LM35CZ/NOPB Equivalent & Substitute Parts

Part Overview

The LM35CZ/NOPB is an analog temperature sensor manufactured by Texas Instruments, designed for local temperature measurement across a -40°C to 110°C range with 10mV/°C output resolution. This active product operates on a 4V to 30V supply and delivers ±1°C accuracy at 25°C test conditions. The TO-92-3 through-hole package enables direct integration into analog measurement circuits. Substitute parts are identified when design requirements shift toward extended temperature ranges, lower supply voltage operation, or alternative resolution specifications while maintaining compatible package geometry and output characteristics.

Substiute Parts

LM35CZ/NOPB

Texas InstrumentsIn Stock: 5092LM35CZ/NOPB Datasheet

Current PartRFQ

TMP35GT9Z

Analog Devices Inc.In Stock: 1992TMP35GT9Z Datasheet

MFR RecommendedRFQ

TMP36GT9Z

Analog Devices Inc.In Stock: 22881TMP36GT9Z Datasheet

MFR RecommendedRFQ

TMP37FT9Z

Analog Devices Inc.In Stock: 1289TMP37FT9Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by three core criteria: package compatibility (TO-92-3 through-hole mounting), output type (analog voltage), and functional overlap within the sensing temperature range. The LM35CZ/NOPB operates within -40°C to 110°C; substitute parts must either fully contain this range or provide measurable coverage of the application's actual operating window. Resolution (10mV/°C vs. 20mV/°C) and supply voltage requirements (4V–30V vs. 2.7V–5.5V) define secondary selection factors based on circuit design constraints. All identified substitutes maintain TO-92-3 package geometry, through-hole mounting, and active product status with ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

TMP36GT9Z provides the closest functional match for direct substitution. It covers the full -40°C to 110°C range of the LM35CZ/NOPB with extended upper range to 125°C, maintains 10mV/°C resolution, and operates on 2.7V–5.5V supply. Accuracy is ±3°C to ±4°C across the full range. This part is suitable when supply voltage can be reduced below 4V or when extended temperature operation to 125°C is required. All three substitutes are active products with ROHS3 compliance and REACH unaffected status.

TMP35GT9Z operates within 10°C to 125°C, excluding the -40°C lower bound of the original part. Selection is appropriate only when minimum operating temperature does not fall below 10°C. Supply voltage requirement is 2.7V–5.5V with ±3°C to ±4°C accuracy.

TMP37FT9Z provides 20mV/°C resolution (double the LM35CZ/NOPB), covering 5°C to 100°C. This part is applicable when higher output sensitivity is required and the application operates within the 5°C to 100°C window. Supply voltage is 2.7V–5.5V.

Frequently Asked Questions (FAQ)

Q: Can TMP36GT9Z replace LM35CZ/NOPB in all applications? A: TMP36GT9Z is functionally compatible for applications operating within -40°C to 110°C. The primary design change is reduced supply voltage range (2.7V–5.5V vs. 4V–30V). Verify that your circuit can operate at the lower voltage minimum before substitution.

Q: What is the impact of different accuracy specifications? A: LM35CZ/NOPB specifies ±1°C at 25°C. TMP35GT9Z and TMP36GT9Z specify ±3°C to ±4°C across their operating ranges. Applications requiring ±1°C accuracy at 25°C must account for this difference in system design.

Q: Why does TMP37FT9Z have 20mV/°C instead of 10mV/°C? A: TMP37FT9Z provides doubled output sensitivity. This increases analog-to-digital converter resolution in digitized systems but requires circuit redesign to accommodate the higher voltage swing per degree Celsius.

Q: Are all substitutes available in the same package? A: Yes. All listed substitutes use TO-92-3 through-hole packaging, enabling direct physical replacement on printed circuit boards designed for LM35CZ/NOPB.

Q: What compliance certifications apply to all parts? A: All parts are ROHS3 compliant and REACH unaffected. All maintain active product status with no planned obsolescence.