SS15E-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS15E-TP is a 50V, 1A Schottky rectifier diode manufactured by Micro Commercial Co in a surface mount DO-214AC (SMA) package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. Schottky diodes in this voltage and current class are widely used in power supply circuits, reverse polarity protection, and high-frequency switching applications where fast recovery characteristics are essential.

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
Capacitance @ Vr, F	110	pF @ 4V, 1MHz
Mounting Type	Surface Mount	—
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SS15E-TP is determined by the following critical parameters:

Parametric Equivalents (Direct Substitutes): Parts that maintain identical or superior electrical characteristics within the same voltage and current ratings. These parts must satisfy:

Voltage - DC Reverse (Vr) (Max): 50V minimum
Current - Average Rectified (Io): 1A minimum
Voltage - Forward (Vf) (Max) @ If: 700 mV @ 1A or lower
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case: DO-214AC, SMA (surface mount compatibility)
Operating Temperature - Junction: -55°C to 150°C minimum
RoHS3 Compliance and MSL 1 rating

Functional Substitutes (Higher Voltage Rating): Parts that exceed the voltage specification while maintaining all other electrical and mechanical parameters. These provide design margin and are suitable for applications where higher reverse voltage tolerance is acceptable.

Parameter Comparison

Parameter	SS15E-TP (Main)	SS15_R1_00001	SS15W_R1_00001	SS16-LTP
Manufacturer	Micro Commercial Co	Panjit International Inc.	Panjit International Inc.	Micro Commercial Co
Product Status	Obsolete	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	60 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 1 A	700 mV @ 1 A	700 mV @ 1 A	700 mV @ 1 A
Speed - Fast Recovery	≤ 500ns, > 200mA (Io)	≤ 500ns, > 200mA (Io)	≤ 500ns, > 200mA (Io)	≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 50 V	100 µA @ 50 V	500 µA @ 50 V	500 µA @ 60 V
Capacitance @ Vr, F	110 pF @ 4V, 1MHz	50 pF @ 4V, 1MHz	Not Specified	110 pF @ 4V, 1MHz
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Not Specified	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Equivalent - SS15_R1_00001 (Panjit International Inc.): This part is the preferred direct equivalent. It maintains the 50V reverse voltage specification and 1A current rating identical to the SS15E-TP. The reverse leakage current is 100 µA at 50V, which is superior to the original specification of 500 µA. The capacitance is 50 pF at 4V, 1MHz, which is lower than the original 110 pF, providing improved high-frequency performance. The part is active in production with 1742 pieces in stock. RoHS3 compliance and MSL 1 rating are maintained.

Secondary Equivalent - SS15W_R1_00001 (Panjit International Inc.): This part provides parametric equivalence with identical voltage, current, and forward voltage specifications. Reverse leakage current matches the original specification at 500 µA. Capacitance is not specified in the available data. The part is active with 986 pieces in stock. RoHS3 compliance and MSL 1 rating are maintained. This option is suitable where the original capacitance specification is not critical.

Functional Substitute - SS16-LTP (Micro Commercial Co): This part offers a higher reverse voltage rating of 60V while maintaining all other electrical parameters. Forward voltage, current rating, recovery speed, and temperature range are identical to the SS15E-TP. Reverse leakage current is 500 µA at 60V. Capacitance matches the original at 110 pF. This part is manufactured by the same original manufacturer and is active in production with 55100 pieces in stock. The higher voltage rating provides additional design margin for applications where reverse voltage stress may approach the 50V limit. RoHS3 compliance and MSL 1 rating are maintained.

All substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance profile.

Frequently Asked Questions (FAQ)

Q: Can SS15_R1_00001 be used as a direct replacement for SS15E-TP?

A: Yes. SS15_R1_00001 is a parametric equivalent with identical voltage and current ratings. The 50V reverse voltage specification, 1A current rating, 700 mV forward voltage at 1A, and fast recovery characteristics match the original part. The reverse leakage current is actually lower at 100 µA compared to the original 500 µA, and the capacitance is reduced to 50 pF, which may improve high-frequency performance. Both parts use the DO-214AC (SMA) surface mount package.

Q: What is the difference between SS15W_R1_00001 and SS15_R1_00001?

A: Both parts are parametric equivalents manufactured by Panjit International Inc. with identical voltage, current, and forward voltage specifications. The primary difference is that SS15_R1_00001 specifies a reverse leakage current of 100 µA and capacitance of 50 pF, while SS15W_R1_00001 specifies 500 µA reverse leakage current with capacitance not specified. SS15_R1_00001 offers superior leakage and capacitance characteristics.

Q: When should SS16-LTP be selected instead of the parametric equivalents?

A: SS16-LTP should be selected when the application requires higher reverse voltage tolerance or when design margin for voltage stress is necessary. The 60V rating provides 10V additional headroom compared to the 50V specification of the SS15E-TP. All other electrical characteristics remain identical. This part is manufactured by Micro Commercial Co, the original manufacturer of the SS15E-TP.

Q: Are all substitute parts compatible with the original PCB layout?

A: Yes. All substitute parts use the DO-214AC (SMA) surface mount package, which is mechanically and electrically compatible with the original SS15E-TP package footprint. No PCB modifications are required for substitution.

Q: Do the substitute parts meet the same environmental and compliance standards?

A: Yes. All substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part. REACH status is unaffected for all parts. ECCN and HTSUS classifications are identical.

Q: What is the inventory status of each substitute part?

A: SS15_R1_00001 has 1742 pieces in stock, SS15W_R1_00001 has 986 pieces in stock, and SS16-LTP has 55100 pieces in stock. All parts are available as new original components.

Q: Can these parts be used interchangeably in the same circuit?

A: Yes, within the electrical specifications of the circuit. If the circuit is designed for 50V reverse voltage operation, SS15_R1_00001 and SS15W_R1_00001 are direct substitutes. SS16-LTP can be used in any circuit designed for the SS15E-TP, as the higher voltage rating is backward compatible. However, if the circuit specifically requires the original capacitance value of 110 pF, SS16-LTP or SS15W_R1_00001 should be selected over SS15_R1_00001.

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