S-1133B50-U5T1G Equivalent & Substitute Parts

Part Overview

The S-1133B50-U5T1G is a linear voltage regulator IC from ABLIC Inc. designed for positive fixed 5V output at 300mA in a SOT-89-5 surface mount package. This part is classified as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and maintenance applications. The S-1133 series provides regulated power management with integrated protection features suitable for low-power embedded systems and industrial applications.

Substiute Parts

S-1133B50-U5T1G

ABLIC Inc.In Stock: 27186S-1133B50-U5T1G Datasheet

Current PartRFQ

S-1133B50-U5T1U

ABLIC Inc.In Stock: 6507S-1133B50-U5T1U Datasheet

Parametric EquivalentRFQ

S-1133B50-U5T2U

ABLIC Inc.In Stock: 745S-1133B50-U5T2U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the S-1133B50-U5T1G is determined by strict equivalence across the following critical parameters:

• Output voltage configuration: Positive fixed 5V
• Output current capability: 300mA
• Maximum input voltage: 10V
• Voltage dropout specification: 0.15V @ 100mA
• Package type: SOT-89-5 surface mount
• Control features: Enable function
• Protection features: Over Current and Thermal Shutdown
• Compliance standards: ROHS3, REACH Unaffected

The identified substitute parts maintain identical electrical and mechanical specifications while offering active product status, enabling continued design support and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

Both S-1133B50-U5T1U and S-1133B50-U5T2U are parametric equivalents suitable for direct replacement of the S-1133B50-U5T1G. The primary distinction is product lifecycle status:

S-1133B50-U5T1U and S-1133B50-U5T2U carry Active product status, providing ongoing manufacturer support, continued availability, and design qualification pathways. These parts are recommended for applications requiring long-term supply assurance and technical support.

All three parts maintain identical electrical performance, thermal characteristics, and compliance certifications (ROHS3, REACH Unaffected). Selection between S-1133B50-U5T1U and S-1133B50-U5T2U should be based on inventory availability and supply chain logistics, as both deliver equivalent functionality and reliability.

Frequently Asked Questions (FAQ)

Q: Can S-1133B50-U5T1U or S-1133B50-U5T2U be used as direct replacements for S-1133B50-U5T1G?

A: Yes. Both parts are parametric equivalents with identical output voltage (5V), output current (300mA), input voltage rating (10V), dropout voltage (0.15V @ 100mA), package type (SOT-89-5), and protection features. Direct PCB substitution is supported without circuit modification.

Q: What is the significance of the "Not For New Designs" status on the S-1133B50-U5T1G?

A: This designation indicates the manufacturer is not recommending this part for new product development. Active alternatives (S-1133B50-U5T1U and S-1133B50-U5T2U) should be prioritized for new designs to ensure long-term support and supply continuity.

Q: Are there any differences in thermal or electrical performance between these three parts?

A: No. All three parts share identical specifications for quiescent current (1 µA), PSRR (60dB at 1kHz), operating temperature range (-40°C to 85°C), and protection features (Over Current, Thermal Shutdown).

Q: What is the difference between S-1133B50-U5T1U and S-1133B50-U5T2U?

A: Both parts are electrically and mechanically identical. The difference lies in inventory availability and supply chain sourcing. Selection should be based on procurement lead times and stock levels.

Q: Is the SOT-89-5 package compatible with existing PCB layouts designed for S-1133B50-U5T1G?

A: Yes. All three parts use the SOT-89-5 surface mount package with identical pinout and footprint, ensuring direct compatibility with existing PCB designs without layout modifications.

Q: Are these parts compliant with environmental and regulatory standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial and commercial applications.