R1211D103A-TR-FE Equivalent & Substitute Parts

Part Overview

The R1211D103A-TR-FE is a PWM Step-Up DC-DC Controller IC manufactured by Nisshinbo Micro Devices Inc., classified as a Power Management (PMIC) component. This boost regulator provides positive output control for step-up DC-DC conversion applications in a 6-SON (2.6x1.6) surface mount package. The device is Active in product status with 982 units currently in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product family, ensuring functional interchangeability in circuit designs.

Substiute Parts

R1211D103A-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1005R1211D103A-TR-FE Datasheet

Current PartRFQ

R1211D002B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1481R1211D002B-TR-FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R1211D103A-TR-FE are identified based on strict parametric equivalence within the R1211 base product family. The substitution criteria are defined by the following key parameters:

Electrical Parameters:

• Output Type: PWM
• Function: Step-Up (Boost topology)
• Output Configuration: Positive
• Voltage Supply Range: 2.5V ~ 6V
• Switching Frequency: 700kHz
• Maximum Duty Cycle: 90%
• Operating Temperature Range: -40°C ~ 85°C
• Number of Outputs: 1
• Output Phases: 1

Mechanical Parameters:

• Package Type: 6-SMD, Flat Leads
• Supplier Device Package: 6-SON (2.6x1.6)
• Mounting Type: Surface Mount
• Packaging Format: Tape & Reel (TR)

Compliance Parameters:

• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level: MSL 1 (Unlimited)
• Manufacturer: Nisshinbo Micro Devices Inc.

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The R1211D002B-TR-FE is a direct parametric equivalent to the R1211D103A-TR-FE. Both components share identical electrical specifications, mechanical packaging, and compliance certifications. Selection between these parts should be based on the following engineering considerations:

Product Status: Both parts maintain Active product status, ensuring continued manufacturer support and availability.

Compliance Certifications: Both parts are RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and reliability standards for industrial and commercial applications.

Inventory Availability: The R1211D002B-TR-FE currently has higher inventory availability (1384 units) compared to the R1211D103A-TR-FE (982 units), which may influence procurement decisions for high-volume production requirements.

Functional Interchangeability: The identical electrical parameters, including 700kHz switching frequency, 90% maximum duty cycle, and 2.5V to 6V supply voltage range, ensure direct functional replacement in boost regulator circuit designs without circuit modification.

Package Compatibility: Both parts utilize the same 6-SON (2.6x1.6) surface mount package with flat leads, ensuring PCB layout and assembly process compatibility.

Frequently Asked Questions (FAQ)

Q: Can R1211D002B-TR-FE be used as a direct replacement for R1211D103A-TR-FE?

A: Yes. The R1211D002B-TR-FE is a parametric equivalent with identical electrical specifications, package type, and compliance certifications. Direct substitution is supported without circuit modification.

Q: Are there differences in switching frequency or duty cycle between these parts?

A: No. Both parts operate at 700kHz switching frequency with a maximum duty cycle of 90%. The voltage supply range (2.5V ~ 6V) and operating temperature range (-40°C ~ 85°C) are also identical.

Q: Do both parts use the same package and mounting type?

A: Yes. Both the R1211D103A-TR-FE and R1211D002B-TR-FE use the 6-SON (2.6x1.6) surface mount package with flat leads. PCB footprints and assembly processes are identical.

Q: What is the difference between these part numbers?

A: The part numbers differ in their internal designations (D103A versus D002B), but all critical electrical and mechanical parameters are equivalent. These designations may reflect different manufacturing batches or internal product variants within the R1211 base product family.

Q: Are both parts RoHS compliant?

A: Yes. Both R1211D103A-TR-FE and R1211D002B-TR-FE are RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which part should be selected based on availability?

A: Selection should be based on project procurement timelines and inventory requirements. The R1211D002B-TR-FE has higher current inventory (1384 units) compared to the R1211D103A-TR-FE (982 units).

Q: Are there any control feature differences?

A: No. Both parts include Enable control features. Serial interfaces are not present on either component.