R1180D281C-TR-FE Equivalent & Substitute Parts

Part Overview

The R1180D281C-TR-FE is a linear voltage regulator IC manufactured by Nisshinbo Micro Devices Inc., classified as a Power Management (PMIC) component. This device delivers a fixed positive output of 2.8V at 150mA with a maximum dropout voltage of 0.4V, housed in a SON1612-6 surface mount package. The part is currently in active production status with 1,063 units available in inventory.

Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles. Substitute parts must maintain electrical and mechanical compatibility while meeting the same functional requirements.

Substiute Parts

R1180D281C-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1158R1180D281C-TR-FE Datasheet

Current PartRFQ

R1180D281B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 3583R1180D281B-TR-FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the R1180D281C-TR-FE is determined by strict alignment of the following critical parameters:

Electrical Compatibility Requirements:

• Fixed output voltage of 2.8V
• Output current rating of 150mA
• Maximum input voltage of 6V
• Maximum dropout voltage of 0.4V @ 150mA
• Quiescent current of 1.5 µA
• Operating temperature range of -40°C ~ 85°C
• Over Current protection feature

Mechanical Compatibility Requirements:

• SON1612-6 package (SOT-563, SOT-666 equivalent)
• Surface mount mounting type

Compliance Requirements:

• RoHS compliance status
• Moisture Sensitivity Level 1 (Unlimited)

The R1180D281B-TR-FE meets all electrical and mechanical parameters specified for the R1180D281C-TR-FE, establishing it as a parametric equivalent. Both parts share the same base product number (R1180) and belong to the same product series.

Parameter Comparison

Engineering Selection Recommendations

R1180D281C-TR-FE (Primary Part):

• Current inventory: 1,063 units
• Product status: Active
• RoHS Compliant
• Suitable for applications requiring standard linear regulation at 2.8V, 150mA

R1180D281B-TR-FE (Substitute Part):

• Current inventory: 3,533 units
• Product status: Active
• ROHS3 Compliant (enhanced compliance standard)
• Includes Enable control feature for additional circuit control capability
• Higher inventory availability supports supply chain continuity

Both parts are manufactured by Nisshinbo Micro Devices Inc. and maintain identical electrical and mechanical specifications. The R1180D281B-TR-FE provides enhanced compliance certification (ROHS3) and includes an Enable control feature not specified in the main part. Selection between these parts should be based on application requirements for the Enable feature and compliance certification level needed for the end application.

Frequently Asked Questions (FAQ)

Q: Can the R1180D281B-TR-FE be used as a direct replacement for the R1180D281C-TR-FE?

A: Yes. Both parts deliver identical electrical performance with 2.8V fixed output at 150mA, matching dropout voltage, quiescent current, and operating temperature specifications. Both use the SON1612-6 surface mount package. The R1180D281B-TR-FE includes an Enable control feature not present in the main part, which provides additional circuit control capability without affecting core regulator function.

Q: Are there package compatibility concerns when substituting these parts?

A: No. Both the R1180D281C-TR-FE and R1180D281B-TR-FE use the SON1612-6 package (SOT-563, SOT-666 equivalent) with surface mount mounting. PCB layout and footprint requirements are identical.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 represents an enhanced compliance certification standard. The R1180D281B-TR-FE carries ROHS3 Compliant status, indicating compliance with the most current RoHS directive requirements. Both certifications are compatible for applications requiring RoHS compliance.

Q: Does the Enable control feature on the R1180D281B-TR-FE affect circuit design?

A: The Enable feature provides additional control capability for power management applications. If the design does not utilize this feature, the part functions identically to the R1180D281C-TR-FE. If the design requires enable/disable functionality, the R1180D281B-TR-FE provides this capability without design modification.

Q: Are there inventory considerations for part selection?

A: The R1180D281B-TR-FE has significantly higher inventory availability (3,533 units versus 1,063 units for the main part). For applications without specific design constraints favoring the main part, the substitute offers improved supply chain continuity.

Q: What are the critical electrical parameters that must match for substitution?

A: The following parameters must remain identical: output voltage (2.8V), output current (150mA), maximum input voltage (6V), dropout voltage (0.4V @ 150mA), quiescent current (1.5 µA), and operating temperature range (-40°C ~ 85°C). Both substitute parts meet these requirements.