LM35DMX Temperature Sensor Equivalent & Substitute Parts

Part Overview

The LM35DMX is an analog temperature sensor manufactured by Texas Instruments, designed for local temperature measurement applications within the 0°C to 100°C range. This device outputs an analog voltage proportional to temperature at 10mV/°C and operates from a 4V to 30V supply. The LM35DMX is classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. Finding equivalent or substitute parts is necessary for applications requiring active product support, improved compliance certifications, or enhanced inventory availability.

Substiute Parts

LM35DMX

Texas InstrumentsIn Stock: 1273LM35DMX Datasheet

Current PartRFQ

LM35DMX/NOPB

Texas InstrumentsIn Stock: 89876LM35DMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM35DMX is determined by strict equivalence across the following critical parameters:

• Sensor Type: Analog, Local temperature measurement
• Temperature Range: 0°C ~ 100°C
• Output Characteristics: Analog voltage at 10mV/°C
• Supply Voltage Range: 4V ~ 30V
• Accuracy Specification: ±1.5°C @ 25°C
• Package Configuration: 8-SOIC surface mount
• Pin Compatibility: Identical pinout and electrical interface

The LM35DMX/NOPB qualifies as a direct substitute because it maintains identical electrical specifications, temperature range, output resolution, supply voltage requirements, accuracy, and physical packaging. The primary distinction is product lifecycle status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LM35DMX/NOPB is the direct functional equivalent of the LM35DMX. Both devices are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The LM35DMX/NOPB is preferred for new applications and ongoing production due to its Active product status and superior compliance certifications. The LM35DMX/NOPB carries ROHS3 compliance and REACH Unaffected status, whereas the original LM35DMX is RoHS non-compliant and REACH Affected. For applications subject to environmental or regulatory requirements, the LM35DMX/NOPB is the appropriate selection. Both parts are pin-compatible and functionally interchangeable within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Are the LM35DMX and LM35DMX/NOPB electrically identical?

A: Yes. Both devices provide identical sensor type, temperature range (0°C ~ 100°C), output resolution (10mV/°C), supply voltage range (4V ~ 30V), and accuracy (±1.5°C @ 25°C). They are functionally equivalent.

Q: Can I use LM35DMX/NOPB as a direct replacement for LM35DMX in existing designs?

A: Yes. The LM35DMX/NOPB maintains identical pinout, package configuration (8-SOIC), and electrical interface. No circuit modifications are required for substitution.

Q: What is the difference between LM35DMX and LM35DMX/NOPB?

A: The primary differences are product lifecycle status and compliance certifications. The LM35DMX is classified as "Not For New Designs," while the LM35DMX/NOPB is Active. The LM35DMX/NOPB is ROHS3 Compliant and REACH Unaffected, whereas the LM35DMX is RoHS non-compliant and REACH Affected.

Q: Why should I choose LM35DMX/NOPB over LM35DMX?

A: The LM35DMX/NOPB is recommended for new designs and production applications due to its Active status and superior environmental compliance certifications. It ensures long-term availability and regulatory compliance.

Q: Are there any package or mounting differences?

A: No. Both parts use identical 8-SOIC surface mount packaging with 0.154" width (3.90mm). Pin configuration and mechanical dimensions are identical.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix indicates the part is supplied without plumbum (lead-free), reflecting RoHS3 compliance and environmental standards compliance.