SBX201C-TB-E Equivalent & Substitute Parts

Part Overview

The SBX201C-TB-E is a Schottky diode array manufactured by onsemi, configured as a 1 Pair Series Connection with a peak reverse voltage rating of 2V and maximum current of 50 mA. This component is packaged in a TO-236-3 (SC-59, SOT-23-3) configuration and supplied on Cut Tape with Digi-Reel packaging.

The SBX201C-TB-E has reached obsolete product status. Locating equivalent or substitute components is necessary to support ongoing production requirements, maintenance operations, and design continuity for applications currently utilizing this diode array.

Substiute Parts

SBX201C-TB-E

onsemiIn Stock: 2125SBX201C-TB-E Datasheet

Current PartRFQ

NSR201MXT5G

onsemiIn Stock: 5171NSR201MXT5G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SBX201C-TB-E is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute must maintain a peak reverse voltage of 2V to ensure circuit protection and performance equivalence.

Current Rating: The substitute must support a maximum current of 50 mA to handle the intended load without exceeding thermal or electrical limits.

Diode Configuration: The SBX201C-TB-E uses a 1 Pair Series Connection configuration. Substitutes with different internal configurations (such as single diodes) may be used when circuit topology permits functional equivalence.

Package Compatibility: The original part uses a TO-236-3 (SOT-23-3) package. Substitutes in alternative packages (such as 2-XDFN) are acceptable when board layout and assembly processes support the different form factor.

Compliance Standards: Both the original and substitute parts must maintain ROHS3 compliance and MSL Level 1 rating to ensure regulatory and environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

The NSR201MXT5G is the manufacturer-recommended substitute for the SBX201C-TB-E. Both components are manufactured by onsemi and maintain identical electrical ratings for voltage (2V peak reverse) and current (50 mA maximum).

The NSR201MXT5G is in active product status, ensuring long-term availability and supply chain continuity compared to the obsolete SBX201C-TB-E.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying regulatory and environmental requirements without modification.

The NSR201MXT5G provides an extended operating temperature range (-55°C to 150°C) compared to the SBX201C-TB-E (150°C maximum), offering improved thermal performance in low-temperature applications.

Package transition from TO-236-3 (SOT-23-3) to 2-XDFN requires board layout and assembly process evaluation to confirm mechanical and thermal compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can the NSR201MXT5G directly replace the SBX201C-TB-E without circuit modification?

A: Electrical substitution is valid based on matching voltage (2V) and current (50 mA) ratings. However, the package change from TO-236-3 to 2-XDFN requires board layout verification. The internal configuration differs (1 Pair Series Connection versus Single diode), which may affect circuit behavior depending on application topology.

Q: What are the key differences between these two parts?

A: The primary differences are product status (Obsolete versus Active), package type (TO-236-3 versus 2-XDFN), operating temperature range (-55°C to 150°C versus 150°C maximum), and internal diode configuration (Series Pair versus Single). Electrical ratings for voltage and current are identical.

Q: Is the NSR201MXT5G suitable for all applications using the SBX201C-TB-E?

A: Suitability depends on circuit topology and board design constraints. The matching voltage and current ratings ensure electrical compatibility. Package compatibility must be confirmed through board layout review and assembly process validation.

Q: What compliance certifications apply to the NSR201MXT5G?

A: The NSR201MXT5G maintains ROHS3 compliance, REACH Unaffected status, and MSL Level 1 rating, matching the compliance profile of the SBX201C-TB-E.

Q: Why does the NSR201MXT5G have a lower capacitance rating?

A: The NSR201MXT5G capacitance is 0.2pF compared to 0.28pF for the SBX201C-TB-E, both measured at 0V and 1MHz. This difference reflects the different internal configurations and does not affect substitution validity for applications where these electrical parameters are within acceptable tolerances.