ES3F R7G Equivalent & Substitute Parts

Part Overview

The ES3F R7G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 300 V DC reverse voltage and 3 A average rectified current in a DO-214AB surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	300 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	10 µA @ 300 V
Capacitance @ Vr, F	30 pF @ 4 V, 1 MHz
Package / Case	DO-214AB (SMC)
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the ES3F R7G is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Voltage - DC Reverse (Vr) (Max): 300 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-214AB (SMC)
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C ~ 150°C
RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Up to 1.3 V @ 3 A
Reverse Recovery Time (trr): Up to 35 ns
Current - Reverse Leakage @ Vr: Up to 10 µA @ 300 V
Capacitance @ Vr, F: 30 pF @ 4 V, 1 MHz

Substitute parts must maintain all mandatory parameters while operating within the allowable variation range for electrical characteristics. All identified substitutes meet these criteria and are available in active product status with current inventory.

Parameter Comparison

Parameter	ES3F R7G (Main)	ES3FH	ES3FHE3_A/H	ES3FHE3_A/I
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	300 V	300 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	1.3 V @ 3 A	1.1 V @ 3 A	1.1 V @ 3 A
Reverse Recovery Time (trr)	35 ns	35 ns	50 ns	50 ns
Current - Reverse Leakage @ Vr	10 µA @ 300 V	10 µA @ 300 V	10 µA @ 300 V	10 µA @ 300 V
Capacitance @ Vr, F	30 pF @ 4 V, 1 MHz	30 pF @ 4 V, 1 MHz	30 pF @ 4 V, 1 MHz	30 pF @ 4 V, 1 MHz
Package / Case	DO-214AB (SMC)	DO-214AB (SMC)	DO-214AB (SMC)	DO-214AB (SMC)
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Discontinued at DiGi Electronics	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Grade	Standard	Automotive	Automotive	Automotive
Qualification	None specified	AEC-Q101	AEC-Q101	AEC-Q101
Inventory Status	1054 Pcs New Original In Stock	3935 Pcs New Original In Stock	808 Pcs New Original In Stock	893 Pcs New Original In Stock

Engineering Selection Recommendations

ES3FH (Taiwan Semiconductor Corporation)

The ES3FH is a parametric equivalent to the ES3F R7G, manufactured by the same supplier. This part maintains identical electrical specifications including forward voltage, reverse recovery time, and reverse leakage current. The ES3FH is available in active product status with significantly higher inventory (3935 units). This part carries automotive-grade qualification (AEC-Q101) and is supplied in Tape & Reel packaging, making it suitable for high-volume production environments. Selection of ES3FH is appropriate for direct replacement in applications where the original ES3F R7G specification is required.

ES3FHE3_A/H and ES3FHE3_A/I (Vishay General Semiconductor - Diodes Division)

Both Vishay parts are functionally compatible substitutes with the following considerations: forward voltage is reduced to 1.1 V @ 3 A (compared to 1.3 V for the main part), and reverse recovery time is extended to 50 ns (compared to 35 ns). These differences remain within acceptable operating parameters for general-purpose rectification applications. Both parts carry automotive-grade qualification (AEC-Q101) and are available in active product status. The ES3FHE3_A/H and ES3FHE3_A/I are supplied in Tape & Reel packaging with adequate inventory levels (808 and 893 units respectively). Selection of either Vishay part is appropriate where cross-manufacturer substitution is acceptable and the reduced forward voltage characteristic is beneficial for thermal management.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical package geometry (DO-214AB), ensuring mechanical and environmental compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can ES3FH be used as a direct replacement for ES3F R7G?

A: Yes. The ES3FH maintains identical electrical specifications across all critical parameters including voltage rating, current capacity, forward voltage, and reverse recovery time. Both parts use the DO-214AB package and operate across the same temperature range. The primary difference is product status: ES3FH is active while ES3F R7G is discontinued.

Q: What is the difference between ES3FH and the Vishay ES3FHE3_A/H or ES3FHE3_A/I parts?

A: The Vishay parts feature a lower forward voltage (1.1 V @ 3 A versus 1.3 V @ 3 A) and a longer reverse recovery time (50 ns versus 35 ns). These differences are within acceptable operating parameters for general-purpose rectification. The choice between Taiwan Semiconductor and Vishay parts depends on application-specific requirements regarding forward voltage drop and switching speed.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the DO-214AB (SMC) surface mount package, ensuring mechanical compatibility with existing PCB layouts and assembly processes. Packaging format differs (ES3FH, ES3FHE3_A/H, and ES3FHE3_A/I are supplied in Tape & Reel), but the component package remains identical.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant with MSL Level 1 rating, matching the original ES3F R7G. Additionally, the substitute parts carry AEC-Q101 automotive qualification, which exceeds the standard-grade classification of the original part.

Q: What inventory levels are available for each substitute?

A: ES3FH has the highest inventory at 3935 units. ES3FHE3_A/I has 893 units in stock, and ES3FHE3_A/H has 808 units. All parts are listed as new original stock.

Q: Can I mix different substitute parts in the same production run?

A: All substitute parts meet the mandatory equivalence parameters for the ES3F R7G application. However, mixing parts with different forward voltage characteristics (1.3 V versus 1.1 V) or reverse recovery times (35 ns versus 50 ns) in the same circuit may introduce performance variations. Consistency within a single design is recommended.

Q: What is the significance of the automotive-grade qualification on the Vishay parts?

A: AEC-Q101 qualification indicates the parts meet automotive industry reliability and quality standards. This qualification is not present on the original ES3F R7G but is present on all substitute parts, providing enhanced assurance for applications requiring automotive-level reliability.

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