R1114N331D-TR-FE Equivalent & Substitute Parts

Part Overview

The R1114N331D-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 3.3V output at 150mA in a surface-mount SOT-23-5 package. The regulator features an enable control function and over-current protection, operating across the industrial temperature range of -40°C to 85°C. The part maintains Active product status with RoHS compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

R1114N331D-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1296R1114N331D-TR-FE Datasheet

Current PartRFQ

R1180N331B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 4268R1180N331B-TR-FE Datasheet

Parametric EquivalentRFQ

R1180N331C-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 4037R1180N331C-TR-FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R1114N331D-TR-FE are identified based on strict electrical and mechanical parameter alignment. The substitution criteria are:

Core Electrical Parameters (Must Match):

• Output voltage: 3.3V fixed
• Output current capability: 150mA
• Maximum input voltage: 6V
• Operating temperature range: -40°C to 85°C
• Package type: SOT-23-5 (SC-74A)
• Protection features: Over-current protection

Allowable Parameter Variations:

• Voltage dropout: Substitute parts may operate at 0.4V @ 150mA (compared to 0.35V for the main part), representing a 0.05V increase within acceptable linear regulator tolerance
• Quiescent current: Substitute parts operate at 1.5µA (compared to 95µA for the main part), representing improved efficiency
• PSRR: Substitute parts do not specify PSRR values; this parameter is not a substitution barrier
• Control features: One substitute part (R1180N331C-TR-FE) does not specify Enable control; this represents a functional reduction and limits interchangeability in designs requiring enable functionality

All substitute parts are manufactured by Nisshinbo Micro Devices Inc., packaged in Tape & Reel format, and maintain Active product status with RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

R1180N331B-TR-FE is the primary substitute for the R1114N331D-TR-FE. Both parts maintain identical electrical specifications for output voltage, output current, input voltage, and operating temperature range. The R1180N331B-TR-FE features improved quiescent current performance (1.5µA versus 95µA), resulting in lower standby power consumption. The voltage dropout specification increases by 0.05V (0.4V versus 0.35V), which remains within acceptable linear regulator operating margins for most applications. The R1180N331B-TR-FE retains the Enable control feature, ensuring functional compatibility with designs requiring output enable/disable control. Both parts are RoHS3 compliant and carry REACH Unaffected status, meeting current environmental and regulatory requirements.

R1180N331C-TR-FE is a secondary substitute with the same electrical performance as R1180N331B-TR-FE but without specified Enable control functionality. This part is suitable for applications where the enable feature is not required or where the output is permanently enabled. The absence of Enable control specification represents a functional reduction compared to the main part and should be evaluated against specific circuit requirements.

All three parts share identical package geometry (SOT-23-5), operating temperature range, over-current protection, and moisture sensitivity rating, enabling direct mechanical and thermal compatibility in PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can R1180N331B-TR-FE or R1180N331C-TR-FE be used as direct replacements for R1114N331D-TR-FE in existing designs?

A: R1180N331B-TR-FE is a direct substitute with identical electrical performance and control features. R1180N331C-TR-FE is compatible for applications not requiring Enable control functionality. Both parts share the same SOT-23-5 package, pinout compatibility, and operating specifications, allowing direct PCB placement without layout modifications.

Q: What is the significance of the voltage dropout difference between the main part and substitute parts?

A: The R1114N331D-TR-FE specifies 0.35V dropout at 150mA, while R1180N331B-TR-FE and R1180N331C-TR-FE specify 0.4V dropout at the same current. This 0.05V difference is within typical linear regulator tolerance and does not affect circuit functionality in standard applications. Designs with minimum input voltage margins below 4.35V should evaluate this parameter against specific circuit requirements.

Q: Why does the R1180N331C-TR-FE lack Enable control specification?

A: The R1180N331C-TR-FE does not specify Enable control functionality in the provided parameters. This part is suitable for applications where the regulator output is permanently enabled. Designs requiring dynamic output enable/disable control should use R1114N331D-TR-FE or R1180N331B-TR-FE.

Q: Are there differences in RoHS compliance between the main part and substitutes?

A: The R1114N331D-TR-FE carries RoHS Compliant status, while R1180N331B-TR-FE and R1180N331C-TR-FE carry ROHS3 Compliant status. ROHS3 represents the current RoHS Directive 2011/65/EU compliance standard. Both compliance levels are acceptable for new designs and applications requiring environmental regulatory adherence.

Q: What is the advantage of the lower quiescent current in substitute parts?

A: The R1180N331B-TR-FE and R1180N331C-TR-FE operate at 1.5µA quiescent current compared to 95µA for the R1114N331D-TR-FE. This 63-fold reduction in standby current consumption results in lower power dissipation during idle states, benefiting battery-powered and low-power applications.

Q: Are all three parts available in the same packaging format?

A: Yes. All three parts are packaged in SOT-23-5 (SC-74A, SOT-753) surface-mount format with Tape & Reel delivery. The identical package type ensures mechanical and thermal compatibility without PCB redesign.

Q: What compliance certifications apply to all substitute parts?

A: All parts carry ECCN EAR99 classification and HTSUS 8542.39.0001 tariff code. R1180N331B-TR-FE and R1180N331C-TR-FE additionally carry REACH Unaffected status. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating, eliminating moisture-related handling restrictions.