MBRA210ET3 Equivalent & Substitute Parts

Part Overview

The MBRA210ET3 is a Schottky diode manufactured by onsemi, rated for 10 V DC reverse voltage and 2 A average rectified current in a surface mount SMA package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The obsolete status requires engineers to evaluate active alternative components that maintain functional compatibility within system specifications.

Substiute Parts

MBRA210ET3

onsemiIn Stock: 855MBRA210ET3 Datasheet

Current PartRFQ

SS22S-E3/61T

Vishay General Semiconductor - Diodes DivisionIn Stock: 30453SS22S-E3/61T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRA210ET3 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Technology: Schottky diode type
• Current Rating: 2 A average rectified current (minimum requirement)
• Voltage Rating: Reverse voltage must equal or exceed 10 V
• Forward Voltage: Maximum forward voltage drop at rated current
• Reverse Leakage: Maximum reverse leakage current at rated voltage
• Speed: Fast recovery characteristic ≤ 500 ns for switching applications

Mechanical Compatibility Criteria:

• Mounting Type: Surface mount configuration
• Package Type: DO-214 series packages (SMA, SMB, or equivalent)
• Temperature Range: Operating junction temperature range

The substitute part SS22S-E3/61T meets these criteria with a higher reverse voltage rating (20 V), matching current capacity (2 A), compatible Schottky technology, and surface mount packaging in the DO-214AA (SMB) form factor. The elevated voltage rating provides design margin for the 10 V application while maintaining electrical performance characteristics within acceptable parameters.

Parameter Comparison

Engineering Selection Recommendations

The SS22S-E3/61T serves as a functional substitute for the obsolete MBRA210ET3 based on the following engineering factors:

Product Status Consideration: The MBRA210ET3 is classified as obsolete, eliminating long-term procurement viability. The SS22S-E3/61T maintains active product status with established supply chain availability (30,400 pcs in stock versus 837 pcs for the original part).

Compliance and Certification: The SS22S-E3/61T achieves ROHS3 compliance, addressing regulatory requirements for new designs and manufacturing environments. Both components maintain MSL 1 (Unlimited) moisture sensitivity classification and REACH Unaffected status.

Electrical Performance: The substitute part provides equivalent current handling (2 A) and superior reverse voltage rating (20 V versus 10 V), establishing design margin for the 10 V application. Forward voltage characteristics remain comparable (550 mV versus 500 mV at 2 A). Fast recovery speed specifications are identical.

Mechanical Integration: Package transition from SMA (DO-214AC) to SMB (DO-214AA) requires PCB layout modification. Both packages are surface mount configurations with identical mounting methodology. The SMB package provides slightly larger footprint with improved thermal characteristics.

Temperature Range: The substitute part operates across -55°C to 150°C, compared to the original -65°C to 150°C. This represents a 10°C reduction in minimum operating temperature. Applications requiring operation below -55°C require alternative evaluation.

Frequently Asked Questions (FAQ)

Q: Can the SS22S-E3/61T directly replace the MBRA210ET3 without circuit modification?

A: Electrical substitution is valid. The SS22S-E3/61T maintains 2 A current capacity and Schottky technology with superior voltage rating. PCB layout modification is required due to package change from SMA to SMB. Thermal design may benefit from the larger SMB package footprint.

Q: What is the significance of the 20 V rating on the SS22S-E3/61T for a 10 V application?

A: The 20 V reverse voltage rating on the substitute part provides design margin and overvoltage protection for the 10 V application. This elevated rating does not degrade performance in 10 V circuits and enhances reliability under transient voltage conditions.

Q: How does the forward voltage difference (500 mV versus 550 mV) affect circuit performance?

A: The 50 mV increase in forward voltage drop at 2 A represents a 10% change. In rectification and switching applications, this results in marginally increased power dissipation. Thermal analysis should confirm acceptable junction temperature operation within the -55°C to 150°C range.

Q: Are there package compatibility considerations between SMA and SMB?

A: SMA (DO-214AC) and SMB (DO-214AA) are distinct surface mount packages with different footprints and lead configurations. PCB redesign is required for package transition. Both packages support identical mounting processes and solder reflow profiles.

Q: Does the ROHS3 compliance of the substitute part affect compatibility with existing assemblies?

A: ROHS3 compliance indicates lead-free construction and restricted hazardous substance compliance. This status is compatible with modern manufacturing processes. Existing RoHS non-compliant assemblies can incorporate ROHS3 compliant components without functional impact.

Q: What is the impact of the -55°C minimum operating temperature on the substitute part?

A: The SS22S-E3/61T operates from -55°C minimum, compared to -65°C for the original part. Applications requiring operation below -55°C require alternative component evaluation. Standard industrial and commercial temperature ranges (-40°C to 85°C) are fully supported.

Q: How does reverse leakage current affect substitution validity?

A: The substitute part specifies 200 µA reverse leakage at 20 V, compared to 50 µA at 10 V for the original part. Leakage current scales with voltage rating. At the 10 V operating point, the SS22S-E3/61T leakage remains within acceptable parameters for rectification and switching applications.