ES3AHM6G Equivalent & Substitute Parts

Part Overview

The ES3AHM6G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 3 A average rectified current in a DO-214AB (SMC) surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design and procurement requirements. The device features fast recovery characteristics with a 35 ns reverse recovery time and automotive-grade qualification per AEC-Q101.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 3 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10	µA @ 50 V
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the ES3AHM6G is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 50 V minimum
Current - Average Rectified (Io): 3 A minimum
Package / Case: DO-214AB (SMC) or compatible surface mount package
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C minimum

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: 950 mV @ 3 A or lower
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr): 35 ns or lower
Current - Reverse Leakage @ Vr: 10 µA @ 50 V or lower
RoHS Compliance: ROHS3 Compliant
Automotive Grade and AEC-Q101 Qualification (where applicable)

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts with identical electrical specifications and automotive qualification, differing only in manufacturer or product status.

Similar Parts: Components meeting primary substitution criteria but with variations in secondary parameters such as forward voltage, recovery time, or package configuration. These parts are suitable for applications where the specific parameter variation does not impact circuit performance.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Speed	trr [ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	Grade	Status
ES3AHM6G	Taiwan Semiconductor	50	3	950 @ 3A	Fast Recovery ≤ 500ns	35	10 @ 50V	DO-214AB (SMC)	-55 to 150	Automotive AEC-Q101	Discontinued
ES3A	Taiwan Semiconductor	50	3	950 @ 3A	Fast Recovery ≤ 500ns	35	10 @ 50V	DO-214AB (SMC)	-55 to 150	Standard	Active
ES3AH	Taiwan Semiconductor	50	3	950 @ 3A	Fast Recovery ≤ 500ns	35	10 @ 50V	DO-214AB (SMC)	-55 to 150	Automotive AEC-Q101	Active
CSFC301-G	Comchip Technology	50	3	950 @ 3A	Fast Recovery ≤ 500ns	35	5 @ 50V	DO-214AB (SMC)	-55 to 150	Standard	Active
ES3A-13-F	Diodes Incorporated	50	3	900 @ 3A	Fast Recovery ≤ 500ns	25	10 @ 50V	DO-214AB (SMC)	-55 to 150	Standard	Active
ES3AB-13-F	Diodes Incorporated	50	3	900 @ 3A	Fast Recovery ≤ 500ns	25	10 @ 50V	DO-214AA (SMB)	-55 to 150	Standard	Active
S3A-13-F	Diodes Incorporated	50	3	1150 @ 3A	Standard Recovery >500ns	150	10 @ 50V	DO-214AB (SMC)	-65 to 150	Standard	Active
RS3A-13-F	Diodes Incorporated	50	3	1300 @ 3A	Fast Recovery ≤ 500ns	150	5 @ 50V	DO-214AB (SMC)	-65 to 150	Standard	Active
RS3AB-13-F	Diodes Incorporated	50	3	1300 @ 3A	Fast Recovery ≤ 500ns	150	5 @ 50V	DO-214AA (SMB)	-65 to 150	Standard	Active
CGRC501-G	Comchip Technology	50	5	1150 @ 5A	Standard Recovery >500ns	—	10 @ 50V	DO-214AB (SMC)	-55 to 150	Standard	Active
S10A-TP	Micro Commercial Co	50	10	1200 @ 10A	Standard Recovery >500ns	—	10 @ 50V	DO-214AB (SMC)	-55 to 150	Standard	Obsolete

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalents):

ES3AH is the recommended direct replacement for ES3AHM6G. Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications, automotive-grade qualification per AEC-Q101, and active product status. ES3AH provides continuity in design and supply chain with no circuit redesign required.

ES3A is an alternative from Taiwan Semiconductor Corporation with identical electrical specifications but standard-grade qualification (non-automotive). This part is suitable for non-automotive applications requiring the same electrical performance.

Cross-Manufacturer Equivalents:

CSFC301-G (Comchip Technology) meets all primary substitution criteria with identical voltage, current, and package specifications. The reverse leakage current is lower (5 µA vs. 10 µA), which is a favorable characteristic. This part is suitable for applications where automotive qualification is not required.

Functional Alternatives with Parameter Variations:

ES3A-13-F (Diodes Incorporated) provides improved performance with lower forward voltage (900 mV vs. 950 mV) and faster reverse recovery time (25 ns vs. 35 ns). The package is DO-214AB (SMC), identical to the main part. This part is suitable for applications where reduced power dissipation and faster switching are beneficial.

ES3AB-13-F (Diodes Incorporated) offers the same electrical performance as ES3A-13-F but in a DO-214AA (SMB) package. This part is suitable only if the PCB layout accommodates the SMB package footprint.

S3A-13-F (Diodes Incorporated) meets voltage and current requirements but operates with standard recovery characteristics (>500ns) and higher forward voltage (1150 mV @ 3A). This part is suitable for low-frequency applications where recovery speed is not critical.

RS3A-13-F and RS3AB-13-F (Diodes Incorporated) provide extended operating temperature range (-65°C to 150°C) but with significantly higher forward voltage (1300 mV @ 3A) and slower recovery time (150 ns). These parts are suitable only for applications requiring the extended low-temperature specification.

Higher Current Alternatives:

CGRC501-G (Comchip Technology) and S10A-TP (Micro Commercial Co) are rated for higher current (5 A and 10 A respectively) and are suitable for applications requiring increased current capacity. Both parts maintain the 50 V voltage rating and DO-214AB package. S10A-TP is obsolete and should not be selected for new designs.

Compliance and Certification:

All substitute parts are ROHS3 compliant and REACH unaffected. Automotive-grade qualification per AEC-Q101 is available only in ES3AHM6G, ES3AH, and the main part ES3A. For automotive applications, ES3AH is the recommended selection. For non-automotive applications, any active-status part meeting the electrical requirements is acceptable.

Frequently Asked Questions (FAQ)

Q: Can ES3A be used as a direct replacement for ES3AHM6G?

A: ES3A is electrically equivalent to ES3AHM6G with identical voltage, current, and package specifications. However, ES3A is standard-grade (non-automotive) while ES3AHM6G is automotive-grade with AEC-Q101 qualification. For automotive applications, ES3AH is the appropriate replacement. For non-automotive applications, ES3A is suitable.

Q: What is the difference between ES3AH and ES3AHM6G?

A: ES3AH and ES3AHM6G are parametrically identical with the same electrical specifications, package, and automotive qualification. The primary difference is product status: ES3AHM6G is discontinued while ES3AH is active. ES3AH is the direct replacement.

Q: Can I use CSFC301-G instead of ES3AHM6G?

A: CSFC301-G meets all primary substitution criteria with identical voltage (50 V), current (3 A), and package (DO-214AB SMC) specifications. The reverse leakage current is lower (5 µA vs. 10 µA), which is favorable. However, CSFC301-G is standard-grade without automotive qualification. For non-automotive applications, CSFC301-G is suitable. For automotive applications, ES3AH is required.

Q: What is the advantage of ES3A-13-F over ES3AHM6G?

A: ES3A-13-F provides lower forward voltage (900 mV vs. 950 mV) and faster reverse recovery time (25 ns vs. 35 ns), resulting in reduced power dissipation and faster switching performance. The package and voltage/current ratings are identical. This part is suitable for applications where improved efficiency is beneficial.

Q: Why would I choose S3A-13-F if it has higher forward voltage?

A: S3A-13-F is suitable for low-frequency applications where switching speed is not critical and cost optimization is a priority. The higher forward voltage (1150 mV) and standard recovery characteristics (>500ns) are acceptable in such applications. This part should not be used in high-frequency switching circuits.

Q: What is the difference between DO-214AB (SMC) and DO-214AA (SMB) packages?

A: DO-214AB (SMC) and DO-214AA (SMB) are different surface mount package footprints. SMC is smaller than SMB. Parts like ES3AB-13-F use the SMB package and require a different PCB footprint. Verify PCB layout compatibility before selecting SMB-packaged alternatives.

Q: Can I use CGRC501-G or S10A-TP for a 3 A application?

A: CGRC501-G is rated for 5 A and S10A-TP is rated for 10 A. Both can be used in 3 A applications as they are rated for higher current. However, S10A-TP is obsolete and should not be selected for new designs. CGRC501-G is active and suitable if higher current capacity is desired for future design margin.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts listed are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements equivalent to ES3AHM6G.

Q: Which substitute part should I select for a new automotive design?

A: ES3AH is the recommended selection for new automotive designs. It is manufactured by Taiwan Semiconductor Corporation, maintains automotive-grade qualification per AEC-Q101, and is active with established supply availability. All electrical specifications are identical to ES3AHM6G.

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