ES1GRX Equivalent & Substitute Parts

Part Overview

The ES1GRX is a general-purpose rectifier diode manufactured by Nexperia USA Inc., rated for 400 V DC reverse voltage and 1 A average rectified current in a surface mount SOD-123W package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging and availability constraints.

Substiute Parts

ES1GRX

Nexperia USA Inc.In Stock: 850ES1GRX Datasheet

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S15GLWHRVG

Taiwan Semiconductor CorporationIn Stock: 9678S15GLWHRVG Datasheet

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UF1GLW RVG

Taiwan Semiconductor CorporationIn Stock: 869UF1GLW RVG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ES1GRX are selected based on the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 400 V
• Current - Average Rectified (Io): Must equal or exceed 1 A
• Package / Case: Must be SOD-123W
• Mounting Type: Must be Surface Mount
• RoHS Status: Must maintain ROHS3 Compliance
• Moisture Sensitivity Level: Must be MSL 1 or equivalent

Secondary Compatibility Factors:

• Voltage - Forward (Vf) (Max): Lower or equal values indicate improved performance
• Reverse Recovery Time (trr): Lower values indicate faster switching characteristics
• Current - Reverse Leakage @ Vr: Lower values indicate reduced leakage current
• Operating Temperature Range: Must accommodate application thermal requirements

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

UF1GLW RVG is the primary substitute for ES1GRX applications requiring electrical parameter equivalence. This part maintains identical voltage and current ratings (400 V, 1 A), matching forward voltage characteristics (1.25 V @ 1 A), and fast recovery speed classification. The UF1GLW RVG exhibits superior reverse recovery time performance (20 ns versus 25 ns) and is manufactured by Taiwan Semiconductor Corporation with active product status. Operating temperature range extends to -55°C minimum, providing broader thermal coverage than the main part. RoHS3 compliance and MSL 1 rating ensure regulatory and moisture handling compatibility. This substitute is suitable for direct replacement in applications where fast recovery characteristics are required.

S15GLWHRVG is an alternative substitute for applications where increased current capacity provides design margin. This part maintains the 400 V reverse voltage rating but offers elevated current rating (1.5 A versus 1 A). Forward voltage is reduced to 1.1 V @ 1.5 A, indicating improved efficiency characteristics. S15GLWHRVG employs standard recovery speed classification, distinguishing it from the fast recovery specification of the main part. Operating temperature range extends to -55°C to 175°C, providing the widest thermal envelope. RoHS3 compliance and MSL 1 rating are maintained. This substitute is appropriate for applications where standard recovery speed is acceptable and higher current capacity is beneficial.

Both substitutes are manufactured by Taiwan Semiconductor Corporation with active product status, ensuring ongoing availability and supply chain stability compared to the obsolete ES1GRX.

Frequently Asked Questions (FAQ)

Q: Can UF1GLW RVG and S15GLWHRVG be used interchangeably with ES1GRX?

A: Both parts meet the minimum electrical requirements for ES1GRX substitution (400 V reverse voltage, ≥1 A current rating, SOD-123W package). However, they differ in recovery speed classification and current rating. UF1GLW RVG provides electrical equivalence with fast recovery characteristics matching the main part. S15GLWHRVG offers higher current capacity but operates with standard recovery speed. Selection depends on application-specific requirements for switching speed and current margin.

Q: What is the difference between fast recovery and standard recovery speed classifications?

A: Fast recovery diodes (≤500 ns) are optimized for high-frequency switching applications and exhibit lower reverse recovery time (trr). Standard recovery diodes (>500 ns) are suitable for lower-frequency rectification applications. ES1GRX and UF1GLW RVG both specify fast recovery characteristics with trr values of 25 ns and 20 ns respectively. S15GLWHRVG specifies standard recovery classification without a defined trr value, making it unsuitable for applications requiring fast switching performance.

Q: Are there packaging differences between the main part and substitutes?

A: All three parts use the SOD-123W surface mount package, ensuring mechanical compatibility. The main difference is in supply packaging: ES1GRX is supplied in Cut Tape (CT) and Digi-Reel® formats, while both substitutes are supplied in Tape & Reel (TR) format. This affects procurement and handling procedures but does not impact component functionality or PCB assembly compatibility.

Q: How do reverse leakage current specifications affect substitution?

A: ES1GRX specifies 400 nA reverse leakage at 400 V, while both substitutes specify 1 µA at 400 V. This represents a 2.5× increase in leakage current for the substitutes. In applications sensitive to leakage current (such as precision analog circuits or high-impedance circuits), this difference may be significant. For standard rectification applications, this difference is typically negligible.

Q: What is the significance of the operating temperature range difference?

A: ES1GRX specifies a maximum junction temperature of 150°C without a minimum specification. UF1GLW RVG specifies -55°C to 150°C, and S15GLWHRVG specifies -55°C to 175°C. The substitutes provide defined minimum operating temperatures and, in the case of S15GLWHRVG, an extended maximum temperature. Applications operating at temperatures below 0°C or above 150°C require verification against the specific substitute part's thermal specifications.

Q: Are all three parts RoHS3 compliant?

A: Yes. ES1GRX, UF1GLW RVG, and S15GLWHRVG are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. This ensures regulatory compliance and eliminates moisture handling constraints for all three parts.