LM35AH/NOPB Temperature Sensor Equivalent & Substitute Parts

Part Overview

The LM35AH/NOPB is an analog temperature sensor manufactured by Texas Instruments, designed for local temperature measurement applications. This device operates across a -55°C to 150°C temperature range with 10mV/°C output resolution and ±0.5°C accuracy at 25°C. The part is currently in active production status with robust inventory availability (52,688 pcs in stock). Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component procurement flexibility and supply chain continuity.

Substiute Parts

LM35AH/NOPB

Texas InstrumentsIn Stock: 52783LM35AH/NOPB Datasheet

Current PartRFQ

AD590JH

Analog Devices Inc.In Stock: 78117AD590JH Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM35AH/NOPB are identified based on the following critical parameters that determine functional equivalence:

• Sensor Type: Analog, Local temperature measurement capability
• Supply Voltage Range: 4V ~ 30V compatibility
• Mounting Type: Through Hole configuration
• Package Category: Metal Can (TO-series)
• RoHS Compliance: ROHS3 Compliant status
• Product Status: Active production

The AD590JH from Analog Devices Inc. qualifies as a substitute based on matching sensor type, supply voltage range, through-hole mounting, metal can packaging, RoHS3 compliance, and active product status. Differences in output type (current vs. voltage), temperature range, and accuracy specifications are documented in the parameter comparison table below for engineering evaluation.

Parameter Comparison

Engineering Selection Recommendations

Both the LM35AH/NOPB and AD590JH maintain active production status with ROHS3 compliance and REACH unaffected certifications, ensuring regulatory alignment for current applications. Selection between these parts depends on specific circuit design requirements:

The LM35AH/NOPB provides voltage output with superior accuracy (±0.5°C) and extended temperature range (-55°C to 150°C), suitable for applications requiring high precision and wide operating temperature coverage.

The AD590JH provides current output with broader supply voltage tolerance and active inventory (78,100 pcs), suitable for applications where current-mode signal transmission is preferred or where the -40°C to 125°C range is sufficient.

Both parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, supporting equivalent procurement and logistics handling.

Frequently Asked Questions (FAQ)

Q: Can AD590JH directly replace LM35AH/NOPB in existing circuits?

A: Direct replacement requires circuit redesign. The LM35AH/NOPB outputs analog voltage (10mV/°C), while the AD590JH outputs analog current (1µA/K). Signal conditioning and measurement circuits must be adapted accordingly.

Q: What is the temperature range difference between these parts?

A: The LM35AH/NOPB operates from -55°C to 150°C, while the AD590JH operates from -40°C to 125°C. Applications requiring sub-zero operation below -40°C or temperatures above 125°C must use the LM35AH/NOPB.

Q: Are both parts suitable for new designs?

A: Yes. Both parts maintain active production status with current inventory availability and ROHS3 compliance, supporting new product development and long-term supply continuity.

Q: Do package differences affect mechanical compatibility?

A: Both parts use through-hole metal can packaging (TO-46-3 and TO-52-3 respectively). While pin configurations differ, both fit standard through-hole PCB layouts. Verify specific pinout requirements for your application.

Q: What accuracy difference should I consider?

A: The LM35AH/NOPB provides ±0.5°C accuracy at 25°C, while the AD590JH provides ±5°C accuracy. Applications requiring precision temperature measurement below ±1°C should use the LM35AH/NOPB.

Q: Are supply voltage requirements identical?

A: Yes. Both parts operate with 4V to 30V supply voltage, enabling equivalent power supply design and circuit integration.