LM35DZ/LFT2 Temperature Sensor - Equivalent & Substitute Parts

Part Overview

The LM35DZ/LFT2 is an analog temperature sensor manufactured by Texas Instruments, designed for local temperature measurement in the 0°C to 100°C range with a linear output of 10mV/°C. The device operates from a 4V to 30V supply and delivers analog voltage output with ±1.5°C accuracy at 25°C test conditions. The LM35DZ/LFT2 is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production requirements.

Substiute Parts

LM35DZ/LFT2

Texas InstrumentsIn Stock: 967LM35DZ/LFT2 Datasheet

Current PartRFQ

LM35DZ/NOPB

Texas InstrumentsIn Stock: 19413LM35DZ/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM35DZ/LFT2 is determined by strict equivalence across the following critical parameters:

• Sensor type and measurement principle (Analog, Local)
• Temperature sensing range (0°C ~ 100°C)
• Output characteristics (Analog Voltage, 10mV/°C resolution)
• Supply voltage range (4V ~ 30V)
• Accuracy specification (±1.5°C @ 25°C)
• Package and mounting configuration (TO-92-3, Through Hole)
• Regulatory compliance (ROHS3, REACH Unaffected)

The LM35DZ/NOPB meets all these criteria and serves as a direct functional equivalent. The primary distinction between the main part and its substitute is product status and packaging designation.

Parameter Comparison

Engineering Selection Recommendations

The LM35DZ/NOPB is the appropriate selection for applications currently specified with the LM35DZ/LFT2. Both parts share identical electrical and mechanical specifications, with the LM35DZ/NOPB offering the advantage of active product status from Texas Instruments. The LM35DZ/NOPB maintains full ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production continuity. The transition from the obsolete LM35DZ/LFT2 to the LM35DZ/NOPB requires no circuit modifications or design changes, as all functional parameters remain equivalent.

Frequently Asked Questions (FAQ)

Q: Can the LM35DZ/NOPB be used as a direct replacement for the LM35DZ/LFT2?

A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications, temperature range, accuracy, output characteristics, and TO-92-3 package configuration. No circuit modifications are required.

Q: What is the difference between LM35DZ/LFT2 and LM35DZ/NOPB?

A: The LM35DZ/LFT2 is classified as obsolete, while the LM35DZ/NOPB is an active product. The packaging designation differs (LFT2 versus NOPB), but the functional performance and physical package are identical.

Q: Are there any compliance differences between these parts?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. Regulatory requirements are equivalent.

Q: What does the 10mV/°C resolution mean?

A: The output voltage increases linearly by 10 millivolts for each degree Celsius increase in temperature. At 0°C, the output is 0V; at 50°C, the output is 0.5V; at 100°C, the output is 1.0V.

Q: Can this sensor measure temperatures outside the 0°C to 100°C range?

A: The LM35DZ/LFT2 and LM35DZ/NOPB are specified for operation within 0°C to 100°C. Operation outside this range is not within the device specifications.

Q: What supply voltage should be used?

A: Both parts operate with supply voltages between 4V and 30V. The specific voltage selection depends on the application circuit design and available power sources.