ES3A V7G Equivalent & Substitute Parts

Part Overview

The ES3A V7G is a general-purpose fast recovery rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility for direct board-level substitution.

Substiute Parts

ES3A V7G

Taiwan Semiconductor CorporationIn Stock: 839ES3A V7G Datasheet

Current PartRFQ

ES3A

Taiwan Semiconductor CorporationIn Stock: 17208ES3A Datasheet

DirectRFQ

ES3A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 5356ES3A-E3/57T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ES3A V7G is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 3 A
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C
• Technology: Standard (Fast Recovery classification)

Acceptable Variation Parameters:

• Reverse Recovery Time (trr): Equal to or faster than specified
• Voltage - Forward (Vf) (Max) @ If: Minor variations acceptable within rectifier diode design tolerances
• Current - Reverse Leakage @ Vr: Equal to or lower than specified

Substitute parts must maintain identical voltage and current ratings, package form factor, and thermal operating range. Improvements in reverse recovery time or forward voltage drop represent acceptable enhancements. All substitute parts must comply with RoHS3 and maintain MSL 1 classification.

Parameter Comparison

Engineering Selection Recommendations

ES3A (Taiwan Semiconductor Corporation)

The ES3A represents the direct equivalent to the ES3A V7G. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications, package form factor, and thermal ratings. The ES3A maintains active product status with 17,100 units in stock, providing immediate availability. This part is the primary substitute for direct replacement applications.

ES3A-E3/57T (Vishay General Semiconductor - Diodes Division)

The ES3A-E3/57T is manufactured by Vishay General Semiconductor - Diodes Division and meets all critical electrical and mechanical requirements. This part demonstrates improved performance characteristics: forward voltage drop of 900 mV at 3 A (compared to 950 mV for the ES3A) and faster reverse recovery time of 30 ns (compared to 35 ns). The ES3A-E3/57T is supplied in Tape & Reel packaging with 5,250 units in stock and maintains active product status. This part is suitable for applications where enhanced switching performance is beneficial.

Both substitute parts maintain ROHS3 compliance, MSL 1 classification, and identical operating temperature ranges. Selection between ES3A and ES3A-E3/57T depends on packaging requirements (bulk versus tape & reel) and performance optimization priorities.

Frequently Asked Questions (FAQ)

Q: Can the ES3A directly replace the ES3A V7G?

A: Yes. The ES3A is electrically and mechanically equivalent to the ES3A V7G. Both parts share identical voltage ratings (50 V), current ratings (3 A), package form factor (DO-214AB, SMC), and thermal operating range (-55°C to 150°C). The ES3A is manufactured by the same supplier and maintains active product status.

Q: What is the difference between the ES3A and ES3A-E3/57T?

A: Both parts meet identical voltage, current, and package specifications. The ES3A-E3/57T, manufactured by Vishay, offers improved performance with lower forward voltage drop (900 mV versus 950 mV at 3 A) and faster reverse recovery time (30 ns versus 35 ns). The primary difference is manufacturer and packaging format: ES3A is supplied in standard packaging, while ES3A-E3/57T is supplied in Tape & Reel format.

Q: Are there packaging differences between these substitutes?

A: The ES3A and ES3A-E3/57T both use the DO-214AB (SMC) surface mount package with identical pin configuration and footprint. The ES3A-E3/57T is supplied in Tape & Reel (TR) packaging, while the ES3A is supplied in standard packaging. Both are suitable for automated assembly processes.

Q: Do all substitute parts meet compliance requirements?

A: Yes. The ES3A and ES3A-E3/57T are both ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level). Both parts meet the same regulatory and environmental standards as the original ES3A V7G.

Q: Which substitute should be selected for new designs?

A: For new designs, either the ES3A or ES3A-E3/57T is appropriate. The ES3A provides direct equivalence with the original part. The ES3A-E3/57T offers performance advantages (lower forward voltage, faster recovery time) and is suitable when these characteristics provide system-level benefits. Packaging availability and supply chain considerations may influence selection.

Q: What is the reverse recovery time significance?

A: Reverse recovery time (trr) determines the speed at which the diode transitions from conducting to blocking state. The ES3A-E3/57T (30 ns) exhibits faster recovery than the ES3A (35 ns). Faster recovery reduces switching losses in high-frequency applications and improves electromagnetic compatibility. Both values fall within the fast recovery classification (≤ 500 ns for currents > 200 mA).