UCS2112T-1-V/G4 Equivalent & Substitute Parts

Part Overview

The UCS2112T-1-V/G4 is an active power switch IC manufactured by Microchip Technology, designed for USB power distribution and load switching applications. This device functions as a 1:1 power switch/driver with integrated current limiting and undervoltage lockout protection. The part is currently in active production status with 1,470 units available in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same product family, enabling procurement flexibility and supply chain continuity.

Substiute Parts

UCS2112T-1-V/G4

Microchip TechnologyIn Stock: 1556UCS2112T-1-V/G4 Datasheet

Current PartRFQ

UCS2112T-2-V/G4

Microchip TechnologyIn Stock: 6039UCS2112T-2-V/G4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The UCS2112T-2-V/G4 qualifies as a parametric equivalent to the UCS2112T-1-V/G4 based on the following criteria:

Electrical Equivalence: Both parts maintain identical specifications across all critical functional parameters: 1:1 switch ratio, 2-output configuration, high-side output topology, I2C/SMBus interface, 2.9V–5.5V load voltage range, 4.5V–5.5V supply voltage range, 3A maximum output current, 40mOhm typical on-resistance, and identical fault protection features (adjustable current limiting and UVLO).

Mechanical Compatibility: Both parts use the same 20-VFQFN exposed pad package with 4×4mm footprint, ensuring PCB layout and assembly compatibility without design modification.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting equivalent environmental and regulatory requirements.

Differentiation: The primary distinction between these parts is packaging format. The UCS2112T-1-V/G4 is supplied in Tape & Reel (TR) format, while the UCS2112T-2-V/G4 is supplied in Cut Tape (CT) format. Additionally, moisture sensitivity levels differ: MSL 1 (unlimited) for the main part versus MSL 3 (168 hours) for the substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the UCS2112T-1-V/G4 and UCS2112T-2-V/G4 are active production parts from Microchip Technology with full ROHS3 and REACH compliance. Selection between these parts should be based on procurement and handling requirements rather than electrical performance.

The UCS2112T-1-V/G4 (Tape & Reel format, MSL 1) is suitable for high-volume automated assembly operations where continuous reel feeding is standard and unlimited moisture exposure tolerance is required. The UCS2112T-2-V/G4 (Cut Tape format, MSL 3) is appropriate for lower-volume production runs, manual assembly processes, or applications where cut tape packaging reduces material waste. The MSL 3 rating of the substitute part requires adherence to 168-hour moisture exposure limits during storage and handling prior to reflow soldering.

Both parts are electrically and mechanically interchangeable within the same PCB design without modification to schematic, layout, or assembly procedures.

Frequently Asked Questions (FAQ)

Q: Can the UCS2112T-2-V/G4 be used as a direct replacement for the UCS2112T-1-V/G4 in production?

A: Yes. Both parts are electrically and mechanically identical. The only differences are packaging format (Tape & Reel versus Cut Tape) and moisture sensitivity level. No design changes are required.

Q: What is the significance of the MSL rating difference between these parts?

A: MSL 1 (unlimited) means the UCS2112T-1-V/G4 has no moisture exposure time restrictions. MSL 3 (168 hours) for the UCS2112T-2-V/G4 requires that the part be used within 168 hours of exposure to ambient conditions above 30°C and 60% relative humidity. Proper dry storage and handling procedures must be followed.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts have identical electrical specifications: 3A output current, 40mOhm on-resistance, 2.9V–5.5V load voltage range, 4.5V–5.5V supply voltage range, I2C/SMBus interface, and identical fault protection features.

Q: Which packaging format should be selected for my application?

A: Tape & Reel (TR) format is standard for high-volume automated pick-and-place assembly. Cut Tape (CT) format is used for lower-volume production, manual assembly, or when reel quantities exceed immediate requirements. Both formats use the same 20-VFQFN package footprint.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the UCS2112T-1-V/G4 and UCS2112T-2-V/G4 are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory standards.

Q: Can these parts be mixed within the same production batch?

A: Yes, provided that MSL 3 handling procedures are observed for the UCS2112T-2-V/G4. Both parts are functionally identical and will perform identically in the circuit.