ER3BB-TP Equivalent & Substitute Parts

Part Overview

The ER3BB-TP is a fast recovery rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as Active product status and utilizes standard rectifier technology with a reverse recovery time of 35 ns. The ER3BB-TP is designed for general-purpose rectification applications requiring fast switching characteristics and compact surface mount packaging. Equivalent and substitute parts are identified based on matching or exceeding the electrical performance parameters and mechanical compatibility within the DO-214AA (SMB) package form factor.

Substiute Parts

ER3BB-TP

Micro Commercial CoIn Stock: 782ER3BB-TP Datasheet

Current PartRFQ

CMR1U-01 TR13 PBFREE

Central Semiconductor CorpIn Stock: 1388CMR1U-01 TR13 PBFREE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ER3BB-TP is determined by the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: The substitute part must maintain a DC reverse voltage rating (Vr) of 100 V or greater to ensure safe operation in the same circuit application.

Current Rating Compatibility: The substitute part must support an average rectified current (Io) rating of 3 A or greater. Parts with lower current ratings do not qualify as direct substitutes.

Package Compatibility: The substitute part must use the DO-214AA (SMB) surface mount package to ensure mechanical and thermal compatibility with existing PCB layouts and assembly processes.

Speed Classification: The substitute part must maintain fast recovery characteristics (reverse recovery time ≤ 500 ns for currents > 200 mA) to preserve switching performance in the application.

Temperature Range: The substitute part must support the operating junction temperature range of -55°C to 150°C or a wider range to ensure reliability across the intended application environment.

Based on these criteria, the CMR1U-01 TR13 PBFREE does not qualify as a direct substitute for the ER3BB-TP due to its reduced current rating of 1 A, which falls below the required 3 A specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The ER3BB-TP remains the specified component for applications requiring 3 A average rectified current at 100 V reverse voltage with fast recovery characteristics in a DO-214AA (SMB) package. This part is Active product status with 758 units in stock.

Substitute Part Limitations: The CMR1U-01 TR13 PBFREE is not suitable as a direct substitute for the ER3BB-TP due to its current rating of 1 A, which is insufficient for applications designed for 3 A operation. Substitution would result in component overstress and potential circuit failure.

Compliance Considerations: Both parts maintain REACH Unaffected status and EAR99 ECCN classification. The CMR1U-01 TR13 PBFREE carries RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, indicating superior environmental and handling characteristics compared to the ER3BB-TP.

Inventory Availability: The CMR1U-01 TR13 PBFREE is available with 1306 units in stock, providing alternative sourcing if the ER3BB-TP becomes unavailable. However, this part cannot be used as a functional replacement in 3 A applications.

Frequently Asked Questions (FAQ)

Q: Can the CMR1U-01 TR13 PBFREE replace the ER3BB-TP in my circuit?

A: No. The CMR1U-01 TR13 PBFREE is rated for 1 A average rectified current, while the ER3BB-TP is rated for 3 A. Using a lower-rated component in a 3 A application will cause the diode to exceed its maximum current specification, resulting in excessive heat generation, reduced reliability, and potential failure.

Q: Are both parts in the same package?

A: Yes. Both the ER3BB-TP and CMR1U-01 TR13 PBFREE use the DO-214AA (SMB) surface mount package, ensuring identical PCB footprint and assembly compatibility. Package compatibility alone does not qualify a part as a substitute if electrical ratings do not match the application requirements.

Q: What is the difference in reverse recovery time between these parts?

A: The ER3BB-TP has a reverse recovery time of 35 ns, while the CMR1U-01 TR13 PBFREE has a reverse recovery time of 50 ns. Both parts meet the fast recovery classification (≤ 500 ns for currents > 200 mA). The ER3BB-TP offers faster switching performance, which may be advantageous in high-frequency applications.

Q: Do both parts have the same voltage rating?

A: Yes. Both the ER3BB-TP and CMR1U-01 TR13 PBFREE are rated for 100 V maximum DC reverse voltage. Voltage rating compatibility is necessary but not sufficient for substitution; current rating must also match or exceed the application requirement.

Q: What is the operating temperature range for each part?

A: The ER3BB-TP operates from -55°C to 150°C junction temperature. The CMR1U-01 TR13 PBFREE operates from -65°C to 175°C, providing a wider temperature range. For applications within the ER3BB-TP range, both parts are suitable from a thermal perspective.

Q: Why would I consider the CMR1U-01 TR13 PBFREE if it cannot replace the ER3BB-TP?

A: The CMR1U-01 TR13 PBFREE is suitable for applications requiring 1 A or less at 100 V reverse voltage. It offers RoHS3 compliance and superior moisture sensitivity rating (MSL 1). If your application current requirement is 1 A or lower, this part provides an alternative source with enhanced environmental compliance.