V | DO-214AC (SMA) | Active |
| CSFA105-G | Comchip Technology | 600 | 1 | 1.5 @ 1 A | 35 | 5 @ 600 V | DO-214AC (SMA) | Active |
Engineering Selection Recommendations
Primary Substitutes (Parametric Equivalents with 35 ns Reverse Recovery Time):
ES1J-LTP (Micro Commercial Co) is the recommended primary substitute. This part maintains identical electrical specifications to the ES1J R3G, including 35 ns reverse recovery time, 1.7 V forward voltage, and 5 µA reverse leakage current. ES1J-LTP is actively produced, ROHS3 compliant, and available in high inventory (55,300 pcs). The extended operating temperature range (-65°C to 175°C) provides additional thermal margin compared to the original part.
ES1JH (Taiwan Semiconductor Corporation) is an alternative from the original manufacturer. This part is actively produced, ROHS3 compliant, AEC-Q101 qualified for automotive applications, and maintains identical electrical performance with 35 ns reverse recovery time. Inventory availability is 15,721 pcs.
ES1J (HY Electronic) provides parametric equivalence with identical electrical specifications and 35 ns reverse recovery time. This part is actively produced, RoHS compliant, and available in substantial inventory (175,400 pcs). The AEC-Q101 automotive qualification is included.
Secondary Substitutes (Parametric Equivalents with 75 ns Reverse Recovery Time):
US1JH (Taiwan Semiconductor Corporation) is an active alternative from the original manufacturer with AEC-Q101 automotive qualification and ROHS3 compliance. This part exhibits 75 ns reverse recovery time, which is acceptable for general-purpose rectification where switching speed is not performance-critical. Inventory is 15,724 pcs.
US1J (SMC Diode Solutions) maintains all core electrical specifications with 75 ns reverse recovery time. This part is actively produced and available in high inventory (35,300 pcs). The longer reverse recovery time is suitable for non-critical switching applications.
Tertiary Substitutes (Similar Parts with Parameter Variations):
CSFA105-G (Comchip Technology) satisfies voltage, current, and package requirements with 1.5 V forward voltage (compared to 1.7 V nominal) and 35 ns reverse recovery time. This part is actively produced and ROHS3 compliant. The reduced forward voltage may provide efficiency benefits in power dissipation-sensitive applications.
CGRA4005-G (Comchip Technology) meets voltage, current, and package specifications with 1.1 V forward voltage and undocumented reverse recovery time. This part is actively produced and ROHS3 compliant. The significantly lower forward voltage drop represents a notable performance advantage in thermal management.
Compliance and Certification Status:
All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. ES1JH and US1JH include AEC-Q101 automotive qualification, suitable for automotive and high-reliability applications. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.
Frequently Asked Questions (FAQ)
Q: Can ES1J-LTP directly replace ES1J R3G in all applications?
A: Yes. ES1J-LTP maintains identical electrical specifications including 600 V reverse voltage, 1 A average rectified current, 1.7 V forward voltage at 1 A, and 35 ns reverse recovery time. Both parts use DO-214AC (SMA) surface mount packaging. The extended operating temperature range of ES1J-LTP (-65°C to 175°C versus -55°C to 150°C) provides additional thermal capability.
Q: What is the difference between parts with 35 ns and 75 ns reverse recovery time?
A: Reverse recovery time (trr) determines the speed at which a diode transitions from forward conduction to reverse blocking. Parts with 35 ns reverse recovery time (ES1J-LTP, ES1JH, ES1J, CSFA105-G) switch faster and generate less switching noise. Parts with 75 ns reverse recovery time (US1JH, US1J, HS1J) are suitable for general-purpose rectification where switching speed is not performance-critical. Selection depends on circuit switching frequency and electromagnetic interference requirements.
Q: Are there differences in forward voltage drop between substitutes?
A: Yes. Most substitutes maintain 1.7 V forward voltage at 1 A, matching the ES1J R3G specification. However, CSFA105-G exhibits 1.5 V and CGRA4005-G exhibits 1.1 V forward voltage. Lower forward voltage reduces power dissipation and heat generation. Selection should consider thermal design and efficiency requirements.
Q: Which substitute is recommended for automotive applications?
A: ES1JH and US1JH both include AEC-Q101 automotive qualification and ROHS3 compliance. ES1JH is preferred for automotive applications requiring 35 ns reverse recovery time, while US1JH is suitable for automotive applications where 75 ns reverse recovery time is acceptable.
Q: Can ES2J-LTP (2 A rated) be used as a substitute for ES1J R3G (1 A rated)?
A: No. ES2J-LTP is rated for 2 A average rectified current and is not a direct substitute for the 1 A ES1J R3G. While the higher current rating provides design margin, the forward voltage specification differs (1.7 V @ 2 A versus 1.7 V @ 1 A), and circuit design parameters may require recalculation.
Q: What is the inventory status of recommended substitutes?
A: ES1J-LTP has the highest inventory availability (55,300 pcs). ES1J (HY Electronic) provides 175,400 pcs. ES1JH and US1JH each provide approximately 15,700 pcs. US1J (SMC Diode Solutions) provides 35,300 pcs. All recommended substitutes are actively produced and available for immediate procurement.
Q: Are all substitutes ROHS3 compliant?
A: Yes. All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original ES1J R3G specifications.
Q: What packaging options are available for substitutes?
A: All substitutes use DO-214AC (SMA) surface mount packaging, identical to the ES1J R3G. Packaging variations include Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and bulk options. Selection depends on production volume and assembly requirements.
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