MBR20100CTP Equivalent & Substitute Parts

Part Overview

The MBR20100CTP is a Schottky diode array manufactured by Diodes Incorporated, configured as 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 Isolated Tab (ITO220S) for through-hole mounting applications. This part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair 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 @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type	Through Hole
Package / Case	TO-220-3 Isolated Tab
Operating Temperature - Junction	-65°C ~ 175°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MBR20100CTP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io) (per Diode): 10 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Through Hole
RoHS Status: ROHS3 Compliant

Package Compatibility Considerations: Substitute parts are grouped into two package categories: TO-220-3 Isolated Tab (ITO220S, ITO-220AB) and TO-220-3 Full Pack (TO-220FP). Both package types are through-hole mounted and electrically equivalent for the specified diode array configuration. Forward voltage (Vf) and reverse leakage current (Ir) variations within the specified ranges do not preclude substitution, as these parameters remain within acceptable operating margins for the 100 V, 10 A application class.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Ir @ Vr	Package / Case	Product Status	Operating Temp (Junction)
MBR20100CTP	Diodes Incorporated	100 V	10 A	850 mV @ 10 A	100 µA @ 100 V	TO-220-3 Isolated Tab	Obsolete	-65°C ~ 175°C
MBR20100CT-G1	Diodes Incorporated	100 V	10 A	840 mV @ 10 A	50 µA @ 100 V	TO-220-3	Active	-55°C ~ 175°C
MBR20100CT-E3/4W	Vishay General Semiconductor - Diodes Division	100 V	10 A	800 mV @ 10 A	100 µA @ 100 V	TO-220-3	Active	-65°C ~ 150°C
MBRF20H100CT-E3/45	Vishay General Semiconductor - Diodes Division	100 V	10 A	770 mV @ 10 A	4.5 µA @ 100 V	TO-220-3 Full Pack, Isolated Tab	Active	-65°C ~ 175°C
MBRF20100CTG	onsemi	100 V	10 A	850 mV @ 10 A	150 µA @ 100 V	TO-220-3 Full Pack	Active	-65°C ~ 175°C
MBRF20100CTP	SMC Diode Solutions	100 V	Not Specified	900 mV @ 10 A	1 mA @ 100 V	TO-220-3 Full Pack, Isolated Tab	Active	-55°C ~ 150°C
MBRF30100CTP	SMC Diode Solutions	100 V	Not Specified	850 mV @ 15 A	1 mA @ 100 V	TO-220-3 Full Pack, Isolated Tab	Active	-55°C ~ 150°C
STPS20H100CFP	STMicroelectronics	100 V	10 A	770 mV @ 10 A	4.5 µA @ 100 V	TO-220-3 Full Pack	Active	175°C (Max)
STPS20S100CFP	STMicroelectronics	100 V	10 A	850 mV @ 10 A	3.5 µA @ 100 V	TO-220-3 Full Pack	Active	175°C (Max)

Engineering Selection Recommendations

Primary Recommendation - Diodes Incorporated MBR20100CT-G1: This part is manufactured by the original equipment supplier and maintains active product status. It is AEC-Q101 qualified for automotive applications and carries ROHS3 compliance with REACH Unaffected status. The forward voltage specification (840 mV @ 10 A) is marginally lower than the original part, and reverse leakage current (50 µA @ 100 V) is reduced, indicating improved device characteristics. Operating temperature range (-55°C ~ 175°C) covers the original specification with the exception of the lower temperature limit.

Secondary Recommendation - Vishay MBR20100CT-E3/4W: This TMBS® series component from Vishay General Semiconductor maintains the original forward voltage specification (800 mV @ 10 A) and reverse leakage current (100 µA @ 100 V). ROHS3 compliance and REACH Unaffected status are confirmed. The maximum junction temperature is limited to 150°C compared to the original 175°C specification.

Tertiary Recommendation - STMicroelectronics STPS20H100CFP and STPS20S100CFP: Both STMicroelectronics parts are available in high-volume inventory and maintain 100 V, 10 A electrical specifications. The STPS20H100CFP exhibits superior reverse leakage characteristics (4.5 µA @ 100 V) and lower forward voltage (770 mV @ 10 A). Both parts are packaged in TO-220-3 Full Pack configuration and carry ROHS3 compliance with REACH Unaffected status.

Alternative Consideration - Vishay MBRF20H100CT-E3/45: This part provides the lowest forward voltage (770 mV @ 10 A) and lowest reverse leakage current (4.5 µA @ 100 V) among all substitutes, with full operating temperature range (-65°C ~ 175°C) matching the original specification. Packaging includes isolated tab configuration (ITO-220AB) compatible with the original mechanical footprint.

Frequently Asked Questions (FAQ)

Q: Can MBR20100CT-G1 directly replace MBR20100CTP in existing designs?

A: Yes. Both parts maintain identical electrical specifications for diode configuration (1 pair common cathode), reverse voltage (100 V), and average rectified current (10 A). The MBR20100CT-G1 is packaged in standard TO-220-3 configuration, which is mechanically compatible with the original ITO220S isolated tab package for through-hole mounting. The lower forward voltage and reverse leakage current represent improved performance characteristics.

Q: What is the difference between TO-220-3 Isolated Tab and TO-220-3 Full Pack packages?

A: Both are through-hole mounted TO-220-3 packages. The Isolated Tab variant (ITO220S, ITO-220AB) provides electrical isolation between the mounting tab and the circuit, requiring an insulating washer for mounting. The Full Pack variant (TO-220FP) integrates the tab into the package body without isolation. Selection depends on the application's thermal management and electrical isolation requirements. Both are electrically equivalent for the diode array function.

Q: Are there temperature range limitations when substituting with MBR20100CT-E3/4W?

A: The MBR20100CT-E3/4W specifies a maximum junction temperature of 150°C, compared to the original MBR20100CTP specification of 175°C. This represents a 25°C reduction in the upper operating limit. Applications requiring sustained operation above 150°C junction temperature should select alternative substitutes such as MBR20100CT-G1, MBRF20H100CT-E3/45, or STMicroelectronics parts, which maintain the 175°C maximum rating.

Q: What is the significance of reverse leakage current variations among substitute parts?

A: Reverse leakage current (Ir) specifications range from 3.5 µA to 150 µA across the substitute parts. Lower reverse leakage current indicates reduced parasitic current flow in reverse bias conditions, which improves efficiency and reduces power dissipation in standby or blocking states. All specified values remain within acceptable operating margins for 100 V Schottky diode applications. Selection based on leakage current should consider the specific application's power budget and thermal constraints.

Q: Why do some substitute parts show "Not Specified" for average rectified current?

A: The SMC Diode Solutions parts (MBRF20100CTP and MBRF30100CTP) do not provide explicit average rectified current specifications in the available data. However, these parts are listed as direct substitutes in the original MBR20100CTP documentation and maintain the 100 V reverse voltage rating and Schottky technology classification. The MBRF30100CTP variant is rated for 15 A at 850 mV forward voltage, indicating higher current capability than the 10 A base specification.

Q: Is RoHS3 compliance maintained across all substitute parts?

A: Yes. All substitute parts listed carry ROHS3 Compliant status. The original MBR20100CTP and all active substitute components meet RoHS3 requirements. REACH status varies: Diodes Incorporated MBR20100CT-G1, Vishay parts, STMicroelectronics parts, and onsemi MBRF20100CTG are REACH Unaffected. SMC Diode Solutions parts (MBRF20100CTP and MBRF30100CTP) are REACH Affected. Selection for applications with REACH-restricted supply chains should prioritize REACH Unaffected alternatives.

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