NJM319M Equivalent & Substitute Parts Reference

Part Overview

The NJM319M is a general-purpose comparator IC manufactured by Nisshinbo Micro Devices Inc., featuring dual comparator elements with DTL, Open-Collector, RTL, and TTL output types. The device operates across a wide supply voltage range of 5V to 36V (single supply) or ±2.5V to 18V (dual supply), making it suitable for analog signal comparison applications in industrial and consumer electronics.

The NJM319M is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and maintenance requirements for systems utilizing this comparator.

Substiute Parts

NJM319M

Nisshinbo Micro Devices Inc.In Stock: 3088NJM319M Datasheet

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LM119H

Texas InstrumentsIn Stock: 1543LM119H Datasheet

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LM319 MWA

Texas InstrumentsIn Stock: 789LM319 MWA Datasheet

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LM319AMX/NOPB

Texas InstrumentsIn Stock: 2551LM319AMX/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the NJM319M is determined by strict alignment of the following critical parameters:

Functional Equivalence Criteria:

• Dual comparator element count (2 elements required)
• Output type compatibility (DTL, Open-Collector, RTL, TTL)
• Supply voltage range overlap (minimum 5V ~ 36V single supply or ±2.5V ~ 18V dual supply)
• Input offset voltage specification (8mV @ ±15V or better)
• Input bias current specification (1µA @ ±15V or better)
• Output current capability (25mA typical or greater)
• Quiescent current specification (12.5mA maximum or lower)

Packaging and Compliance Criteria:

• Surface mount capability for PCB integration
• RoHS compliance status
• REACH compliance status

The substitute parts identified below meet these criteria within the specified electrical and mechanical parameters. Substitution is valid only when all functional parameters are met or exceeded (improved).

Parameter Comparison

Engineering Selection Recommendations

LM319AMX/NOPB (Primary Substitute - Surface Mount, 14-SOIC)

The LM319AMX/NOPB is the preferred substitute for direct replacement of the NJM319M in new designs and production environments. Both devices utilize the 14-SOIC surface mount package, enabling direct PCB layout compatibility. The LM319AMX/NOPB demonstrates superior electrical performance with input offset voltage of 1mV (versus 8mV) and input bias current of 0.5µA (versus 1µA), while maintaining identical supply voltage ranges and quiescent current specifications. The device is manufactured by Texas Instruments with active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. Operating temperature range of 0°C to 70°C is narrower than the NJM319M; applications requiring -40°C operation require evaluation against specific system requirements.

LM319 MWA (Alternative - Wafersale Die Form)

The LM319 MWA provides functional equivalence with identical electrical specifications to the NJM319M (8mV input offset, 1µA input bias, 12.5mA quiescent current). This device is supplied as bare die in wafersale form, suitable for hybrid circuit integration or custom packaging applications. Active product status and ROHS3 compliance are confirmed. This option is applicable only when custom packaging or hybrid integration is part of the design methodology.

LM119H (Alternative - Through Hole Package)

The LM119H is a functionally equivalent comparator with improved electrical specifications (4mV input offset, 0.5µA input bias) and extended operating temperature range (-55°C to 125°C). However, the TO-100-10 metal can through-hole package requires PCB redesign and is incompatible with surface mount assembly processes. This substitute is applicable only when through-hole assembly capability is available and PCB layout modification is acceptable. Active product status and ROHS3 compliance are confirmed.

Frequently Asked Questions (FAQ)

Q: Can the LM319AMX/NOPB replace the NJM319M without PCB modification?

A: Yes. Both devices use the 14-SOIC surface mount package. Pin-to-pin compatibility and electrical parameter alignment enable direct substitution. The LM319AMX/NOPB demonstrates superior input offset voltage (1mV versus 8mV) and input bias current (0.5µA versus 1µA), making it functionally superior. Operating temperature range differs (-40°C to 85°C for NJM319M versus 0°C to 70°C for LM319AMX/NOPB); verify system requirements for low-temperature operation below 0°C.

Q: What is the difference between the 14-SOIC packages specified for NJM319M and LM319AMX/NOPB?

A: Both are 14-pin SOIC packages but with different body widths. The NJM319M uses 14-SOIC (0.197", 5.00mm width), while the LM319AMX/NOPB uses 14-SOIC (0.154", 3.90mm width). The narrower package of the LM319AMX/NOPB is physically smaller and may require PCB footprint verification. Consult device datasheets for precise pin spacing and land pattern dimensions before PCB layout finalization.

Q: Is the LM119H suitable for surface mount assembly?

A: No. The LM119H is supplied in TO-100-10 metal can through-hole package and requires through-hole PCB assembly methods. Surface mount assembly equipment cannot process this package type. Use of LM119H requires PCB redesign and assembly process modification.

Q: Are all substitute parts RoHS compliant?

A: Yes. The NJM319M is RoHS Compliant. All identified substitutes (LM119H, LM319 MWA, LM319AMX/NOPB) are ROHS3 Compliant, meeting current environmental regulations. REACH compliance status is unaffected for all parts.

Q: What is the product status significance for component selection?

A: The NJM319M is classified as obsolete, indicating discontinued manufacturing and limited future availability. All identified substitutes (LM119H, LM319 MWA, LM319AMX/NOPB) maintain active product status with Texas Instruments, ensuring ongoing production, technical support, and long-term supply chain stability. Active status is critical for production planning and lifecycle management.

Q: Can the LM319 MWA be used in standard PCB assemblies?

A: No. The LM319 MWA is supplied as bare die in wafersale form, intended for hybrid circuit integration or custom packaging only. Standard PCB assembly processes cannot directly utilize bare die. This option requires specialized packaging or hybrid integration capabilities.

Q: What electrical parameters determine substitution validity?

A: Substitution is valid when the candidate part meets or exceeds the following NJM319M specifications: dual comparator elements, DTL/Open-Collector/RTL/TTL output types, 5V to 36V single supply (or ±2.5V to ±18V dual supply), input offset voltage of 8mV or better, input bias current of 1µA or better, output current of 25mA or greater, and quiescent current of 12.5mA or lower. All identified substitutes satisfy these criteria.