NJM723M Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The NJM723M is a linear voltage regulator IC manufactured by Nisshinbo Micro Devices Inc., designed for positive adjustable output applications with 150mA current capability. This component operates as a single-output positive adjustable regulator in a 14-DMP surface mount package.

The NJM723M is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Substiute Parts

NJM723M

Nisshinbo Micro Devices Inc.In Stock: 3636NJM723M Datasheet

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UA723CNS

Texas InstrumentsIn Stock: 2292UA723CNS Datasheet

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UA723CNSR

Texas InstrumentsIn Stock: 4463UA723CNSR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the NJM723M are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Output Configuration: Positive
• Output Type: Adjustable
• Number of Regulators: 1
• Voltage - Input (Max): 40V
• Voltage - Output (Min/Fixed): 2V
• Voltage - Output (Max): 37V
• Current - Output: 150mA
• Mounting Type: Surface Mount

Mechanical Parameters (Must Be Compatible):

• Package / Case: 14-SOIC form factor
• Pin count: 14 pins

The substitute parts UA723CNS and UA723CNSR, both manufactured by Texas Instruments, meet all electrical parameter requirements and are housed in compatible 14-SOIC packages. Both parts are classified as active product status, ensuring ongoing availability and support.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes: UA723CNS and UA723CNSR

Both Texas Instruments parts UA723CNS and UA723CNSR provide direct electrical equivalence to the NJM723M. The selection between these two substitute options depends on packaging and supply requirements:

UA723CNS is supplied in bulk packaging and is suitable for applications where tape and reel packaging is not required.

UA723CNSR is supplied in tape and reel (TR) format and is optimized for automated assembly processes and high-volume production environments.

Both substitute parts carry active product status, ensuring long-term availability and manufacturer support. Both parts meet ROHS3 compliance requirements, exceeding the RoHS compliance of the original NJM723M. Both parts maintain MSL Level 1 (Unlimited) moisture sensitivity classification, matching the original component.

Operating Temperature Consideration: The substitute parts operate within 0°C ~ 70°C, which is narrower than the NJM723M range of -20°C ~ 75°C. Applications requiring operation below 0°C or above 70°C must evaluate this parameter against system requirements.

Package Dimensions: The substitute parts are housed in 14-SOIC packages with slightly larger width (0.209" vs. 0.197"), which may require PCB layout verification for space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can UA723CNS and UA723CNSR be used interchangeably with NJM723M?

A: Yes. Both parts meet all electrical parameter requirements for the NJM723M, including output configuration, voltage ranges, and current output. The primary difference is packaging format: UA723CNS is supplied in bulk, while UA723CNSR is supplied in tape and reel format.

Q: What is the difference between UA723CNS and UA723CNSR?

A: Both parts are electrically identical. The difference is in packaging and supply format. UA723CNS is supplied in bulk packaging, while UA723CNSR is supplied in tape and reel (TR) format for automated assembly processes.

Q: Are there operating temperature limitations when substituting with UA723CNS or UA723CNSR?

A: Yes. The substitute parts operate within 0°C ~ 70°C, compared to the NJM723M range of -20°C ~ 75°C. If your application requires operation below 0°C or above 70°C, the operating temperature range of the substitute parts must be evaluated against your system requirements.

Q: Will the substitute parts fit the same PCB footprint as NJM723M?

A: Both substitute parts use 14-SOIC packages, which are mechanically compatible. However, the package width differs slightly (0.209" for substitutes vs. 0.197" for NJM723M). PCB layouts with tight spacing constraints should be reviewed to confirm adequate clearance.

Q: What is the compliance status of the substitute parts?

A: Both UA723CNS and UA723CNSR are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. Both parts maintain MSL Level 1 (Unlimited) moisture sensitivity classification.

Q: Why is the NJM723M classified as obsolete?

A: The NJM723M is listed as obsolete product status. The active substitute parts UA723CNS and UA723CNSR provide equivalent functionality and are recommended for new designs and ongoing production support.