RP173N301A-TR-FE Equivalent & Substitute Parts

Part Overview

The RP173N301A-TR-FE is a linear voltage regulator IC manufactured by Nisshinbo Micro Devices Inc., classified as a Power Management (PMIC) component. This device functions as a positive fixed output voltage regulator delivering 150mA at 3V output with integrated enable control and protection features including over-current and reverse-current protection. The part is actively produced and widely available in tape and reel packaging for surface mount applications.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the RP173x series. Alternative part numbers within this series provide identical functional specifications while potentially offering different manufacturing dates, compliance certifications, or inventory availability.

Substiute Parts

RP173N301A-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1026RP173N301A-TR-FE Datasheet

Current PartRFQ

RP173N301B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 6931RP173N301B-TR-FE Datasheet

Parametric EquivalentRFQ

RP173N301D-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1165RP173N301D-TR-FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RP173N301A-TR-FE are identified within the RP173x series based on strict electrical and mechanical parameter equivalence. The substitution logic is based on the following critical parameters that must remain identical:

Electrical Parameters (Must Match):

• Output voltage: 3V fixed
• Maximum output current: 150mA
• Maximum input voltage: 11V
• Dropout voltage: 1.05V @ 150mA
• Quiescent current: 3.7 µA
• Control features: Enable function
• Protection features: Over-current and reverse-current protection
• Operating temperature range: -40°C ~ 85°C

Mechanical Parameters (Must Match):

• Package type: SOT-23-5 (SC-74A, SOT-753)
• Mounting type: Surface mount
• Packaging format: Tape & Reel (TR)
• Moisture sensitivity level: 1 (Unlimited)

Parts RP173N301B-TR-FE and RP173N301D-TR-FE satisfy all electrical and mechanical equivalence criteria and are therefore direct substitutes for the RP173N301A-TR-FE.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RP173N301A-TR-FE, RP173N301B-TR-FE, and RP173N301D-TR-FE—are active products from Nisshinbo Micro Devices Inc. and are suitable for direct substitution based on electrical and mechanical equivalence.

Compliance Considerations:

The RP173N301B-TR-FE carries ROHS3 Compliant certification and includes REACH Unaffected status, providing additional regulatory documentation for applications requiring enhanced compliance tracking. The RP173N301A-TR-FE and RP173N301D-TR-FE carry standard RoHS Compliant certification.

Inventory Availability:

Selection between substitute parts may be influenced by current inventory levels. The RP173N301B-TR-FE maintains the highest inventory availability at 6892 pieces, followed by RP173N301D-TR-FE at 1134 pieces, and RP173N301A-TR-FE at 976 pieces.

Application Compatibility:

All three parts function identically within the specified electrical and thermal operating ranges. PCB layout, schematic design, and thermal management considerations remain unchanged across substitutions.

Frequently Asked Questions (FAQ)

Q: Can RP173N301B-TR-FE be used as a direct replacement for RP173N301A-TR-FE?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical output voltage (3V), output current (150mA), dropout voltage (1.05V @ 150mA), quiescent current (3.7 µA), operating temperature range (-40°C ~ 85°C), and package type (SOT-23-5). No circuit modifications are required.

Q: What is the difference between RP173N301A-TR-FE and RP173N301D-TR-FE?

A: These parts are electrically and mechanically identical. The difference lies in manufacturing date codes and compliance certifications. Both are RoHS Compliant and suitable for identical applications.

Q: Are all three parts available in the same package?

A: Yes. All three parts use the SOT-23-5 package (SC-74A, SOT-753) in tape and reel format. PCB footprints and reflow soldering profiles are identical.

Q: Does the RP173N301B-TR-FE ROHS3 certification affect compatibility?

A: No. ROHS3 Compliant status indicates enhanced regulatory compliance documentation. The part functions identically to RoHS Compliant variants and is fully compatible in all applications.

Q: What are the key electrical parameters that define substitutability?

A: Substitutability is determined by fixed output voltage (3V), maximum output current (150mA), maximum input voltage (11V), dropout voltage (1.05V @ 150mA), quiescent current (3.7 µA), control features (Enable), and protection features (Over-current and reverse-current). All substitute parts maintain these specifications.

Q: Can these parts be used interchangeably in production?

A: Yes. All three parts meet identical electrical specifications, mechanical requirements, and environmental operating conditions. They are suitable for interchangeable use in manufacturing and assembly processes.

Q: What is the moisture sensitivity level for these parts?

A: All three parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life under normal storage conditions without special moisture control requirements.