RP130K331A-TR Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The RP130K331A-TR is a linear voltage regulator IC manufactured by Nisshinbo Micro Devices Inc., classified as a Power Management (PMIC) component. This device provides a fixed positive output of 3.3V at 150mA with integrated enable control and over-current protection features. The part is housed in a 4-UDFN Exposed Pad package and is supplied in Tape & Reel packaging format.

The RP130K331A-TR maintains Active product status with 1148 pieces currently in stock. Equivalent substitute parts are available within the RP130x series to accommodate supply chain requirements, inventory optimization, or design flexibility while maintaining identical electrical and mechanical specifications.

Substiute Parts

RP130K331A-TR

Nisshinbo Micro Devices Inc.In Stock: 1226RP130K331A-TR Datasheet

Current PartRFQ

RP130K331B-TR-Y

Nisshinbo Micro Devices Inc.In Stock: 11325RP130K331B-TR-Y Datasheet

Parametric EquivalentRFQ

RP130K331D-TR

Nisshinbo Micro Devices Inc.In Stock: 45392RP130K331D-TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RP130K331A-TR are identified based on parametric equivalence within the RP130x series. The substitution criteria are strictly defined by the following key parameters:

• Output Voltage (Fixed): 3.3V
• Output Current: 150mA
• Maximum Input Voltage: 6.5V
• Dropout Voltage: 0.51V @ 150mA
• Quiescent Current: 58 µA
• PSRR: 80dB (1kHz)
• Package / Case: 4-UDFN Exposed Pad
• Supplier Device Package: DFN(PL)1010-4
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C ~ 105°C (TA)
• Control Features: Enable
• Protection Features: Over Current

All substitute parts maintain identical electrical performance and mechanical compatibility. Differences exist only in manufacturing date codes and RoHS compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RP130K331A-TR, RP130K331B-TR-Y, and RP130K331D-TR—are functionally equivalent and maintain Active product status. Selection between these parts is based on the following factors:

RoHS Compliance: The RP130K331A-TR carries RoHS Compliant certification, while RP130K331B-TR-Y and RP130K331D-TR carry ROHS3 Compliant certification. Applications requiring ROHS3 compliance should utilize RP130K331B-TR-Y or RP130K331D-TR.

REACH Status: RP130K331B-TR-Y and RP130K331D-TR include explicit REACH Unaffected designation, providing additional regulatory documentation for applications subject to REACH requirements.

Inventory Availability: RP130K331D-TR offers the highest inventory level at 45300 pieces, followed by RP130K331B-TR-Y at 11293 pieces, and RP130K331A-TR at 1148 pieces. Selection based on supply chain requirements and lead time considerations is appropriate.

Manufacturing Date Code: Differences in part number suffixes (A, B-Y, D) indicate distinct manufacturing date codes. Selection based on procurement timing or inventory rotation policies is permissible.

All parts share identical electrical specifications, package dimensions, and thermal characteristics, ensuring direct interchangeability in circuit design and PCB layout.

Frequently Asked Questions (FAQ)

Q: Are RP130K331A-TR, RP130K331B-TR-Y, and RP130K331D-TR electrically interchangeable?

A: Yes. All three parts deliver identical electrical performance: 3.3V fixed output at 150mA, 0.51V maximum dropout voltage, 58 µA quiescent current, and 80dB PSRR at 1kHz. They are direct substitutes for circuit operation.

Q: Can I use RP130K331B-TR-Y or RP130K331D-TR as a replacement for RP130K331A-TR in existing designs?

A: Yes. The parts are mechanically and electrically equivalent. PCB layout, schematic connections, and thermal management remain unchanged. No design modifications are required.

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

A: RoHS Compliant indicates conformance to the original Restriction of Hazardous Substances directive. ROHS3 Compliant indicates conformance to the updated RoHS 3 directive (2015/863/EU), which includes additional restricted substances. Applications requiring ROHS3 compliance must use RP130K331B-TR-Y or RP130K331D-TR.

Q: Are all three parts suitable for the full operating temperature range of -40°C to 105°C?

A: Yes. All three parts maintain specified performance across the -40°C to 105°C operating temperature range.

Q: What does the DFN(PL)1010-4 package designation indicate?

A: DFN(PL)1010-4 specifies a 4-pin Dual Flat No-lead package with exposed pad, measuring 1.0mm × 1.0mm. All three parts use this identical package format.

Q: Can I mix RP130K331A-TR, RP130K331B-TR-Y, and RP130K331D-TR in the same production batch?

A: Yes. The parts are functionally equivalent and can be used interchangeably. However, manufacturing date codes differ, which may be relevant for traceability or quality control documentation.

Q: What is the Moisture Sensitivity Level (MSL) rating for these parts?

A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply.

Q: Are these parts RoHS compliant for export to the European Union?

A: RP130K331B-TR-Y and RP130K331D-TR carry ROHS3 Compliant certification, meeting current EU requirements. RP130K331A-TR carries RoHS Compliant certification. Verify specific regulatory requirements for your application and destination market.