SS15 M2G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS15 M2G is a 50V, 1A Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation in a DO-214AC (SMA) surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and production needs. Schottky diodes in this voltage and current class are widely used in power supply circuits, reverse polarity protection, and high-frequency rectification applications where fast recovery characteristics are essential.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	50	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) Maximum @ If	750 mV @ 1 A	mV
Speed - Fast Recovery	≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	200	µA @ 50 V
Technology	Schottky	—
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55°C to 150°C	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SS15 M2G is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) Maximum: 50V minimum
Current - Average Rectified (Io): 1A minimum
Technology: Schottky
Package / Case: DO-214AC (SMA) or compatible surface mount package
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Parametric Equivalent Classification: Parts meeting all primary criteria with identical electrical specifications are classified as parametric equivalents. The SS15 R3G from Taiwan Semiconductor Corporation qualifies as a parametric equivalent, differing only in packaging format (Cut Tape versus standard packaging).

Direct Manufacturer Substitute Classification: Parts from alternative manufacturers (Diodes Incorporated, Vishay General Semiconductor) that meet the 50V, 1A core requirements are classified as direct substitutes. These include B150-13-F, B150-E3/5AT, and B150-E3/61T, which maintain identical voltage and current ratings in the same DO-214AC (SMA) package.

Similar Part Classification: Parts with higher current ratings (B250AQ-13-F at 2A, B350A-E3/5AT and B350A-E3/61T at 3A) or different voltage ratings (BYS10-45-E3/TR at 45V, 1.5A) are classified as similar parts. These may be used in applications where the higher current or voltage capability provides design margin, provided circuit requirements permit the substitution.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ If (mV)	Reverse Leakage @ Vr (µA)	Package	Product Status	Temp Range (°C)
SS15 M2G	Taiwan Semiconductor Corporation	50	1	750 @ 1A	200 @ 50V	DO-214AC (SMA)	Discontinued	-55 to 150
SS15 R3G	Taiwan Semiconductor Corporation	50	1	750 @ 1A	200 @ 50V	DO-214AC (SMA)	Discontinued	-55 to 150
B150-13-F	Diodes Incorporated	50	1	700 @ 1A	500 @ 50V	DO-214AC (SMA)	Active	-65 to 150
B150-E3/5AT	Vishay General Semiconductor	50	1	750 @ 1A	200 @ 50V	DO-214AC (SMA)	Active	-65 to 150
B150-E3/61T	Vishay General Semiconductor	50	1	750 @ 1A	200 @ 50V	DO-214AC (SMA)	Active	-65 to 150
B150-13-F	Diodes Incorporated	50	1	700 @ 1A	500 @ 50V	DO-214AC (SMA)	Active	-65 to 150
B150Q-13-F	Diodes Incorporated	50	1	700 @ 1A	500 @ 40V	DO-214AC (SMA)	Active	-65 to 150
B150B-13-F	Diodes Incorporated	50	1	700 @ 1A	500 @ 50V	DO-214AA (SMB)	Active	-65 to 150
B250AQ-13-F	Diodes Incorporated	50	2	700 @ 2A	500 @ 50V	DO-214AC (SMA)	Active	-65 to 150
B350A-E3/5AT	Vishay General Semiconductor	50	3	720 @ 3A	200 @ 50V	DO-214AC (SMA)	Active	-55 to 150
B350A-E3/61T	Vishay General Semiconductor	50	3	720 @ 3A	200 @ 50V	DO-214AC (SMA)	Active	-55 to 150
BYS10-45-E3/TR	Vishay General Semiconductor	45	1.5	500 @ 1A	500 @ 45V	DO-214AC (SMA)	Active	-65 to 150

Engineering Selection Recommendations

Recommended Direct Substitutes (Active Product Status):

For applications requiring exact electrical and mechanical compatibility with the discontinued SS15 M2G, the following parts are recommended:

B150-E3/5AT (Vishay General Semiconductor): Maintains identical forward voltage (750 mV @ 1A), reverse leakage (200 µA @ 50V), and reverse voltage (50V) specifications. Active product status with extended temperature range (-65°C to 150°C). ROHS3 compliant.
B150-E3/61T (Vishay General Semiconductor): Identical electrical specifications to B150-E3/5AT with higher inventory availability (10,972 pcs). Active product status. ROHS3 compliant.

Alternative Substitutes (Active Product Status, Minor Parameter Variations):

B150-13-F (Diodes Incorporated): Meets 50V, 1A core requirements. Forward voltage is 700 mV @ 1A (50 mV lower than original), and reverse leakage is 500 µA @ 50V (300 µA higher than original). Active product status with extended temperature range. ROHS3 compliant. Suitable for applications where lower forward voltage drop is beneficial.
B150Q-13-F (Diodes Incorporated): Automotive-qualified (AEC-Q101) variant with identical electrical specifications to B150-13-F. Active product status. ROHS3 compliant. Recommended for automotive and high-reliability applications.

Higher Current Capacity Alternatives (Design Margin Applications):

B250AQ-13-F (Diodes Incorporated): 50V, 2A Schottky diode in DO-214AC (SMA) package. Automotive-qualified (AEC-Q101). Active product status. Suitable for applications requiring additional current margin while maintaining the same package footprint.
B350A-E3/5AT and B350A-E3/61T (Vishay General Semiconductor): 50V, 3A Schottky diodes in DO-214AC (SMA) package. Active product status. Suitable for applications requiring significant current margin.

Lower Voltage Alternative (Reduced Voltage Applications):

BYS10-45-E3/TR (Vishay General Semiconductor): 45V, 1.5A Schottky diode. Lower forward voltage (500 mV @ 1A) and higher reverse leakage (500 µA @ 45V). Active product status. Suitable only for applications with maximum operating voltage of 45V or lower.

All recommended substitutes maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity, and surface mount DO-214AC (SMA) package compatibility with the original SS15 M2G.

Frequently Asked Questions (FAQ)

Q: Can B150-13-F be used as a direct replacement for SS15 M2G?

A: B150-13-F meets the core electrical requirements (50V, 1A, Schottky technology) and uses the same DO-214AC (SMA) package. However, it has a lower forward voltage (700 mV versus 750 mV) and higher reverse leakage (500 µA versus 200 µA). These differences are within typical design tolerances for most applications. Verification against specific circuit requirements is necessary.

Q: What is the difference between B150-E3/5AT and B150-E3/61T?

A: Both parts are manufactured by Vishay General Semiconductor with identical electrical specifications (50V, 1A, 750 mV forward voltage, 200 µA reverse leakage). The primary difference is packaging format and inventory availability. B150-E3/61T has significantly higher inventory (10,972 pcs versus 804 pcs). Both are active products suitable for direct substitution.

Q: Why does B150Q-13-F have a different reverse leakage specification?

A: B150Q-13-F specifies reverse leakage as 500 µA @ 40V rather than @ 50V. This is a measurement condition difference, not a functional limitation. The part maintains 50V reverse voltage rating and is automotive-qualified (AEC-Q101), making it suitable for high-reliability applications.

Q: Can I use B250AQ-13-F or B350A-E3/5AT in place of SS15 M2G?

A: Yes, these higher current-rated parts (2A and 3A respectively) are electrically compatible and use the same DO-214AC (SMA) package. They are suitable for applications where additional current margin is desired. However, they should not be used in current-limited circuits where the lower 1A rating is a design requirement.

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

A: DO-214AC (SMA) and DO-214AA (SMB) are different surface mount packages with different footprints and current handling capabilities. B150B-13-F uses the larger SMB package. Direct substitution requires PCB layout compatibility. The SMA package (DO-214AC) is recommended for designs originally specified for SS15 M2G.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed in this reference are ROHS3 compliant and have MSL 1 (Unlimited) moisture sensitivity level, matching the original SS15 M2G specifications.

Q: Which substitute has the lowest forward voltage drop?

A: BYS10-45-E3/TR has the lowest forward voltage at 500 mV @ 1A. However, it is rated for 45V maximum reverse voltage, making it unsuitable for applications requiring 50V rating. Among 50V-rated substitutes, B150-13-F and B150Q-13-F have the lowest forward voltage at 700 mV @ 1A.

Q: What is the temperature operating range difference between SS15 M2G and its substitutes?

A: SS15 M2G operates from -55°C to 150°C. Most active substitutes (B150-13-F, B150-E3/5AT, B150-E3/61T, B150Q-13-F, B250AQ-13-F) operate from -65°C to 150°C, providing extended low-temperature capability. B350A-E3/5AT and B350A-E3/61T match the original -55°C to 150°C range.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message