DST560S Schottky Diode Equivalent & Substitute Parts

Part Overview

The DST560S is a 60V, 5A Schottky rectifier diode manufactured by Littelfuse Inc., housed in a TO-277B surface mount package. This component is classified as Active product status and is RoHS3 compliant. The DST560S serves as a fast recovery rectifier suitable for power conversion and switching applications requiring low forward voltage drop characteristics inherent to Schottky technology.

Substitute parts are identified based on matching or exceeding the electrical specifications of the main part while maintaining compatibility with the TO-277 package family and surface mount assembly requirements. Alternative sources and higher current-rated variants are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	60	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	750 mV @ 5 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	700 µA @ 60 V	µA
Capacitance @ Vr, F	314 pF @ 5V, 1MHz	pF
Package / Case	TO-277, 3-PowerDFN	—
Operating Temperature - Junction	-55°C ~ 150°C	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the DST560S are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalent (Direct Replacement): Parts that match all critical electrical parameters: 60V reverse voltage rating, 5A average rectified current, fast recovery speed characteristic, and identical TO-277 package configuration. These parts are interchangeable without circuit modification.

Higher Current Rating Variants (Functional Substitutes): Parts that maintain the 60V reverse voltage rating and fast recovery speed but provide increased current capacity (10A, 15A, or 20A). These parts are electrically compatible and physically compatible with the TO-277 package family. Selection depends on circuit current requirements and thermal management considerations.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 60V
Technology: Must be Schottky
Speed: Must be Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case: Must be TO-277 or 3-PowerDFN variant
Mounting Type: Must be Surface Mount
Operating Temperature Range: Must encompass -55°C ~ 150°C

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (A)	Vf (Max) @ If	Package	Product Status	RoHS Status
DST560S	Littelfuse Inc.	60V	5A	750 mV @ 5A	TO-277B	Active	ROHS3 Compliant
DST560S-A	Littelfuse Inc.	60V	5A	750 mV @ 5A	TO-277B	Active	ROHS3 Compliant
FSV560	onsemi	60V	5A	670 mV @ 5A	TO-277-3	Not For New Designs	ROHS3 Compliant
MBR10U60-TP	Micro Commercial Co	60V	10A	500 mV @ 10A	TO-277-3	Active	ROHS3 Compliant
MBR15U60-TP	Micro Commercial Co	60V	15A	500 mV @ 15A	TO-277-3	Active	ROHS3 Compliant
FSV1060V	onsemi	60V	10A	520 mV @ 10A	TO-277-3	Not For New Designs	ROHS3 Compliant
FSV2060L	onsemi	60V	20A	600 mV @ 20A	TO-277-3	Not For New Designs	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Current Rating):

DST560S-A is the primary parametric equivalent, manufactured by Littelfuse Inc. with identical electrical specifications and Active product status. This part is suitable for direct substitution in existing designs and new applications. The DST560S-A includes AEC-Q101 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

FSV560 (onsemi) provides equivalent 5A current capacity with improved forward voltage characteristics (670 mV vs. 750 mV @ 5A). However, FSV560 carries "Not For New Designs" product status, limiting its application to legacy system support or maintenance scenarios.

For Higher Current Capacity Applications:

MBR10U60-TP and MBR15U60-TP (Micro Commercial Co) are Active status parts rated for 10A and 15A respectively, with superior forward voltage performance (500 mV @ rated current). These parts accommodate higher circuit current demands while maintaining 60V reverse voltage rating and fast recovery characteristics. Selection between 10A and 15A variants depends on specific circuit current requirements.

FSV1060V (onsemi, 10A) and FSV2060L (onsemi, 20A) provide higher current alternatives but carry "Not For New Designs" status, restricting their use to legacy applications.

Compliance Considerations:

All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). The DST560S-A additionally qualifies under AEC-Q101 automotive standards, making it the preferred choice for automotive and mission-critical applications.

Frequently Asked Questions (FAQ)

Q: Can DST560S-A be used as a direct replacement for DST560S?

A: Yes. DST560S-A is a parametric equivalent with identical electrical specifications (60V, 5A, 750 mV forward voltage @ 5A) and compatible TO-277B package. Both parts are Active status and RoHS3 compliant. The DST560S-A includes additional AEC-Q101 automotive qualification.

Q: What is the difference between TO-277B and TO-277-3 packages?

A: Both designations refer to the same 3-PowerDFN surface mount package family. TO-277B and TO-277-3 are equivalent package configurations used by different manufacturers. All listed substitute parts are physically compatible with the same PCB footprint and assembly process.

Q: Can I use MBR10U60-TP (10A) in place of DST560S (5A)?

A: Yes, from an electrical compatibility standpoint. MBR10U60-TP maintains the 60V reverse voltage rating and fast recovery speed. The 10A current rating exceeds the 5A requirement, providing design margin. However, verify that the circuit design accommodates the different forward voltage characteristic (500 mV @ 10A vs. 750 mV @ 5A) and thermal dissipation profile.

Q: Why are some substitute parts marked "Not For New Designs"?

A: Parts designated "Not For New Designs" (FSV560, FSV1060V, FSV2060L) indicate that the manufacturer has discontinued active development and recommends alternative parts for new circuit designs. These parts remain available for legacy system support and maintenance but should not be selected for new product development.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and Moisture Sensitivity Level 1 (Unlimited), matching the environmental and regulatory compliance profile of the DST560S.

Q: What is the primary advantage of Schottky technology in these diodes?

A: Schottky diodes exhibit significantly lower forward voltage drop compared to conventional silicon rectifiers, resulting in reduced power dissipation and improved efficiency in switching and rectification applications. All listed parts maintain the fast recovery speed characteristic (≤ 500ns, > 200mA) essential for high-frequency switching circuits.

Q: How do I select between 5A, 10A, 15A, and 20A variants?

A: Selection is determined by the circuit's average rectified current requirement. Choose the lowest rated current that meets or exceeds your application's sustained current demand. Higher-rated parts provide thermal margin and design flexibility but may introduce unnecessary cost. Verify thermal management capability for the selected current rating.

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