Equivalent & Substitute Parts for DST30100C

Part Overview

The DST30100C is a Schottky diode array manufactured by Littelfuse Inc., configured as a 1 Pair Common Cathode with 100 V reverse voltage rating and 10 A average rectified current per diode. The device is packaged in TO-220-3 through-hole format and is currently Active in product status. This part is ROHS3 compliant and suitable for fast recovery rectification applications requiring 100 V blocking voltage and 10 A current handling capability. Substitute parts are identified based on matching electrical parameters, mechanical compatibility, and functional equivalence within the Schottky diode array category.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io) (per Diode)	10 A
Voltage - Forward (Vf) (Max) @ If	750 mV @ 15 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the DST30100C are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Parameters for Substitution:

Diode Configuration: 1 Pair Common Cathode (must match exactly)
Technology: Schottky (must match exactly)
Voltage - DC Reverse (Vr) (Max): 100 V (must match exactly)
Current - Average Rectified (Io) (per Diode): 10 A (must match exactly)
Mounting Type: Through Hole (must match exactly)
Package / Case: TO-220-3 (must match exactly)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (must match exactly)

Secondary Parameters (allowable variation):

Voltage - Forward (Vf) (Max) @ If: Acceptable range based on test conditions
Current - Reverse Leakage @ Vr: Lower values acceptable
Operating Temperature - Junction: Equal or extended range acceptable
RoHS Status: ROHS3 Compliant required

Parts are classified into two categories: Parametric Equivalents (exact electrical match) and Functional Substitutes (meet core requirements with acceptable parameter variations).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Io (per Diode)	Vr (Max)	Vf (Max)	Reverse Leakage @ Vr	Tj (Max)	Product Status	Package
DST30100C	Littelfuse Inc.	10 A	100 V	750 mV @ 15 A	500 µA @ 100 V	150°C	Active	TO-220-3
FYP1010DNTU	onsemi	10 A	100 V	950 mV @ 10 A	1 mA @ 100 V	150°C	Obsolete	TO-220-3
MBR10100CT-BP	Micro Commercial Co	10 A	100 V	850 mV @ 5 A	200 µA @ 100 V	150°C	Active	TO-220-3
MBR10100CT-G1	Diodes Incorporated	5 A	100 V	840 mV @ 5 A	50 µA @ 100 V	150°C	Active	TO-220-3
MBR16100CTG	onsemi	8 A	100 V	740 mV @ 8 A	100 µA @ 100 V	175°C	Obsolete	TO-220-3
MBR20100CT-BP	Micro Commercial Co	10 A	100 V	950 mV @ 20 A	150 µA @ 100 V	150°C	Active	TO-220-3
MBR20100CT-G1	Diodes Incorporated	10 A	100 V	840 mV @ 10 A	50 µA @ 100 V	175°C	Active	TO-220-3
MBR30100CT-G1	Diodes Incorporated	15 A	100 V	850 mV @ 15 A	100 µA @ 100 V	150°C	Active	TO-220-3
MBR30H100CTG	onsemi	15 A	100 V	800 mV @ 15 A	4.5 µA @ 100 V	175°C	Active	TO-220-3
MBR41H100CTG	onsemi	20 A	100 V	800 mV @ 20 A	10 µA @ 100 V	175°C	Active	TO-220-3

Engineering Selection Recommendations

Direct Parametric Equivalents (10 A @ 100 V, Active Status):

MBR20100CT-BP (Micro Commercial Co) and MBR20100CT-G1 (Diodes Incorporated) are the primary active substitutes meeting the exact 10 A current and 100 V voltage specifications. MBR20100CT-G1 includes AEC-Q101 automotive qualification and extended junction temperature rating to 175°C, providing enhanced reliability for demanding applications. Both parts maintain ROHS3 compliance and TO-220-3 packaging compatibility.

Functional Substitutes with Higher Current Ratings:

MBR30100CT-G1 (15 A @ 100 V) and MBR30H100CTG (15 A @ 100 V) provide increased current capacity while maintaining 100 V reverse voltage. MBR30H100CTG offers superior reverse leakage characteristics (4.5 µA vs. 100 µA) and extended temperature rating to 175°C. MBR41H100CTG (20 A @ 100 V) accommodates applications requiring higher current margins with the same voltage specification.

Obsolete Status Alternatives:

FYP1010DNTU (onsemi) and MBR16100CTG (onsemi) are marked Obsolete and should not be selected for new designs despite parameter compatibility. These parts present supply chain risk and long-term availability concerns.

Lower Current Rating:

MBR10100CT-G1 (5 A @ 100 V) is suitable only for applications with reduced current requirements below 10 A. This part includes AEC-Q101 qualification and extended temperature rating to 150°C.

All recommended active substitutes maintain ROHS3 compliance, through-hole mounting, and TO-220-3 packaging. Selection should prioritize active product status and compliance certifications appropriate to the application environment.

Frequently Asked Questions (FAQ)

Q: Can MBR20100CT-G1 replace DST30100C directly?

A: Yes. MBR20100CT-G1 meets all critical electrical parameters: 10 A average rectified current, 100 V reverse voltage, Schottky technology, 1 Pair Common Cathode configuration, and TO-220-3 packaging. The part is Active in product status and ROHS3 compliant. Forward voltage is 840 mV @ 10 A compared to 750 mV @ 15 A for DST30100C, representing acceptable variation within Schottky diode specifications.

Q: What is the difference between MBR20100CT-BP and MBR20100CT-G1?

A: Both parts are 10 A @ 100 V Schottky diode arrays in TO-220-3 packaging from different manufacturers (Micro Commercial Co vs. Diodes Incorporated). MBR20100CT-G1 includes AEC-Q101 automotive qualification and extended junction temperature rating to 175°C, making it suitable for automotive and high-temperature applications. MBR20100CT-BP is rated to 150°C. Both are Active in product status.

Q: Why are FYP1010DNTU and MBR16100CTG listed as Obsolete?

A: Obsolete product status indicates the manufacturer has discontinued active production and support. While these parts may meet electrical specifications, they present supply chain risk, limited availability, and potential quality assurance concerns. New designs should use Active alternatives such as MBR20100CT-G1 or MBR20100CT-BP.

Q: Can I use MBR30100CT-G1 (15 A) in place of DST30100C (10 A)?

A: Yes, with design consideration. MBR30100CT-G1 exceeds the 10 A current requirement and maintains 100 V reverse voltage, Schottky technology, and TO-220-3 packaging. Higher current rating provides design margin but does not degrade performance in 10 A applications. Forward voltage is 850 mV @ 15 A, comparable to DST30100C specifications. The part is Active and ROHS3 compliant.

Q: What does "1 Pair Common Cathode" configuration mean?

A: This describes the internal diode arrangement within the package. Two diodes share a common cathode connection, with separate anode connections. This configuration is essential for specific circuit topologies such as bridge rectifiers or synchronous switching applications. Substitutes must maintain identical configuration to ensure circuit compatibility.

Q: Are all substitute parts available in the same TO-220-3 package?

A: Yes. All listed substitute parts use TO-220-3 through-hole packaging, ensuring mechanical and thermal compatibility with DST30100C. Mounting footprint, lead spacing, and thermal interface characteristics remain consistent across all alternatives.

Q: What is the significance of reverse leakage current variation?

A: Reverse leakage current (measured at maximum reverse voltage) indicates diode quality and temperature stability. Lower leakage values, such as MBR30H100CTG (4.5 µA), represent superior performance compared to higher values like FYP1010DNTU (1 mA). For most applications, variation within the specified range is acceptable; however, precision analog circuits may require lower leakage alternatives.

Q: Does ROHS3 compliance affect substitution?

A: ROHS3 compliance is mandatory for all substitute parts in this reference. All listed alternatives maintain ROHS3 compliance, ensuring environmental and regulatory compatibility. This requirement eliminates non-compliant alternatives from consideration regardless of electrical equivalence.

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