MBR1020-BP Equivalent & Substitute Parts

Part Overview

The MBR1020-BP is a Schottky diode rated for 20 V DC reverse voltage and 10 A average rectified current in a through-hole TO-220AC package. Manufactured by Micro Commercial Co, this component is classified as Not For New Designs, indicating it has reached end-of-life status. Finding equivalent or substitute parts is necessary for applications requiring continued supply, design updates, or component availability in current production environments.

Substiute Parts

MBR1020-BP

Micro Commercial CoIn Stock: 1164MBR1020-BP Datasheet

Current PartRFQ

SRA820HC0G

Taiwan Semiconductor CorporationIn Stock: 854SRA820HC0G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR1020-BP is evaluated based on the following critical parameters:

Voltage Rating Compatibility: The substitute part must maintain the same maximum DC reverse voltage of 20 V to ensure circuit protection and reliability.

Current Rating: The substitute part current rating must equal or exceed the 10 A average rectified current requirement of the original design.

Package Compatibility: The substitute must use the same TO-220-2 through-hole package to ensure mechanical and thermal compatibility with existing PCB layouts and heat sinking arrangements.

Technology Type: Schottky diode technology must be preserved to maintain the fast switching characteristics and low forward voltage drop inherent to the original design.

Operating Temperature Range: The substitute must support the required junction temperature range to function within specified thermal limits.

The SRA820HC0G from Taiwan Semiconductor Corporation meets the voltage rating (20 V) and package requirements (TO-220AC) but has a reduced current rating of 8 A, which is below the 10 A specification of the MBR1020-BP. This substitution is therefore limited to applications where the actual operating current does not exceed 8 A.

Parameter Comparison

Engineering Selection Recommendations

The SRA820HC0G is an active product with current manufacturing support and compliance certifications including AEC-Q101 automotive qualification and ROHS3 compliance. These attributes make it suitable for new designs and applications requiring regulatory compliance.

However, the SRA820HC0G has a maximum current rating of 8 A, which is 2 A below the MBR1020-BP specification. This substitution is valid only for applications where the actual operating current remains at or below 8 A. The reverse leakage current of the SRA820HC0G (500 µA @ 20 V) is higher than the MBR1020-BP (100 µA @ 20 V), which may impact power dissipation in low-current standby conditions.

The operating temperature range of the SRA820HC0G extends to 125°C maximum junction temperature, compared to 150°C for the MBR1020-BP. Applications requiring operation above 125°C junction temperature cannot use this substitute.

For applications requiring the full 10 A current rating and 150°C junction temperature capability of the MBR1020-BP, alternative Schottky diodes with matching specifications must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the SRA820HC0G directly replace the MBR1020-BP in all applications?

A: No. The SRA820HC0G has a maximum current rating of 8 A, while the MBR1020-BP is rated for 10 A. Substitution is valid only when actual operating current does not exceed 8 A. Applications requiring the full 10 A rating require alternative parts.

Q: Are the TO-220AC and TO-220-2 packages identical?

A: Yes. TO-220AC is the supplier device package designation for the TO-220-2 case outline. Both designations refer to the same physical package with identical pin configuration and thermal characteristics.

Q: What is the impact of the higher reverse leakage current in the SRA820HC0G?

A: The SRA820HC0G exhibits 500 µA reverse leakage at 20 V, compared to 100 µA for the MBR1020-BP. This increases power dissipation during reverse bias conditions. For applications with extended standby periods or strict power budget requirements, this difference must be evaluated.

Q: Does the lower maximum junction temperature of the SRA820HC0G affect substitution?

A: Yes. The SRA820HC0G is rated to 125°C maximum junction temperature, while the MBR1020-BP reaches 150°C. Applications requiring operation above 125°C junction temperature cannot use the SRA820HC0G as a substitute.

Q: What compliance advantages does the SRA820HC0G offer?

A: The SRA820HC0G is AEC-Q101 qualified for automotive applications and ROHS3 compliant. The MBR1020-BP has no specified automotive qualification or RoHS compliance. For regulated industries or new design requirements, the SRA820HC0G provides superior compliance documentation.

Q: Is the SRA820HC0G suitable for new designs?

A: Yes. The SRA820HC0G has Active product status with current manufacturing support. The MBR1020-BP is classified as Not For New Designs, making the SRA820HC0G the preferred choice for new development when current requirements do not exceed 8 A.