SK16-13 Equivalent & Substitute Parts

Part Overview

The SK16-13 is a Schottky rectifier diode rated for 60 V DC reverse voltage and 1 A average rectified current in a surface mount SMB (DO-214AA) package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives. Substitute parts must maintain the same voltage rating, current capacity, and package compatibility while meeting current product availability and compliance requirements.

Key Parameters

Parameter	Value
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	60 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 125°C
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts are grouped into two categories based on electrical and mechanical compatibility with the SK16-13:

Category 1: Direct Electrical Equivalents (60 V, 1 A Rating)

Parts in this category maintain identical voltage and current ratings, enabling direct replacement in applications designed for the SK16-13. These parts satisfy the core electrical parameters: 60 V DC reverse voltage maximum and 1 A average rectified current. Package compatibility is maintained through DO-214AA/SMB form factor.

Category 2: Higher Current Rated Alternatives (60 V, 3 A Rating)

Parts in this category provide the same 60 V voltage rating but with increased current capacity (3 A). These parts are electrically compatible in applications where the SK16-13 operates below its 1 A maximum rating, as the higher current rating does not restrict operation at lower currents. Package compatibility remains within the DO-214AA/SMB family.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 60 V (required)
Technology: Schottky (required)
Package / Case: DO-214AA or SMB (required)
Mounting Type: Surface Mount (required)
Current - Average Rectified (Io): 1 A minimum (required for Category 1); 3 A acceptable for Category 2

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (A)	Vf (Max) @ If	Package	Product Status	RoHS Status
SK16-13	Diodes Incorporated	60 V	1 A	700 mV @ 1 A	DO-214AA, SMB	Discontinued	RoHS non-compliant
CDBB160-G	Comchip Technology	60 V	1 A	700 mV @ 1 A	DO-214AA, SMB	Active	ROHS3 Compliant
PMEG6010EP,115	Nexperia USA Inc.	60 V	1 A	530 mV @ 1 A	SOD-128	Active	ROHS3 Compliant
SK36B-LTP	Micro Commercial Co	60 V	3 A	750 mV @ 3 A	DO-214AA, HSMB	Active	ROHS3 Compliant
STPS160U	STMicroelectronics	60 V	1 A	670 mV @ 1 A	DO-214AA, SMB	Active	ROHS3 Compliant
STPS3L60U	STMicroelectronics	60 V	3 A	620 mV @ 3 A	DO-214AA, SMB	Active	ROHS3 Compliant
STPS3L60UY	STMicroelectronics	60 V	3 A	620 mV @ 3 A	DO-214AA, SMB	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Rating):

CDBB160-G and STPS160U are direct electrical equivalents to the SK16-13, both rated for 60 V and 1 A with SMB package compatibility. CDBB160-G maintains identical forward voltage characteristics (700 mV @ 1 A) and is available in active production status with ROHS3 compliance. STPS160U offers improved forward voltage performance (670 mV @ 1 A) and is available in high inventory quantities.

For Applications Requiring Higher Current Capacity:

SK36B-LTP, STPS3L60U, and STPS3L60UY provide 3 A current ratings while maintaining 60 V voltage compatibility. These parts are suitable for applications where the SK16-13 operates below its maximum rating or where future design margin is required. All three are in active production with ROHS3 compliance.

For Compact Package Requirements:

PMEG6010EP,115 provides a 60 V, 1 A rating in a smaller SOD-128 package footprint. This part offers superior forward voltage performance (530 mV @ 1 A) and lower reverse leakage current (60 µA @ 60 V) compared to the SK16-13. Package selection should be based on PCB layout constraints, as SOD-128 differs from the SMB form factor.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant, addressing the RoHS non-compliance status of the discontinued SK16-13. Selection should account for system-level compliance requirements and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can CDBB160-G be used as a direct replacement for SK16-13?

A: Yes. CDBB160-G is electrically and mechanically equivalent to SK16-13, with identical 60 V voltage rating, 1 A current rating, and SMB package. Both parts exhibit 700 mV forward voltage at 1 A. CDBB160-G is in active production with ROHS3 compliance.

Q: What is the difference between the 1 A and 3 A rated parts?

A: The 1 A rated parts (CDBB160-G, STPS160U) are designed for applications requiring up to 1 A average rectified current. The 3 A rated parts (SK36B-LTP, STPS3L60U, STPS3L60UY) accommodate higher current demands. Both ratings maintain the same 60 V voltage specification. A 3 A rated part operates correctly in a 1 A application but occupies additional PCB space.

Q: Why does PMEG6010EP,115 have a different package designation?

A: PMEG6010EP,115 uses SOD-128 package geometry, which differs from the SMB (DO-214AA) package of the SK16-13. SOD-128 is a smaller form factor suitable for space-constrained designs. PCB layout modifications are required for this substitution.

Q: What does ROHS3 compliance mean for the substitute parts?

A: ROHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive, restricting lead and other hazardous materials. The SK16-13 is RoHS non-compliant, while all listed substitutes are ROHS3 compliant, meeting current environmental regulations.

Q: Are STPS3L60U and STPS3L60UY interchangeable?

A: STPS3L60U and STPS3L60UY are electrically identical 60 V, 3 A Schottky diodes with SMB packages. STPS3L60UY includes automotive-grade qualification (AEC-Q101) and operates across -40°C to 150°C, while STPS3L60U specifications do not specify automotive qualification. Selection depends on application requirements.

Q: Can I use a higher voltage rated part as a substitute?

A: Substitution requires matching or exceeding the voltage rating. Parts rated above 60 V are not listed as substitutes because they introduce unnecessary design margin and potential cost increases. The SK16-13 application is designed for 60 V operation.

Q: What is the significance of forward voltage differences between parts?

A: Forward voltage (Vf) affects power dissipation and circuit performance. STPS160U (670 mV @ 1 A) and STPS3L60U (620 mV @ 3 A) exhibit lower forward voltage than SK16-13 (700 mV @ 1 A), resulting in reduced heat generation. PMEG6010EP,115 provides the lowest forward voltage (530 mV @ 1 A). Circuit design should account for these differences in thermal and efficiency calculations.

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

A: This specification indicates the diode's reverse recovery time is 500 nanoseconds or less when switching from forward to reverse bias at currents exceeding 200 mA. All listed substitutes meet this fast recovery specification, ensuring compatibility in high-frequency switching applications.

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