MBRA210ET3G Equivalent & Substitute Parts

Part Overview

The MBRA210ET3G 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 alternatives for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across critical electrical parameters while accommodating available packaging options.

Substiute Parts

MBRA210ET3G

onsemiIn Stock: 18160MBRA210ET3G Datasheet

Current PartRFQ

SS22S-E3/61T

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

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRA210ET3G is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Current rating must equal or exceed 2 A average rectified current
• Voltage rating must equal or exceed 10 V DC reverse voltage
• Technology must be Schottky diode
• Speed classification must be Fast Recovery (≤ 500ns, > 200mA)

Mechanical Compatibility Criteria:

• Mounting type must be Surface Mount
• Package must be compatible with SMA or equivalent surface mount footprints

Compliance Requirements:

• RoHS3 compliance required
• MSL rating of 1 (Unlimited) preferred for manufacturing flexibility

The substitute part SS22S-E3/61T meets these criteria with a higher voltage rating (20 V) and equivalent current capacity (2 A), providing enhanced design margin while maintaining functional compatibility. The package transition from SMA to DO-214AA (SMB) requires PCB layout verification but does not affect electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The SS22S-E3/61T is a valid electrical substitute for the MBRA210ET3G based on equivalent current capacity, fast recovery speed classification, and Schottky technology. The higher voltage rating (20 V vs. 10 V) provides additional design margin without compromising performance in 10 V applications.

Compliance Status:

Both components maintain ROHS3 compliance and MSL 1 (Unlimited) ratings, ensuring compatibility with standard manufacturing processes and supply chain requirements. The substitute part is actively manufactured, eliminating obsolescence risk associated with the main part.

Package Transition Considerations:

The transition from SMA (DO-214AC) to SMB (DO-214AA) packaging requires PCB layout modification. The SMB package is physically larger than SMA, necessitating footprint redesign. This change does not affect electrical performance but requires design validation and manufacturing process updates.

Forward Voltage Variance:

The substitute part exhibits a 50 mV higher forward voltage drop (550 mV vs. 500 mV at 2 A). This variance is within normal Schottky diode manufacturing tolerances and does not preclude substitution in most applications. Circuit designs with tight power dissipation budgets require thermal analysis verification.

Temperature Range:

The main part operates from -65°C to 150°C, while the substitute operates from -55°C to 150°C. Applications requiring operation below -55°C junction temperature must retain the original MBRA210ET3G or identify alternative parts with extended low-temperature ratings.

Frequently Asked Questions (FAQ)

Q: Can the SS22S-E3/61T directly replace the MBRA210ET3G without circuit modification?

A: Electrical substitution is valid without circuit modification. The higher voltage rating and equivalent current capacity ensure functional compatibility. However, PCB layout modification is required due to package change from SMA to SMB.

Q: What is the primary reason for substituting the MBRA210ET3G?

A: The MBRA210ET3G is classified as obsolete. The SS22S-E3/61T is an active product with ongoing manufacturing support, ensuring long-term availability and supply chain stability.

Q: Does the 50 mV forward voltage difference affect circuit performance?

A: The 50 mV variance (500 mV to 550 mV at 2 A) is within normal Schottky diode manufacturing tolerances. Applications with critical power dissipation requirements should perform thermal analysis to confirm acceptable performance.

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

A: Yes. SMA (DO-214AC) and SMB (DO-214AA) are different package sizes. PCB footprint redesign is required. The SMB package is larger and may not fit existing SMA footprints without layout modification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the MBRA210ET3G and SS22S-E3/61T are ROHS3 compliant with MSL 1 (Unlimited) ratings, ensuring compatibility with standard manufacturing and supply chain processes.

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

A: The substitute part operates from -55°C to 150°C, compared to the main part's -65°C to 150°C range. Applications requiring operation below -55°C junction temperature cannot use the SS22S-E3/61T and require alternative parts with extended low-temperature specifications.

Q: Is the reverse leakage current difference significant?

A: The substitute part exhibits 200 µA leakage at 20 V compared to 50 µA at 10 V for the main part. These measurements are taken at different voltages, making direct comparison imprecise. At equivalent voltage conditions, leakage characteristics are comparable for Schottky diodes of this class.

Q: What packaging format is the SS22S-E3/61T supplied in?

A: The SS22S-E3/61T is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly operations.