SC1202CST3.3TRT Equivalent & Substitute Parts

Part Overview

The SC1202CST3.3TRT is a linear voltage regulator IC manufactured by Semtech Corporation, designed to deliver a fixed 3.3V output at 600mA in a surface-mount SOT-223-3 package. This device functions as a positive fixed output regulator with integrated over-current and over-temperature protection. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

SC1202CST3.3TRT

Semtech CorporationIn Stock: 761SC1202CST3.3TRT Datasheet

Current PartRFQ

AP7365-33EG-13

Diodes IncorporatedIn Stock: 98623AP7365-33EG-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC1202CST3.3TRT is determined by the following critical parameters:

• Fixed output voltage of 3.3V
• Output current capability of 600mA minimum
• SOT-223-3 package compatibility (mechanical and electrical pin configuration)
• Surface-mount technology
• Positive fixed output configuration
• Over-current and over-temperature protection

The AP7365-33EG-13 from Diodes Incorporated meets all substitution criteria. Both devices share identical output voltage, current rating, package type, and protection features. The substitute maintains full functional and mechanical compatibility while offering active product status and extended temperature operating range.

Parameter Comparison

Engineering Selection Recommendations

The AP7365-33EG-13 is the direct functional equivalent for the obsolete SC1202CST3.3TRT. Selection of this substitute is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• ROHS3 compliance meeting current environmental and regulatory standards
• Identical electrical performance in output voltage and current delivery
• Pin-compatible SOT-223-3 package enabling direct board-level replacement
• Equivalent protection architecture (over-current and over-temperature)
• Lower maximum input voltage specification (6V vs 7V) remains suitable for standard 5V supply applications with appropriate margin

The substitute demonstrates superior REACH compliance status and maintains unlimited moisture sensitivity rating, supporting manufacturing and storage requirements equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can the AP7365-33EG-13 be used as a direct replacement for the SC1202CST3.3TRT?

A: Yes. Both devices are pin-compatible in SOT-223-3 packaging and deliver identical 3.3V at 600mA output. No circuit modifications are required for direct substitution.

Q: What is the difference in maximum input voltage between these parts?

A: The SC1202CST3.3TRT accepts up to 7V input, while the AP7365-33EG-13 accepts up to 6V. For applications using standard 5V supplies, this difference does not impact functionality. Applications requiring input voltages between 6V and 7V must retain the original part or redesign the input supply.

Q: Why does the substitute have a lower operating temperature maximum?

A: The AP7365-33EG-13 operates from -40°C to 85°C, compared to the original 0°C to 125°C range. For applications requiring operation above 85°C, the original part specification must be maintained or alternative solutions evaluated.

Q: Are there any compliance differences between these parts?

A: The AP7365-33EG-13 carries ROHS3 compliance and REACH unaffected status, providing enhanced regulatory alignment for current manufacturing standards. The original part's compliance status was not specified.

Q: What is the package compatibility?

A: Both parts use SOT-223-3 surface-mount packaging with identical pin configuration, supporting direct PCB-level replacement without layout modifications.

Q: How do the protection features compare?

A: Both devices include over-current and over-temperature protection, providing equivalent circuit safeguarding.