UCD7242MRSJREP Equivalent & Substitute Parts

Part Overview

The UCD7242MRSJREP is a buck switching regulator IC from Texas Instruments designed for power management applications. This device delivers 10A output current with dual positive outputs and operates across an input voltage range of 4.75V to 18V. The part is actively produced and fully compliant with RoHS3 and REACH regulations. Substitute parts are identified to provide alternative packaging and procurement options while maintaining identical electrical and mechanical specifications.

Substiute Parts

UCD7242MRSJREP

Texas InstrumentsIn Stock: 3129UCD7242MRSJREP Datasheet

Current PartRFQ

UCD7242RSJR

Texas InstrumentsIn Stock: 25207UCD7242RSJR Datasheet

DirectRFQ

UCD7242RSJT

Texas InstrumentsIn Stock: 2050UCD7242RSJT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UCD7242MRSJREP are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical electrical specifications including 10A output current, 4.75V to 18V input voltage range, 300kHz to 2MHz switching frequency, dual positive outputs, and synchronous rectification capability.

Mechanical Compatibility: All parts use the same 32-PowerVFQFN package (32-VQFN-HR 6x6) with surface mount mounting type, ensuring PCB layout compatibility.

Regulatory Compliance: All parts carry RoHS3 and REACH compliance certifications with MSL Level 1 rating.

Packaging Variation: The primary difference between the main part and substitutes is the supply packaging format: the UCD7242MRSJREP is supplied in Tape & Reel (TR) format, while UCD7242RSJR and UCD7242RSJT are supplied in Cut Tape (CT) & Digi-Reel® format.

Operating Temperature Range: The main part operates from -55°C to 125°C (TJ), while substitute parts operate from -40°C to 125°C (TJ). This represents a narrower lower temperature specification for substitutes.

Parameter Comparison

Engineering Selection Recommendations

UCD7242RSJR and UCD7242RSJT are direct functional equivalents to the UCD7242MRSJREP. All three parts are active products from Texas Instruments with identical electrical performance and mechanical compatibility.

Selection between these parts should be based on:

1. Packaging Format Requirements: Choose UCD7242MRSJREP for Tape & Reel supply format. Choose UCD7242RSJR or UCD7242RSJT for Cut Tape & Digi-Reel® supply format.

2. Temperature Range Requirements: If your application requires operation below -40°C, the UCD7242MRSJREP with its -55°C minimum operating temperature is the appropriate choice. For applications operating at -40°C and above, all three parts are suitable.

3. Regulatory Compliance: All parts meet RoHS3 and REACH requirements with MSL Level 1 rating, suitable for unlimited shelf life storage.

4. Inventory Availability: UCD7242RSJR has 25,100 units in stock, UCD7242RSJT has 1,997 units in stock, and UCD7242MRSJREP has 3,085 units in stock.

Frequently Asked Questions (FAQ)

Q: Can UCD7242RSJR or UCD7242RSJT be used as direct replacements for UCD7242MRSJREP?

A: Yes, with one consideration. The electrical and mechanical specifications are identical. The primary difference is the operating temperature range: UCD7242MRSJREP operates from -55°C to 125°C, while UCD7242RSJR and UCD7242RSJT operate from -40°C to 125°C. If your application does not require operation below -40°C, these parts are fully interchangeable.

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

A: Tape & Reel (TR) packaging supplies components on continuous tape in reel format, suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® packaging supplies components on tape segments or alternative reel formats, suitable for lower-volume or mixed-component assembly operations. The electrical and mechanical specifications of the component itself are identical.

Q: Are all three parts RoHS3 compliant?

A: Yes. UCD7242MRSJREP, UCD7242RSJR, and UCD7242RSJT are all ROHS3 Compliant with MSL Level 1 rating and REACH Affected status.

Q: What is the significance of the MSL Level 1 rating?

A: MSL (Moisture Sensitivity Level) Level 1 indicates unlimited shelf life. These components do not require special moisture control during storage or handling, making them suitable for standard warehouse and logistics environments.

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

A: Yes. All three parts use the identical 32-PowerVFQFN package (32-VQFN-HR 6x6) with surface mount mounting type. PCB layout, footprint, and assembly processes are identical across all three parts.