S-T111B40MC-OGZTFG Equivalent & Substitute Parts

Part Overview

The S-T111B40MC-OGZTFG is a linear voltage regulator IC from ABLIC Inc. designed for positive fixed 4V output at 150mA in SOT-23-5 surface mount packaging. This part is classified as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and maintenance applications. The device provides regulated power management with integrated over-current protection and enable control features suitable for low-power applications requiring stable 4V output.

Substiute Parts

S-T111B40MC-OGZTFG

ABLIC Inc.In Stock: 871S-T111B40MC-OGZTFG Datasheet

Current PartRFQ

S-1112B40MC-L6ZTFU

ABLIC Inc.In Stock: 1000S-1112B40MC-L6ZTFU Datasheet

Parametric EquivalentRFQ

S-1122B40MC-L8ZTFU

ABLIC Inc.In Stock: 1180S-1122B40MC-L8ZTFU Datasheet

Parametric EquivalentRFQ

S-1167B40-M5T1U

ABLIC Inc.In Stock: 3549S-1167B40-M5T1U Datasheet

Parametric EquivalentRFQ

S-T111B40MC-OGZTFU

ABLIC Inc.In Stock: 921S-T111B40MC-OGZTFU Datasheet

Parametric EquivalentRFQ

XC6504A401MR-G

Torex Semiconductor LtdIn Stock: 1049XC6504A401MR-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: fixed 4V output voltage, 150mA output current capability, SOT-23-5 package compatibility, -40°C to 85°C operating temperature range, enable control feature, and over-current protection. Parts meeting these core electrical and mechanical specifications are functionally equivalent for direct replacement.

The substitute parts are grouped into two categories:

ABLIC Inc. Series (Direct Equivalents): S-1112B40MC-L6ZTFU, S-1122B40MC-L8ZTFU, S-1167B40-M5T1U, and S-T111B40MC-OGZTFU maintain identical output specifications and packaging. These parts differ primarily in product status (Active vs. Not For New Designs), packaging format (Tape & Reel vs. Cut Tape), and minor performance variations in quiescent current and dropout voltage.

Cross-Manufacturer Alternative: XC6504A401MR-G from Torex Semiconductor Ltd provides equivalent 4V/150mA output in SOT-25 packaging with matching enable control and over-current protection, though with slightly different electrical characteristics in dropout voltage and quiescent current specifications.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring direct pin-compatible replacement with identical electrical performance, S-1112B40MC-L6ZTFU or S-T111B40MC-OGZTFU are preferred selections. Both maintain Active product status from ABLIC Inc., ensuring long-term availability and supply chain stability. S-1112B40MC-L6ZTFU is available in Tape & Reel packaging matching the original part format, while S-T111B40MC-OGZTFU is supplied in Cut Tape format.

S-1122B40MC-L8ZTFU and S-1167B40-M5T1U provide Active alternatives with improved power efficiency characteristics. S-1167B40-M5T1U demonstrates reduced quiescent current (900 nA vs. 1 µA) and lower supply current (16 µA vs. 90 µA), beneficial for battery-powered or low-power standby applications, though with slightly reduced PSRR performance.

XC6504A401MR-G from Torex Semiconductor Ltd serves as a cross-manufacturer alternative with equivalent output specifications. This part requires PCB layout adjustment due to SOT-25 packaging versus SOT-23-5, and exhibits higher dropout voltage (0.51V vs. 0.26V), making it suitable only where board redesign is feasible and higher dropout voltage is acceptable.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH Unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can S-1167B40-M5T1U replace S-T111B40MC-OGZTFG in existing designs without modification?

A: Yes. S-1167B40-M5T1U maintains identical output voltage (4V), output current (150mA), operating temperature range (-40°C to 85°C), and SOT-23-5 packaging. Pin configuration and control features (Enable, Over Current protection) are compatible. The part offers improved power efficiency with lower quiescent current and supply current, making it a direct functional replacement.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging supplies components on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape provides the same components pre-cut into individual strips for manual handling or lower-volume applications. Electrical and mechanical specifications remain identical; the difference is assembly process compatibility.

Q: Why does XC6504A401MR-G have higher dropout voltage?

A: XC6504A401MR-G is manufactured by Torex Semiconductor Ltd using different internal circuit design. The 0.51V dropout voltage at 150mA (versus 0.26V for ABLIC parts) reflects different silicon process and topology. This part is suitable only where the higher dropout voltage does not compromise system performance or where input voltage headroom is sufficient.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory requirements of the original S-T111B40MC-OGZTFG.

Q: Which substitute part has the best power efficiency?

A: S-1167B40-M5T1U provides the lowest quiescent current (900 nA) and supply current (16 µA), making it the most power-efficient option for applications where standby current consumption is critical.

Q: Can I use XC6504A401MR-G as a direct drop-in replacement?

A: No. XC6504A401MR-G uses SOT-25 packaging instead of SOT-23-5, requiring PCB layout modification. Pin assignments differ between package types. This part is suitable only for new designs or redesigned boards where the different package footprint can be accommodated.