ES2AA M2G Equivalent & Substitute Parts

Part Overview

The ES2AA M2G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 2 A average rectified current in a DO-214AC (SMA) surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. The ES2AA M2G features fast recovery characteristics with a reverse recovery time of 35 nanoseconds, making it suitable for applications requiring rapid switching performance.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 2 A	mV
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10	µA @ 50 V
Capacitance @ Vr, F	25	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the ES2AA M2G are categorized based on electrical parameter compatibility and package specifications. The primary substitution criteria are:

Parametric Equivalents maintain identical electrical specifications: 50 V reverse voltage, 2 A average rectified current, 950 mV forward voltage at 2 A, 35 ns reverse recovery time, and DO-214AC (SMA) package configuration. These parts are direct functional replacements with no circuit redesign required.

Similar Parts share the same 50 V reverse voltage rating and DO-214AC (SMA) package but differ in current rating (1 A or 3 A) or technology type (Schottky versus standard rectifier). These parts are suitable for applications where the current requirement differs from the original specification or where Schottky characteristics provide circuit advantages. Schottky diodes exhibit lower forward voltage drop (700 mV typical) compared to standard rectifiers (950 mV), resulting in reduced power dissipation.

Current rating compatibility is determined by application requirements: 1 A Schottky parts are suitable for circuits requiring lower current handling, while 3 A Schottky parts accommodate higher current demands. All substitute parts maintain the 50 V reverse voltage specification and fast recovery characteristics (≤500 ns for currents >200 mA).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Technology	Vr (Max)	Io	Vf (Max) @ If	trr	Package	Product Status
ES2AA M2G	Taiwan Semiconductor Corporation	Standard	50 V	2 A	950 mV @ 2 A	35 ns	DO-214AC (SMA)	Discontinued
ES2AA	Taiwan Semiconductor Corporation	Standard	50 V	2 A	950 mV @ 2 A	35 ns	DO-214AC (SMA)	Active
ES2AAH	Taiwan Semiconductor Corporation	Standard	50 V	2 A	950 mV @ 2 A	35 ns	DO-214AC (SMA)	Active
B150-13-F	Diodes Incorporated	Schottky	50 V	1 A	700 mV @ 1 A	≤500 ns	DO-214AC (SMA)	Active
B150-E3/5AT	Vishay General Semiconductor - Diodes Division	Schottky	50 V	1 A	750 mV @ 1 A	≤500 ns	DO-214AC (SMA)	Active
B150-E3/61T	Vishay General Semiconductor - Diodes Division	Schottky	50 V	1 A	750 mV @ 1 A	≤500 ns	DO-214AC (SMA)	Active
B150B-13-F	Diodes Incorporated	Schottky	50 V	1 A	700 mV @ 1 A	≤500 ns	DO-214AA (SMB)	Active
B150Q-13-F	Diodes Incorporated	Schottky	50 V	1 A	700 mV @ 1 A	≤500 ns	DO-214AC (SMA)	Active
B250AQ-13-F	Diodes Incorporated	Schottky	50 V	2 A	700 mV @ 2 A	≤500 ns	DO-214AC (SMA)	Active
B350A-E3/5AT	Vishay General Semiconductor - Diodes Division	Schottky	50 V	3 A	720 mV @ 3 A	≤500 ns	DO-214AC (SMA)	Active
B350A-E3/61T	Vishay General Semiconductor - Diodes Division	Schottky	50 V	3 A	720 mV @ 3 A	≤500 ns	DO-214AC (SMA)	Active

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalents):

ES2AA and ES2AAH are parametric equivalents to the discontinued ES2AA M2G. Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications: 50 V reverse voltage, 2 A average rectified current, 950 mV forward voltage at 2 A, and 35 ns reverse recovery time. Both are packaged in DO-214AC (SMA) and maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). ES2AA is available in active product status with 10,100 pieces in stock. ES2AAH is also active with automotive-grade qualification (AEC-Q101) and 850 pieces in stock. Either part provides direct functional replacement without circuit modification.

Current-Matched Schottky Alternative:

B250AQ-13-F is a Schottky diode rated for 50 V reverse voltage and 2 A average rectified current in DO-214AC (SMA) package, matching the current specification of the ES2AA M2G. This part exhibits 700 mV forward voltage at 2 A (250 mV lower than the standard rectifier), resulting in reduced power dissipation. B250AQ-13-F carries automotive-grade qualification (AEC-Q101) and is available with 1,105 pieces in stock. This selection is appropriate for applications where lower forward voltage drop provides thermal or efficiency benefits.

Higher Current Schottky Options:

B350A-E3/5AT and B350A-E3/61T are Schottky diodes rated for 50 V reverse voltage and 3 A average rectified current in DO-214AC (SMA) package. These parts are suitable for applications requiring current capacity exceeding 2 A. Both maintain fast recovery characteristics and are available in high stock quantities (20,100 and 4,664 pieces respectively).

Lower Current Schottky Options:

B150-13-F, B150-E3/5AT, B150-E3/61T, and B150Q-13-F are Schottky diodes rated for 50 V reverse voltage and 1 A average rectified current in DO-214AC (SMA) package. These parts are suitable for applications where current requirements are limited to 1 A or less. B150Q-13-F includes automotive-grade qualification (AEC-Q101).

Package Consideration:

B150B-13-F is a Schottky diode with identical electrical specifications to other B150 variants but packaged in DO-214AA (SMB) instead of DO-214AC (SMA). This part is suitable only for applications where SMB package footprint is acceptable.

Frequently Asked Questions (FAQ)

Q: Can ES2AA be used as a direct replacement for ES2AA M2G?

A: Yes. ES2AA is a parametric equivalent with identical electrical specifications (50 V, 2 A, 950 mV forward voltage, 35 ns recovery time) and DO-214AC (SMA) package. The primary difference is product status: ES2AA M2G is discontinued while ES2AA is active. No circuit modification is required.

Q: What is the difference between ES2AAH and ES2AA?

A: Both parts are parametric equivalents with identical electrical specifications and packaging. ES2AAH includes automotive-grade qualification (AEC-Q101), making it suitable for automotive applications requiring this certification. Standard ES2AA does not carry automotive qualification.

Q: Can Schottky diodes (B-series) replace the standard rectifier ES2AA M2G?

A: Schottky diodes can replace standard rectifiers when the 50 V reverse voltage and package specifications are maintained. The primary advantage is lower forward voltage drop (700 mV typical for Schottky versus 950 mV for standard rectifier), reducing power dissipation. Current rating must match or exceed application requirements. Schottky diodes exhibit higher reverse leakage current, which may affect circuit performance in high-impedance applications.

Q: What is the current rating difference between B150 and B250AQ-13-F?

A: B150 series is rated for 1 A average rectified current, while B250AQ-13-F is rated for 2 A. B250AQ-13-F matches the 2 A specification of the ES2AA M2G. Selection depends on actual circuit current requirements.

Q: Why does B150B-13-F have a different package than other B150 variants?

A: B150B-13-F is packaged in DO-214AA (SMB), a larger surface mount package, while other B150 variants use DO-214AC (SMA). SMB package provides greater thermal dissipation capability but requires different PCB footprint. Use B150B-13-F only if SMB package is compatible with board layout.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the environmental compliance of the ES2AA M2G.

Q: What does AEC-Q101 qualification indicate?

A: AEC-Q101 is an automotive electronics qualification standard. Parts carrying this qualification (ES2AAH, B150Q-13-F, B250AQ-13-F) are approved for automotive applications and undergo additional reliability testing. Use AEC-Q101 qualified parts for automotive designs requiring this certification.

Q: Can B350A series (3 A rating) be used in place of ES2AA M2G (2 A rating)?

A: Yes, from an electrical compatibility standpoint. B350A series maintains 50 V reverse voltage and DO-214AC (SMA) package. The higher 3 A current rating provides additional capacity without affecting circuit operation at 2 A or lower. This selection is appropriate when future design margin or current growth is anticipated.

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

A: Reverse recovery time determines switching speed. The ES2AA M2G has 35 ns recovery time, while Schottky alternatives have ≤500 ns recovery time. Lower recovery time enables faster switching and reduced switching losses in high-frequency applications. For low-frequency rectification, this difference is not significant.

Q: How does forward voltage drop affect component selection?

A: Forward voltage drop directly impacts power dissipation and heat generation. Standard rectifiers (ES2AA M2G: 950 mV) dissipate more power than Schottky diodes (B-series: 700-750 mV). In high-current or high-frequency applications, Schottky selection reduces thermal load. In low-current applications, this difference is negligible.

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