S-1122B48MC-L9HTFU Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The S-1122B48MC-L9HTFU is an active linear voltage regulator IC manufactured by ABLIC Inc., designed for positive fixed output applications. This Surface Mount device delivers 150mA output current at a fixed 4.8V output voltage with a maximum dropout voltage of 0.26V at 100mA. The part is ROHS3 compliant and currently in active production status with 904 units available in stock. Substitute parts are identified when electrical performance parameters, output specifications, and package compatibility remain equivalent across the product line.

Substiute Parts

S-1122B48MC-L9HTFU

ABLIC Inc.In Stock: 979S-1122B48MC-L9HTFU Datasheet

Current PartRFQ

S-T111B48MC-OHHTFU

ABLIC Inc.In Stock: 1341S-T111B48MC-OHHTFU Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S-1122B48MC-L9HTFU are identified based on the following critical parameters that must remain equivalent:

• Output voltage specification: 4.8V fixed
• Output current capability: 150mA
• Maximum input voltage: 6.5V
• Dropout voltage performance: 0.26V @ 100mA
• Package type: SOT-23-5 (SC-74A, SOT-753)
• Surface Mount configuration
• Operating temperature range: -40°C ~ 85°C
• Control features: Enable function
• Protection features: Over Current protection
• Compliance: ROHS3 Compliant

The S-T111B48MC-OHHTFU meets all electrical and mechanical equivalency criteria. The primary difference is packaging format (Cut Tape versus Tape & Reel) and series designation (S-T111 versus S-1122), which do not affect functional performance or circuit compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the S-1122B48MC-L9HTFU and S-T111B48MC-OHHTFU are active production devices from ABLIC Inc. with identical electrical specifications and package configurations. Selection between these parts is determined by procurement requirements:

The S-1122B48MC-L9HTFU is supplied in Tape & Reel format, suitable for high-volume automated assembly operations. The S-T111B48MC-OHHTFU is supplied in Cut Tape format, appropriate for lower-volume applications or manual assembly processes. Both parts maintain ROHS3 compliance and equivalent performance across all specified electrical parameters. Inventory availability should be considered based on project timeline and volume requirements.

Frequently Asked Questions (FAQ)

Q: Can S-T111B48MC-OHHTFU replace S-1122B48MC-L9HTFU in existing designs?

A: Yes. Both parts are electrically equivalent with identical output voltage (4.8V), output current (150mA), dropout voltage (0.26V @ 100mA), and package type (SOT-23-5). The only difference is the packaging format (Cut Tape versus Tape & Reel), which does not affect circuit performance or PCB compatibility.

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

A: Tape & Reel packaging is used for automated high-volume assembly with pick-and-place equipment. Cut Tape packaging is supplied as individual segments cut from the reel, suitable for lower volumes or manual assembly. Both formats contain the same component in the same SOT-23-5 package.

Q: Are both parts RoHS compliant?

A: Yes. Both S-1122B48MC-L9HTFU and S-T111B48MC-OHHTFU are ROHS3 compliant and REACH unaffected.

Q: What are the key parameters that determine substitutability?

A: Output voltage (4.8V fixed), output current (150mA), maximum input voltage (6.5V), dropout voltage (0.26V @ 100mA), package type (SOT-23-5), and operating temperature range (-40°C ~ 85°C) must remain equivalent. Both substitute parts maintain these specifications.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use the same SOT-23-5 package footprint and have identical pin configurations, enabling direct PCB compatibility without layout modifications.