R1114D291A-TR-FE Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The R1114D291A-TR-FE is an active production linear voltage regulator IC manufactured by Nisshinbo Micro Devices Inc. This positive fixed output regulator delivers 150mA at 2.9V output with a maximum input voltage of 6V. The device is housed in a SON1612-6 surface mount package and includes enable control and over-current protection features.

Substitute parts are identified when component availability becomes limited, supply chain disruptions occur, or inventory requirements necessitate alternative sourcing from the same manufacturer's product line. The R1114D291A-TR-FE maintains full parametric equivalence with identified substitute models within the R1114x series.

Substiute Parts

R1114D291A-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1145R1114D291A-TR-FE Datasheet

Current PartRFQ

R1114D291D-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 29349R1114D291D-TR-FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R1114D291A-TR-FE are identified based on strict parametric equivalence across all electrical and mechanical specifications. The substitution logic is based on the following critical parameters:

Electrical Equivalence Criteria:

• Output voltage configuration (Positive, Fixed)
• Output voltage level (2.9V)
• Maximum output current (150mA)
• Maximum input voltage (6V)
• Dropout voltage (0.35V @ 150mA)
• Quiescent current (95 µA)
• PSRR performance (70dB ~ 60dB, 1kHz ~ 10kHz)
• Control features (Enable function)
• Protection features (Over Current)
• Operating temperature range (-40°C ~ 85°C)

Mechanical Equivalence Criteria:

• Surface mount mounting type
• SON1612-6 package configuration
• SOT-563 and SOT-666 case compatibility

Compliance Criteria:

• RoHS Compliant status
• Moisture Sensitivity Level 1 (Unlimited)
• Active product status

Substitute parts must match all parameters listed above without exception. Parts are sourced from the same manufacturer (Nisshinbo Micro Devices Inc.) within the R1114x series to ensure design continuity and performance consistency.

Parameter Comparison

Engineering Selection Recommendations

The R1114D291D-TR-FE is a direct parametric equivalent to the R1114D291A-TR-FE and is suitable for component substitution in all applications where the primary part is specified.

Selection Basis:

Both parts maintain identical electrical performance across all specified parameters including output voltage, current delivery, dropout voltage, quiescent current, and PSRR characteristics. Both devices operate across the full temperature range of -40°C to 85°C and incorporate identical control and protection features.

Both parts are manufactured by Nisshinbo Micro Devices Inc. within the R1114x series, ensuring design continuity and manufacturing consistency. Both maintain active product status, confirming ongoing manufacturer support and availability.

Compliance certifications are identical for both parts: RoHS Compliant status and Moisture Sensitivity Level 1 (Unlimited) are maintained across both devices. Both parts are supplied in identical packaging configurations (Tape & Reel) with SON1612-6 package specifications.

The R1114D291D-TR-FE is available in significantly higher inventory quantities (29,300 pieces) compared to the R1114D291A-TR-FE (1,132 pieces), making it suitable for high-volume production requirements or extended supply chain planning.

Frequently Asked Questions (FAQ)

Q: Are the R1114D291A-TR-FE and R1114D291D-TR-FE electrically interchangeable?

A: Yes. Both parts deliver identical electrical performance across all specified parameters including 2.9V fixed output, 150mA maximum output current, 0.35V maximum dropout voltage, and 95 µA quiescent current. PSRR performance, control features, and protection features are identical.

Q: Can the R1114D291D-TR-FE be used as a direct replacement in existing PCB designs?

A: Yes. Both parts use identical SON1612-6 package specifications with SOT-563 and SOT-666 case compatibility. Pin configuration, footprint, and mounting requirements are identical, allowing direct substitution without PCB redesign.

Q: Are there any temperature or environmental differences between these parts?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C. Both maintain Moisture Sensitivity Level 1 (Unlimited) and RoHS Compliant status.

Q: What is the difference between the R1114D291A-TR-FE and R1114D291D-TR-FE part numbers?

A: The part numbers differ only in the suffix designation (A versus D). Both parts are manufactured by Nisshinbo Micro Devices Inc. within the R1114x series and maintain identical electrical and mechanical specifications. The suffix variation reflects internal manufacturing or distribution tracking but does not affect functional performance or compatibility.

Q: Can these parts be used in high-volume production?

A: Yes. Both parts are active production devices with RoHS Compliant status. The R1114D291D-TR-FE offers higher inventory availability (29,300 pieces) compared to the R1114D291A-TR-FE (1,132 pieces), making it suitable for large-scale manufacturing requirements.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical compliance certifications: RoHS Compliant status, Moisture Sensitivity Level 1 (Unlimited), ECCN EAR99, and HTSUS 8542.39.0001 classification.

Q: What control and protection features are included?

A: Both parts include Enable control functionality and Over Current protection. These features are identical across both part numbers.