NCT3107S TR Equivalent & Substitute Parts

Part Overview

The NCT3107S TR is a DDR Bus Termination Regulator manufactured by Nuvoton Technology Corporation, classified as a Power Management IC (PMIC) in the 8-SOIC surface mount package. This device functions as a voltage converter and regulator for DDR bus termination applications, delivering a single regulated output from input voltages ranging from 1.5V to 5V.

The NCT3107S TR carries a "Not For New Designs" product status, indicating it is obsolete or in end-of-life phase. This status necessitates identification of active alternative components that maintain electrical and mechanical compatibility for existing applications or redesigns requiring equivalent functionality.

Substiute Parts

NCT3107S TR

Nuvoton Technology CorporationIn Stock: 1007NCT3107S TR Datasheet

Current PartRFQ

NCT3101S TR

Nuvoton Technology CorporationIn Stock: 1226NCT3101S TR Datasheet

MFR RecommendedRFQ

NCT3103S TR

Nuvoton Technology CorporationIn Stock: 840NCT3103S TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the NCT3107S TR are qualified based on the following criteria:

• Manufacturer: Nuvoton Technology Corporation (same manufacturer ensures design compatibility and application alignment)
• Package / Case: 8-SOIC (0.154", 3.90mm Width) (identical footprint for direct PCB replacement)
• Mounting Type: Surface Mount (same assembly process compatibility)
• Number of Outputs: 1 (functional equivalence for single-output regulation)
• Operating Temperature Range: -40°C ~ 85°C (matching thermal specifications)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected (environmental and regulatory alignment)

The substitute parts NCT3101S TR and NCT3103S TR meet these core substitution criteria. Both are active products from Nuvoton Technology Corporation in the same 8-SOIC package, supporting DDR bus termination regulator applications with compatible thermal and compliance profiles.

Parameter Comparison

Engineering Selection Recommendations

NCT3101S TR is the primary substitute for the NCT3107S TR. This part is an active product with identical package, mounting type, output count, and operating temperature range. The NCT3101S TR extends the input voltage range to 1V ~ 5.5V, providing broader input compatibility compared to the main part's 1.5V ~ 5V specification. Both parts maintain ROHS3 compliance and REACH unaffected status. The NCT3101S TR carries MSL 3 (168 Hours) versus the main part's MSL 1 (Unlimited), requiring appropriate moisture control during storage and assembly.

NCT3103S TR is listed as an active substitute; however, critical electrical and mechanical parameters are not specified in available documentation. This part is suitable only when complete parameter alignment with the NCT3107S TR can be independently verified through the manufacturer's datasheet.

Frequently Asked Questions (FAQ)

Q: Can NCT3101S TR be used as a direct replacement for NCT3107S TR?

A: Yes. Both parts share identical 8-SOIC package geometry, surface mount configuration, single output topology, and -40°C to 85°C operating temperature range. The NCT3101S TR is an active product, whereas the NCT3107S TR is not for new designs. The extended input voltage range (1V ~ 5.5V) of the NCT3101S TR is compatible with applications designed for the NCT3107S TR's 1.5V ~ 5V input specification.

Q: What is the difference in Moisture Sensitivity Level (MSL) between the main part and substitutes?

A: The NCT3107S TR has MSL 1 (Unlimited), allowing indefinite storage without moisture control. The NCT3101S TR and NCT3103S TR have MSL 3 (168 Hours), requiring that components be used within 168 hours of package opening or stored in controlled humidity conditions. This affects supply chain handling and assembly scheduling.

Q: Are all substitute parts in the same package?

A: The NCT3101S TR is confirmed in the 8-SOIC (0.154", 3.90mm Width) package, identical to the main part. The NCT3103S TR package specification is not provided in available data and must be confirmed before selection.

Q: Do substitute parts maintain the same regulatory compliance?

A: Yes. All listed parts are ROHS3 Compliant and REACH Unaffected, matching the regulatory status of the NCT3107S TR.

Q: What is the input voltage range difference?

A: The NCT3107S TR accepts 1.5V ~ 5V input. The NCT3101S TR accepts 1V ~ 5.5V input, providing a wider operating window. Applications designed within the NCT3107S TR's range operate within the NCT3101S TR's specification.