SK515C Schottky Diode Equivalent & Substitute Parts

Part Overview

The SK515C is a surface mount Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 150 V DC reverse voltage and 5 A average rectified current in a DO-214AB (SMC) package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the primary SK515C experiences supply discontinuation, extended lead times, or inventory constraints. Alternative qualified parts maintain electrical and mechanical compatibility within the specified parameter ranges for this Schottky diode category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	150	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) Maximum @ If	950	mV @ 5 A
Speed - Fast Recovery	≤ 500	ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	300	µA @ 150 V
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-214AB, SMC	Surface Mount
Technology	Schottky	Rectifier Type

Substitute Part Grouping Explanation

Substitution eligibility for the SK515C is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Voltage - DC Reverse (Vr) Maximum: 150 V
Current - Average Rectified (Io): 5 A
Package / Case: DO-214AB, SMC (Surface Mount)
Technology: Schottky
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Acceptable Variation Parameters:

Voltage - Forward (Vf) Maximum @ If: Within manufacturer specification range
Current - Reverse Leakage @ Vr: Within manufacturer specification range
Operating Temperature - Junction: Equal to or exceeding the main part range
RoHS3 Compliance: Required for all substitutes

The substitute parts are grouped into three categories based on their relationship to the SK515C:

Parametric Equivalent: SK515C V7G maintains identical electrical specifications and represents a direct parametric match with discontinued product status at DiGi Electronics.

Direct Manufacturer Part: SK515 is the base product number variant from SMC Diode Solutions, sharing the same package and voltage rating with minor specification variations in forward voltage and reverse leakage.

Similar Manufacturer Part: MB515_R1_00001 from Panjit International Inc. meets all mandatory equivalence parameters with enhanced temperature range and improved reverse leakage characteristics.

Parameter Comparison

Parameter	SK515C	SK515C V7G	SK515	MB515_R1_00001
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	SMC Diode Solutions	Panjit International Inc.
Voltage - DC Reverse (Vr) Max	150 V	150 V	150 V	150 V
Current - Average Rectified (Io)	5 A	5 A	Not specified	5 A
Voltage - Forward (Vf) Max @ If	950 mV @ 5 A	950 mV @ 5 A	930 mV @ 5 A	900 mV @ 5 A
Speed - Fast Recovery	≤ 500 ns, > 200 mA	≤ 500 ns, > 200 mA	≤ 500 ns, > 200 mA	≤ 500 ns, > 200 mA
Current - Reverse Leakage @ Vr	300 µA @ 150 V	300 µA @ 150 V	1 mA @ 150 V	50 µA @ 150 V
Operating Temperature - Junction	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C	-65 to 175 °C
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Technology	Schottky	Schottky	Schottky	Schottky
RoHS3 Compliance	Compliant	Compliant	Compliant	Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Discontinued at DiGi Electronics	Active	Active

Engineering Selection Recommendations

SK515C V7G is a parametric equivalent with identical electrical specifications. Selection of this part is limited by its discontinued product status at DiGi Electronics, making it unsuitable for new designs or long-term supply assurance despite full RoHS3 compliance and unlimited MSL rating.

SK515 from SMC Diode Solutions is an Active product offering improved forward voltage performance (930 mV versus 950 mV at 5 A). However, the average rectified current is not specified in the datasheet, and reverse leakage is elevated at 1 mA compared to the SK515C specification of 300 µA. This part is suitable for applications where forward voltage reduction is beneficial and reverse leakage tolerance is acceptable. REACH status is listed as Affected, requiring compliance verification for specific end-use applications.

MB515_R1_00001 from Panjit International Inc. is an Active product meeting all mandatory equivalence parameters with superior performance characteristics: forward voltage of 900 mV (50 mV improvement), reverse leakage of 50 µA (superior to SK515C), and extended operating temperature range of -65 to 175 °C. This part provides the broadest thermal operating window and lowest reverse leakage among all substitutes. REACH status is Unaffected, eliminating compliance concerns for regulated applications.

For new designs and applications requiring maximum supply continuity, MB515_R1_00001 is the preferred substitute. For existing designs with established SK515C qualification, SK515 provides an acceptable alternative with documented performance trade-offs.

Frequently Asked Questions (FAQ)

Q: Can SK515C V7G be used as a direct replacement for SK515C?

A: SK515C V7G is a parametric equivalent with identical electrical specifications. However, this part is discontinued at DiGi Electronics, making it unsuitable for production applications requiring ongoing supply assurance. Use only for legacy system maintenance where existing inventory is available.

Q: What are the key differences between SK515 and SK515C?

A: Both parts share the same 150 V reverse voltage rating, DO-214AB package, and fast recovery Schottky technology. SK515 offers lower forward voltage (930 mV versus 950 mV at 5 A) but has higher reverse leakage (1 mA versus 300 µA at 150 V). The average rectified current for SK515 is not specified in available documentation. Selection depends on whether forward voltage reduction or reverse leakage performance is prioritized for the application.

Q: Is MB515_R1_00001 compatible with SK515C in all applications?

A: MB515_R1_00001 meets all mandatory equivalence parameters: 150 V reverse voltage, 5 A average rectified current, DO-214AB package, and Schottky technology. It provides superior performance with lower forward voltage (900 mV), lower reverse leakage (50 µA), and extended temperature range (-65 to 175 °C). Compatibility is confirmed for all applications within the SK515C electrical and thermal specifications.

Q: What is the significance of the DO-214AB (SMC) package designation?

A: DO-214AB is the industry-standard surface mount package for Schottky rectifier diodes in this current and voltage class. All substitute parts use identical package geometry and land pattern, ensuring direct PCB compatibility without layout modifications. SMC is the alternate designation for this package type.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed (SK515C V7G, SK515, and MB515_R1_00001) are RoHS3 compliant. Moisture sensitivity level is MSL 1 (Unlimited) for all parts, indicating no special storage or handling requirements.

Q: What does "Fast Recovery ≤ 500 ns, > 200 mA (Io)" mean?

A: This specification indicates the diode exhibits fast recovery characteristics with reverse recovery time not exceeding 500 nanoseconds when switching currents greater than 200 milliamps. All substitute parts meet this specification, ensuring compatible switching performance in rectification and protection circuits.

Q: Why is reverse leakage current important in substitute selection?

A: Reverse leakage current affects standby power consumption and circuit performance in high-impedance applications. MB515_R1_00001 offers the lowest reverse leakage at 50 µA, while SK515 exhibits elevated leakage at 1 mA. For applications sensitive to leakage current, MB515_R1_00001 is the superior choice.

Q: What is the impact of the extended temperature range in MB515_R1_00001?

A: MB515_R1_00001 operates from -65 to 175 °C compared to -55 to 150 °C for SK515C. The extended range provides additional margin for high-temperature applications and industrial environments. This specification does not affect compatibility in applications operating within the SK515C temperature range.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message