SR10100 Schottky Diode Array Equivalent & Substitute Parts

Part Overview

The SR10100 is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 100 V DC reverse voltage and 10 A average rectified current per diode. The device is packaged in a TO-220-3 through-hole format and features fast recovery characteristics with a maximum forward voltage of 850 mV at 5 A. The SR10100 is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for existing applications.

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	850 mV @ 5 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 100 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SR10100 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode (mandatory)
Technology: Schottky (mandatory)
Voltage - DC Reverse (Vr) (Max): 100 V (mandatory)
Current - Average Rectified (Io) (per Diode): 10 A (mandatory for full-current equivalents)
Mounting Type: Through Hole (mandatory)
Package / Case: TO-220-3 (mandatory)

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: Must not exceed 850 mV @ 5 A for direct equivalents
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory)
Current - Reverse Leakage @ Vr: Must not exceed 100 µA @ 100 V for direct equivalents
Operating Temperature - Junction: Must encompass -55°C minimum
RoHS Status: ROHS3 Compliant (mandatory)

Substitute parts are grouped into three categories:

Parametric Equivalents: Parts with identical electrical specifications and active product status
Direct Manufacturers: Parts with matching core parameters but potentially different product status or minor specification variations
Similar Parts: Parts with reduced current ratings (5 A instead of 10 A) or alternative technologies that maintain voltage and package compatibility

Parameter Comparison

Part Number	Manufacturer	Io (per Diode)	Vf (Max) @ If	Vr (Max)	Ir @ Vr	Tj (Operating)	Product Status	Package
SR10100	Taiwan Semiconductor Corporation	10 A	850 mV @ 5 A	100 V	100 µA @ 100 V	-55°C ~ 150°C	Discontinued at DiGi Electronics	TO-220-3
SR10100HC0G	Taiwan Semiconductor Corporation	10 A	850 mV @ 5 A	100 V	100 µA @ 100 V	-55°C ~ 150°C	Active	TO-220-3
MBR10100CT	Taiwan Semiconductor Corporation	10 A	950 mV @ 10 A	100 V	100 µA @ 100 V	-55°C ~ 150°C	Discontinued at DiGi Electronics	TO-220-3
MBR10100CTP	Diodes Incorporated	5 A	850 mV @ 5 A	100 V	100 µA @ 100 V	-65°C ~ 175°C	Obsolete	TO-220-3 Isolated Tab
MBR20100CT-E3/4W	Vishay General Semiconductor - Diodes Division	10 A	800 mV @ 10 A	100 V	100 µA @ 100 V	-65°C ~ 150°C	Active	TO-220-3
MBR20100CT-M3/4W	Vishay General Semiconductor - Diodes Division	10 A	800 mV @ 10 A	100 V	100 µA @ 100 V	-65°C ~ 150°C	Active	TO-220-3
SBR10100CT	Diodes Incorporated	5 A	800 mV @ 5 A	100 V	100 µA @ 100 V	-65°C ~ 150°C	Active	TO-220-3
MBR10100CT-E3/4W	Vishay General Semiconductor - Diodes Division	5 A	850 mV @ 5 A	100 V	100 µA @ 100 V	-65°C ~ 150°C	Active	TO-220-3
MBR10100CT-G1	Diodes Incorporated	5 A	840 mV @ 5 A	100 V	50 µA @ 100 V	-55°C ~ 150°C	Active	TO-220-3
MBR10H100CT-E3/45	Vishay General Semiconductor - Diodes Division	5 A	760 mV @ 5 A	100 V	3.5 µA @ 100 V	-65°C ~ 175°C	Active	TO-220-3
MBR20100CT-BP	Micro Commercial Co	10 A	950 mV @ 20 A	100 V	150 µA @ 100 V	-55°C ~ 150°C	Active	TO-220-3

Engineering Selection Recommendations

Full-Current Equivalents (10 A Rating):

SR10100HC0G is the primary parametric equivalent with identical electrical specifications and active product status. This part is manufactured by Taiwan Semiconductor Corporation and maintains all core parameters of the original SR10100 while offering current availability.

MBR20100CT-E3/4W and MBR20100CT-M3/4W are active alternatives from Vishay General Semiconductor - Diodes Division. Both parts maintain the 10 A current rating and 100 V reverse voltage specification. The forward voltage is reduced to 800 mV @ 10 A, representing improved performance. Both parts are ROHS3 compliant and feature extended operating temperature ranges (-65°C to 150°C).

MBR20100CT-BP from Micro Commercial Co is an active alternative with 10 A rating and 100 V reverse voltage. This part exhibits higher forward voltage (950 mV @ 20 A) and reverse leakage current (150 µA @ 100 V) compared to the original specification.

Reduced-Current Alternatives (5 A Rating):

Parts rated for 5 A average rectified current per diode are suitable for applications where the full 10 A capability is not required. These include MBR10100CTP (Diodes Incorporated, obsolete status), SBR10100CT (Diodes Incorporated, active), MBR10100CT-E3/4W (Vishay, active), MBR10100CT-G1 (Diodes Incorporated, active), and MBR10H100CT-E3/45 (Vishay, active).

MBR10H100CT-E3/45 offers the lowest forward voltage (760 mV @ 5 A) and reverse leakage current (3.5 µA @ 100 V) among 5 A alternatives, with extended temperature range (-65°C to 175°C).

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. Parts designated with automotive qualifications (SR10100HC0G with AEC-Q101, MBR10100CT-G1 with AEC-Q101) are suitable for automotive applications requiring specific reliability standards.

Frequently Asked Questions (FAQ)

Q: Can MBR20100CT-E3/4W directly replace SR10100 in all applications?

A: MBR20100CT-E3/4W maintains the same 10 A current rating, 100 V reverse voltage, and TO-220-3 package as SR10100. The forward voltage is reduced to 800 mV @ 10 A compared to 850 mV @ 5 A in the original part. This represents improved performance characteristics. The part is ROHS3 compliant and active in production.

Q: What is the difference between SR10100HC0G and SR10100?

A: SR10100HC0G is the parametric equivalent of SR10100 with identical electrical specifications. The primary difference is product status: SR10100HC0G is active in production while SR10100 is discontinued at DiGi Electronics. SR10100HC0G includes automotive qualification (AEC-Q101) and is manufactured by Taiwan Semiconductor Corporation.

Q: Can I use a 5 A rated part instead of the 10 A SR10100?

A: Substitution with 5 A rated parts is only appropriate if the application circuit does not require the full 10 A capability per diode. The 5 A alternatives (SBR10100CT, MBR10100CT-E3/4W, MBR10100CT-G1, MBR10H100CT-E3/45) maintain the same 100 V reverse voltage, TO-220-3 package, and fast recovery characteristics. Circuit analysis is required to confirm current requirements do not exceed 5 A per diode.

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

A: This configuration contains two diodes with a shared cathode terminal. The three leads of the TO-220-3 package are: two anodes (one for each diode) and one common cathode. This configuration is mandatory for substitution compatibility.

Q: Are there differences in package variants between substitute parts?

A: Most substitute parts use standard TO-220-3 packaging. MBR10100CTP uses TO-220-3 Isolated Tab (ITO-220S), which provides electrical isolation between the tab and the cathode terminal. This variant is not directly interchangeable with standard TO-220-3 packages in all circuit configurations.

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

A: Forward voltage (Vf) determines the voltage drop across the diode during conduction. Lower forward voltage reduces power dissipation and heat generation. MBR20100CT-E3/4W and MBR20100CT-M3/4W offer 800 mV @ 10 A compared to SR10100's 850 mV @ 5 A, resulting in improved efficiency. However, circuit design must account for the specific forward voltage characteristics of the selected part.

Q: What is reverse leakage current and why does it matter?

A: Reverse leakage current (Ir) is the small current that flows through the diode when reverse biased. SR10100 specifies 100 µA @ 100 V. Lower reverse leakage (such as 3.5 µA in MBR10H100CT-E3/45) indicates better blocking characteristics and reduced power loss in reverse bias conditions. Higher reverse leakage (such as 150 µA in MBR20100CT-BP) may increase standby power consumption.

Q: Which substitute part offers the widest operating temperature range?

A: MBR10H100CT-E3/45 offers the widest operating temperature range at -65°C to 175°C, compared to SR10100's -55°C to 150°C. This extended range is beneficial for applications requiring operation in extreme temperature environments.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed maintain ROHS3 compliance, matching the original SR10100 specification. This ensures compatibility with RoHS-regulated applications and supply chains.

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