R1114Q331B-TR-FE Equivalent & Substitute Parts

Part Overview

The R1114Q331B-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 with integrated enable control and over-current protection features. The part is actively produced and RoHS compliant, designed for surface mount applications in the SC-82A (SOT-343) package format.

Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or when equivalent electrical and mechanical specifications satisfy application requirements.

Substiute Parts

R1114Q331B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 6238R1114Q331B-TR-FE Datasheet

Current PartRFQ

R1180Q331B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 65392R1180Q331B-TR-FE Datasheet

Parametric EquivalentRFQ

R1180Q331C-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 766R1180Q331C-TR-FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R1114Q331B-TR-FE are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Core Substitution Parameters:

• Output voltage: 3.3V fixed
• Output current capability: 150mA
• Maximum input voltage: 6V
• Package format: SC-82A (SOT-343)
• Output configuration: Positive fixed
• Number of regulators: 1
• Mounting type: Surface mount
• Operating temperature range: -40°C ~ 85°C
• Protection features: Over current protection

Acceptable Parameter Variations:

• Dropout voltage: Maximum 0.4V @ 150mA (main part specifies 0.35V)
• Quiescent current: Variations permitted within device series specifications
• PSRR: Not required for substitution eligibility
• Control features: Enable feature acceptable as present or absent

The R1180Q331B-TR-FE and R1180Q331C-TR-FE meet all core substitution criteria and are classified as parametric equivalents within the Nisshinbo Micro Devices Inc. product portfolio.

Parameter Comparison

Engineering Selection Recommendations

R1114Q331B-TR-FE (Primary Part)

The R1114Q331B-TR-FE is the original specified component with active product status and RoHS compliance. This part features a 0.35V maximum dropout voltage at 150mA and includes enable control functionality. Current inventory availability is 6200 pieces.

R1180Q331B-TR-FE (Preferred Substitute)

The R1180Q331B-TR-FE is classified as a parametric equivalent with ROHS3 compliance status. This substitute maintains identical electrical output specifications (3.3V, 150mA) and package format. The maximum dropout voltage is 0.4V at 150mA, representing a 0.05V increase from the primary part. Quiescent current is significantly reduced to 1.5 µA compared to 95 µA in the primary part. Enable control functionality is present. Inventory availability is 65311 pieces. REACH unaffected status is documented.

R1180Q331C-TR-FE (Secondary Substitute)

The R1180Q331C-TR-FE is classified as a parametric equivalent with ROHS3 compliance status. This substitute maintains identical electrical output specifications (3.3V, 150mA) and package format. The maximum dropout voltage is 0.4V at 150mA. Quiescent current is 1.5 µA. Enable control functionality is not specified for this variant. Inventory availability is 750 pieces. REACH unaffected status is documented.

All three parts share identical compliance classifications (EAR99, HTSUS 8542.39.0001) and moisture sensitivity levels (MSL 1, Unlimited).

Frequently Asked Questions (FAQ)

Q: Can R1180Q331B-TR-FE replace R1114Q331B-TR-FE in all applications?

A: The R1180Q331B-TR-FE meets all core electrical and mechanical substitution criteria. The 0.05V increase in maximum dropout voltage (from 0.35V to 0.4V) must be evaluated within specific circuit design margins. Both parts deliver 3.3V at 150mA in identical SC-82A (SOT-343) packages with enable control and over-current protection.

Q: What is the difference between R1180Q331B-TR-FE and R1180Q331C-TR-FE?

A: Both parts are electrically equivalent with identical output voltage (3.3V), output current (150mA), dropout voltage (0.4V @ 150mA), and quiescent current (1.5 µA). The primary difference is that R1180Q331B-TR-FE includes enable control functionality, while R1180Q331C-TR-FE does not specify this feature. Both use the SC-82A (SOT-343) package.

Q: Are all three parts pin-compatible?

A: All three parts use the SC-82A (SOT-343) package format and are surface mount devices. Pin compatibility is determined by the identical package designation. Physical layout and footprint requirements are identical across all three parts.

Q: What is the significance of the quiescent current difference?

A: The primary part R1114Q331B-TR-FE has a quiescent current of 95 µA, while both R1180 series substitutes have 1.5 µA. This represents a 63-fold reduction in standby current consumption. Applications with strict power budget requirements benefit from the lower quiescent current of the R1180 series.

Q: Are there compliance or regulatory differences between the parts?

A: The primary part is RoHS compliant. Both substitute parts are ROHS3 compliant, representing a more recent compliance standard. All three parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. The R1180 series substitutes include documented REACH unaffected status.

Q: What inventory considerations apply to these substitutes?

A: R1114Q331B-TR-FE has 6200 pieces in stock. R1180Q331B-TR-FE has 65311 pieces in stock, providing significantly higher availability. R1180Q331C-TR-FE has 750 pieces in stock. Inventory levels should be evaluated against project timeline and volume requirements.

Q: Can R1180Q331C-TR-FE be used where enable control is required?

A: R1180Q331C-TR-FE does not specify enable control functionality. Applications requiring enable/disable control should use R1114Q331B-TR-FE or R1180Q331B-TR-FE, both of which include this feature.