ES2GAHR3G Equivalent & Substitute Parts

Part Overview

The ES2GAHR3G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 2 A average rectified current in a DO-214AC (SMA) surface mount package. This part is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing production and repair applications. The device features fast recovery characteristics with a 35 ns reverse recovery time and automotive-grade qualification per AEC-Q101, making it suitable for power supply and switching applications requiring reliable rectification at moderate voltage and current levels.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10 µA @ 400 V	µA
Capacitance @ Vr, F	20 pF @ 4V, 1MHz	pF
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ES2GAHR3G is determined by strict equivalence of electrical and mechanical parameters. The critical parameters governing substitution are:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V minimum
Current - Average Rectified (Io): 2 A minimum
Package / Case: DO-214AC (SMA) surface mount
Mounting Type: Surface Mount
Operating Temperature Range: Must encompass -55°C to 150°C minimum

Secondary Compatibility Factors:

Speed Classification: Fast Recovery preferred for equivalent performance
Reverse Recovery Time (trr): Lower values indicate superior switching performance
Forward Voltage (Vf): Lower values reduce power dissipation
Reverse Leakage Current: Lower values indicate better blocking characteristics
Compliance: RoHS3 and automotive qualification (AEC-Q101) for equivalent-grade applications

Substitute parts are classified into two categories:

Parametric Equivalents: Parts meeting all primary equivalence criteria with identical or superior electrical performance characteristics.

Similar Parts: Components with reduced current rating (1 A instead of 2 A) or alternative speed classifications, suitable only for applications with lower current requirements or where recovery speed is not critical.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	trr [ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	Grade	AEC-Q101	Product Status
ES2GAHR3G	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	Fast Recovery ≤ 500ns	35	10 @ 400 V	DO-214AC (SMA)	-55 to 150	Automotive	Yes	Discontinued
ES2GAH	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	Fast Recovery ≤ 500ns	35	10 @ 400 V	DO-214AC (SMA)	-55 to 150	Automotive	Yes	Active
ES2GA	SURGE	400	2	1.25 @ 2 A	Fast Recovery ≤ 500ns	25	5 @ 400 V	DO-214AC (SMA)	-55 to 150	—	—	Active
CFRA104-G	Comchip Technology	400	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	5 @ 400 V	DO-214AC (SMA)	—	—	—	Active
CGRA4004-G	Comchip Technology	400	1	1.1 @ 1 A	Standard Recovery >500ns	—	5 @ 400 V	DO-214AC (SMA)	-55 to 150	—	—	Active
CMR1-04M BK PBFREE	Central Semiconductor Corp	400	1	1.1 @ 1 A	Standard Recovery >500ns	—	10 @ 400 V	DO-214AC (SMA)	-65 to 150	—	—	Active
CMR1-04M TR13 PBFREE	Central Semiconductor Corp	400	1	1.1 @ 1 A	Standard Recovery >500ns	—	5 @ 400 V	DO-214AC (SMA)	-65 to 150	—	—	Active
CMR1F-04M BK PBFREE	Central Semiconductor Corp	400	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	5 @ 400 V	DO-214AC (SMA)	-65 to 150	—	—	Active
CMR1F-04M TR13 PBFREE	Central Semiconductor Corp	400	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	5 @ 400 V	DO-214AC (SMA)	-65 to 150	—	—	Active
CMR1U-04M BK PBFREE	Central Semiconductor Corp	400	1	1.25 @ 1 A	Fast Recovery ≤ 500ns	50	5 @ 400 V	DO-214AC (SMA)	-65 to 175	—	—	Active
CMR1U-04M TR13 PBFREE	Central Semiconductor Corp	400	1	1.25 @ 1 A	Fast Recovery ≤ 500ns	50	5 @ 400 V	DO-214AC (SMA)	-65 to 175	—	—	Active

Engineering Selection Recommendations

Parametric Equivalent - Direct Replacement:

The ES2GAH (Taiwan Semiconductor Corporation) is the direct parametric equivalent to the ES2GAHR3G. This part maintains identical electrical specifications including 400 V reverse voltage, 2 A average rectified current, 1.3 V forward voltage at 2 A, 35 ns reverse recovery time, and automotive-grade AEC-Q101 qualification. The ES2GAH is currently in active production status and available in Tape & Reel (TR) packaging. This component is suitable for direct substitution in all applications where the ES2GAHR3G was originally specified.

Alternative Parametric Equivalent - Enhanced Performance:

The ES2GA (SURGE) meets all primary equivalence criteria with 400 V reverse voltage and 2 A current rating in DO-214AC (SMA) package. This part demonstrates superior electrical performance with lower forward voltage (1.25 V vs. 1.3 V at 2 A), faster reverse recovery time (25 ns vs. 35 ns), and reduced reverse leakage current (5 µA vs. 10 µA at 400 V). The ES2GA is currently in active production status. Compliance status for automotive applications should be confirmed with the supplier prior to use in AEC-Q101-required applications.

Current-Reduced Alternatives:

Parts rated for 1 A average rectified current (CFRA104-G, CGRA4004-G, CMR1-04M variants, CMR1F-04M variants, CMR1U-04M variants) are suitable only for applications where the circuit current requirement does not exceed 1 A. These components maintain the 400 V reverse voltage rating and DO-214AC (SMA) package compatibility but cannot be used as direct replacements in circuits designed for 2 A operation.

Compliance Considerations:

The ES2GAHR3G carries automotive-grade designation with AEC-Q101 qualification. The ES2GAH maintains this qualification status. The ES2GA and all Comchip Technology and Central Semiconductor Corp alternatives do not carry explicit AEC-Q101 qualification in the provided specifications. Applications requiring automotive-grade components should prioritize the ES2GAH for continued compliance with original design specifications.

Frequently Asked Questions (FAQ)

Q: Can the ES2GA be used as a direct replacement for the ES2GAHR3G?

A: The ES2GA meets all primary electrical and mechanical equivalence criteria: 400 V reverse voltage, 2 A average rectified current, and DO-214AC (SMA) surface mount package. However, the ES2GA does not carry explicit AEC-Q101 automotive qualification in the provided specifications. For applications requiring automotive-grade components, the ES2GAH is the recommended direct replacement. For non-automotive applications, the ES2GA is electrically compatible and offers improved performance characteristics.

Q: Why are the 1 A rated parts listed as alternatives rather than direct substitutes?

A: The ES2GAHR3G is rated for 2 A average rectified current. Parts such as CFRA104-G, CGRA4004-G, and CMR1-series components are rated for 1 A maximum. Using a 1 A rated diode in a circuit designed for 2 A operation will result in device overstress, reduced reliability, and potential failure. These parts are listed as similar alternatives only for applications with reduced current requirements.

Q: What is the difference between the ES2GAH and ES2GA?

A: Both parts meet the primary equivalence criteria of 400 V, 2 A, and DO-214AC (SMA) package. The ES2GAH is manufactured by Taiwan Semiconductor Corporation (same as the original ES2GAHR3G) and carries AEC-Q101 automotive qualification. The ES2GA is manufactured by SURGE and offers superior electrical performance with lower forward voltage (1.25 V vs. 1.3 V), faster recovery time (25 ns vs. 35 ns), and lower leakage current (5 µA vs. 10 µA). Selection depends on whether automotive qualification is required for the application.

Q: Are the CMR1-04M and CMR1F-04M variants interchangeable?

A: Both CMR1-04M and CMR1F-04M variants are rated for 1 A, not 2 A, and therefore cannot replace the 2 A rated ES2GAHR3G. The CMR1-04M series features standard recovery characteristics (>500 ns), while the CMR1F-04M series features fast recovery characteristics (≤500 ns). Within the 1 A category, the CMR1F-04M variants are more similar to the fast recovery profile of the original part, but current rating remains the limiting factor for substitution.

Q: What packaging options are available for the parametric equivalents?

A: The ES2GAH is available in Tape & Reel (TR) packaging with 15,629 pieces in stock. The ES2GA is available in Bag packaging with 305,000 pieces in stock. Both maintain the DO-214AC (SMA) component package. Packaging selection depends on production volume requirements and handling procedures. Tape & Reel packaging is standard for automated assembly processes, while Bag packaging is suitable for lower-volume or manual assembly operations.

Q: Can I use a part with a lower operating temperature range?

A: The ES2GAHR3G specifies an operating temperature range of -55°C to 150°C. The ES2GAH maintains this identical range. The ES2GA also maintains -55°C to 150°C. The CMR1-series and CFRA104-G parts specify -65°C to 150°C or -65°C to 175°C, which encompasses the original specification. A part with a wider or equal temperature range is acceptable. A part with a narrower temperature range would not be suitable if the application requires operation at the lower temperature limit of -55°C.

Q: What is the significance of the reverse recovery time (trr) parameter?

A: Reverse recovery time indicates how quickly the diode transitions from conducting to blocking state when the applied voltage reverses. The ES2GAHR3G specifies 35 ns. The ES2GA offers 25 ns (faster), while some alternatives offer 150 ns (slower). Faster recovery time reduces switching losses and electromagnetic interference in high-frequency switching applications. For low-frequency rectification applications, recovery time is less critical. The ES2GA's faster recovery time represents an improvement over the original specification.

Q: Is RoHS3 compliance maintained across all substitute options?

A: The ES2GAHR3G, ES2GAH, and ES2GA all carry explicit ROHS3 Compliant status. The Comchip Technology and Central Semiconductor Corp alternatives (CFRA104-G, CGRA4004-G, CMR1-series) also carry ROHS3 Compliant status in the provided specifications. All listed alternatives maintain RoHS3 compliance, making them suitable for applications with RoHS3 requirements.

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