LM1815MX Equivalent & Substitute Parts

Part Overview

The LM1815MX is a sensor interface integrated circuit manufactured by Texas Instruments, designed for adaptive variable sensor applications. This component operates as a logic-input, logic-output interface device in a 14-SOIC surface mount package. The LM1815MX is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The LM1815MX/NOPB variant provides a direct functional and electrical equivalent with active product status.

Substiute Parts

LM1815MX

Texas InstrumentsIn Stock: 2100LM1815MX Datasheet

Current PartRFQ

LM1815MX/NOPB

Texas InstrumentsIn Stock: 1373LM1815MX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The LM1815MX/NOPB is classified as a direct substitute based on the following critical parameters that determine functional and electrical equivalence:

• Identical base product number (LM1815)
• Identical package type and dimensions (14-SOIC, 0.154", 3.90mm Width)
• Identical mounting technology (Surface Mount)
• Identical electrical specifications (Logic input/output, 6 mA supply current, -40°C ~ 125°C operating range)
• Identical sensor interface functionality
• Identical moisture sensitivity level (MSL 1)

The primary distinction between the LM1815MX and LM1815MX/NOPB is the packaging format (bulk versus Tape & Reel) and product status (Obsolete versus Active), with the latter offering improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The LM1815MX/NOPB is the direct functional equivalent for the obsolete LM1815MX. Selection of the LM1815MX/NOPB is appropriate for applications requiring:

• Active product status with ongoing manufacturer support
• ROHS3 compliance for regulated markets and supply chain requirements
• Tape & Reel packaging for automated assembly processes
• Identical electrical and thermal performance characteristics

The LM1815MX remains suitable for legacy systems where existing inventory is available and RoHS compliance is not a requirement. Both variants maintain identical sensor interface functionality, package dimensions, and operating specifications.

Frequently Asked Questions (FAQ)

Q: Can the LM1815MX/NOPB be used as a direct replacement for the LM1815MX?

A: Yes. The LM1815MX/NOPB is electrically and functionally identical to the LM1815MX. Both components share identical package dimensions (14-SOIC), mounting type (Surface Mount), electrical specifications (6 mA supply current, -40°C ~ 125°C operating range), and sensor interface functionality. The primary differences are product status (Active versus Obsolete) and RoHS compliance.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging is suitable for manual assembly or small-volume applications. Tape & Reel (TR) packaging is designed for automated pick-and-place assembly processes and is standard for high-volume production. Both packaging formats contain identical components with identical electrical performance.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both the LM1815MX and LM1815MX/NOPB operate at identical supply current (6 mA) and temperature range (-40°C ~ 125°C). Thermal and electrical performance is equivalent.

Q: Why is the LM1815MX marked as obsolete?

A: Obsolete status indicates that the manufacturer has discontinued production of this part number in its original packaging format. The LM1815MX/NOPB represents the active continuation of this product line with updated compliance certifications.

Q: Does RoHS compliance affect component functionality?

A: No. ROHS3 compliance affects material composition and manufacturing processes but does not alter electrical performance, functionality, or operating specifications. Both variants are functionally equivalent.