SS15-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS15-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 1 A average rectified current in a DO-214AC (SMA) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain electrical compatibility within the specified voltage, current, and thermal operating ranges while accommodating potential package variations.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500 µA @ 50 V	µA
Operating Temperature - Junction	-55°C ~ 125°C	°C
Package / Case	DO-214AC, SMA	—
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SS15-TP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 50 V
Current - Average Rectified (Io): Must equal or exceed 1 A
Technology: Schottky rectifier diode
Mounting Type: Surface Mount
RoHS Compliance: ROHS3 Compliant

Secondary Compatibility Factors:

Forward voltage (Vf) characteristics
Reverse leakage current (Ir)
Operating temperature range
Package form factor (DO-214AC/SMA or equivalent)

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents (50 V / 1 A Rating): Parts that maintain the exact voltage and current specifications of the SS15-TP, enabling direct substitution in applications where the original specifications are required.

Category B - Enhanced Specification Alternatives (≥50 V / 1 A Rating): Parts that exceed the voltage or current specifications of the SS15-TP, suitable for applications where higher voltage or current ratings provide design margin or component availability advantages.

Parameter Comparison

Parameter	SS15-TP (Main)	B150-13-F	PMEG6010ER,115	PMEG6010ETR,115	SS15	STPS1L40A
Manufacturer	Micro Commercial Co	Diodes Incorporated	Nexperia USA Inc.	Nexperia USA Inc.	Taiwan Semiconductor Corporation	STMicroelectronics
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	60 V	60 V	50 V	40 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 1 A	700 mV @ 1 A	530 mV @ 1 A	530 mV @ 1 A	750 mV @ 1 A	500 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 50 V	500 µA @ 50 V	60 µA @ 60 V	60 µA @ 60 V	200 µA @ 50 V	35 µA @ 40 V
Operating Temperature - Junction	-55°C ~ 125°C	-65°C ~ 150°C	150°C (Max)	175°C (Max)	-55°C ~ 150°C	150°C (Max)
Package / Case	DO-214AC, SMA	DO-214AC, SMA	SOD-123W	SOD-123W	DO-214AC, SMA	DO-214AC, SMA
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Category A - Direct Electrical Equivalents (Recommended Primary Substitutes):

B150-13-F (Diodes Incorporated): This part maintains identical voltage (50 V) and current (1 A) specifications with matching forward voltage characteristics (700 mV @ 1 A). The part is in active production status with substantial inventory availability (25,400 pcs). Operating temperature range extends to 150°C, exceeding the original specification. Package compatibility is confirmed as DO-214AC/SMA. ROHS3 compliance and MSL rating are equivalent. This part is suitable for direct substitution in applications requiring the original 50 V / 1 A rating.

SS15 (Taiwan Semiconductor Corporation): This part provides identical voltage (50 V) and current (1 A) specifications in the same DO-214AC/SMA package. Forward voltage is slightly elevated at 750 mV @ 1 A compared to the original 700 mV specification. Reverse leakage current is lower at 200 µA @ 50 V versus 500 µA. Operating temperature range extends to 150°C. The part is in active production with high inventory availability (50,950 pcs). ROHS3 compliance and MSL rating are equivalent. This part is suitable for direct substitution where the slightly higher forward voltage is acceptable.

Category B - Enhanced Specification Alternatives:

PMEG6010ETR,115 (Nexperia USA Inc.): This part exceeds the original voltage specification at 60 V while maintaining 1 A current rating. Forward voltage is significantly lower at 530 mV @ 1 A, providing improved efficiency. Reverse leakage current is substantially reduced to 60 µA @ 60 V. Operating temperature maximum reaches 175°C. The part is in active production with high inventory (41,942 pcs). Package form factor is SOD-123W, requiring PCB layout modification. Reverse recovery time is specified at 4.4 ns. ROHS3 compliance and MSL rating are equivalent. This part is suitable for applications where higher voltage margin and improved efficiency are beneficial, provided PCB layout accommodates the SOD-123W package.

PMEG6010ER,115 (Nexperia USA Inc.): This part provides identical electrical characteristics to PMEG6010ETR,115 with 60 V voltage rating and 530 mV forward voltage. Operating temperature maximum is 150°C. Inventory availability is lower at 3,200 pcs. Package form factor is SOD-123W. ROHS3 compliance and MSL rating are equivalent. This part is suitable as an alternative to PMEG6010ETR,115 where the lower temperature maximum is acceptable.

STPS1L40A (STMicroelectronics): This part operates at a reduced voltage specification of 40 V, below the original 50 V requirement. Forward voltage is lower at 500 mV @ 1 A. Reverse leakage current is minimal at 35 µA @ 40 V. Operating temperature maximum is 150°C. The part is in active production with high inventory (55,300 pcs). Package compatibility is confirmed as DO-214AC/SMA. ROHS3 compliance and MSL rating are equivalent. This part is suitable only for applications where the circuit operates at voltages not exceeding 40 V, and is not recommended as a substitute for the original 50 V specification.

Frequently Asked Questions (FAQ)

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

A: Yes. B150-13-F maintains identical voltage (50 V) and current (1 A) specifications with equivalent forward voltage (700 mV @ 1 A) and package form factor (DO-214AC/SMA). The part is in active production status, addressing the obsolescence of the original SS15-TP. Compliance certifications are equivalent.

Q: What is the primary difference between PMEG6010ETR,115 and PMEG6010ER,115?

A: Both parts share identical electrical specifications (60 V, 1 A, 530 mV forward voltage). The primary difference is operating temperature maximum: PMEG6010ETR,115 reaches 175°C while PMEG6010ER,115 reaches 150°C. Inventory availability also differs, with PMEG6010ETR,115 having substantially higher stock (41,942 pcs versus 3,200 pcs).

Q: Why does STPS1L40A have a lower voltage rating than the original SS15-TP?

A: STPS1L40A is rated for 40 V maximum reverse voltage, which is 10 V below the original SS15-TP specification of 50 V. This part is not suitable for applications requiring the full 50 V rating and should only be considered for circuits operating at 40 V or below.

Q: Can PMEG6010ETR,115 be used in place of SS15-TP without circuit modifications?

A: PMEG6010ETR,115 provides enhanced electrical specifications (60 V rating, lower forward voltage of 530 mV) and is electrically compatible. However, the package form factor differs: PMEG6010ETR,115 uses SOD-123W while SS15-TP uses DO-214AC/SMA. PCB layout and footprint modifications are required for physical installation.

Q: What is the significance of the lower forward voltage in PMEG6010ETR,115 and PMEG6010ER,115?

A: Forward voltage of 530 mV @ 1 A in these parts is substantially lower than the original 700 mV specification. This results in reduced power dissipation and improved efficiency in rectification applications. The lower forward voltage may require circuit analysis to confirm compatibility with existing designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (B150-13-F, PMEG6010ER,115, PMEG6010ETR,115, SS15, and STPS1L40A) are ROHS3 compliant and carry MSL rating of 1 (Unlimited), matching the compliance profile of the original SS15-TP.

Q: Which substitute part has the highest operating temperature rating?

A: PMEG6010ETR,115 has the highest operating temperature maximum at 175°C, compared to 150°C for most other substitutes and 125°C for the original SS15-TP. This extended temperature range provides additional thermal margin for high-temperature applications.

Q: What is the reverse recovery time specification, and which parts provide this data?

A: Reverse recovery time (trr) is specified only for PMEG6010ETR,115 at 4.4 ns. This parameter is not provided for other parts in the comparison. Reverse recovery time affects switching speed in high-frequency applications.

Q: Is SS15 from Taiwan Semiconductor Corporation a suitable substitute?

A: Yes. SS15 maintains the original 50 V / 1 A specifications in the same DO-214AC/SMA package. Forward voltage is slightly higher at 750 mV @ 1 A, and reverse leakage is lower at 200 µA @ 50 V. The part is in active production with high inventory availability, making it a practical substitute for the obsolete SS15-TP.

Q: What packaging options are available among the substitute parts?

A: Substitute parts are available in two package types: DO-214AC/SMA (B150-13-F, SS15, STPS1L40A) and SOD-123W (PMEG6010ER,115, PMEG6010ETR,115). Package selection depends on PCB layout compatibility and available footprint space.

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