TMP141AIDBVR Equivalent & Substitute Parts

Part Overview

The TMP141AIDBVR is a digital temperature sensor manufactured by Texas Instruments, designed for local temperature measurement across the -40°C to 125°C range. This component features a 9-bit resolution output via SensorPath™ interface and operates on a 2.7V to 5.5V supply voltage. The device is packaged in SOT-23-6 surface mount configuration.

The TMP141AIDBVR is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this temperature sensing solution.

Substiute Parts

TMP141AIDBVR

Texas InstrumentsIn Stock: 2276TMP141AIDBVR Datasheet

Current PartRFQ

TMP102AIDRLR

Texas InstrumentsIn Stock: 129399TMP102AIDRLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMP141AIDBVR is determined by the following critical parameters:

• Sensor Type: Digital, Local temperature measurement capability
• Sensing Temperature Range: Minimum -40°C to 125°C coverage
• Accuracy: ±2°C to ±3°C tolerance band
• Mounting Type: Surface mount configuration
• RoHS Compliance: ROHS3 Compliant status
• Supply Voltage Compatibility: Operating voltage range overlap

The TMP102AIDRLR qualifies as a manufacturer-recommended substitute based on these criteria. Both devices maintain identical local temperature sensing ranges, equivalent accuracy specifications, and ROHS3 compliance. The substitute part extends the operating temperature range to -55°C to 150°C and provides enhanced resolution at 11 bits. However, the substitute employs a different output interface (I2C/SMBus versus SensorPath™) and operates on a reduced supply voltage range (1.4V ~ 3.6V).

Parameter Comparison

Engineering Selection Recommendations

The TMP102AIDRLR is designated as the manufacturer-recommended substitute for the obsolete TMP141AIDBVR. Both components maintain ROHS3 compliance and equivalent accuracy specifications within the -40°C to 125°C sensing range.

Selection of the TMP102AIDRLR requires design verification of the following factors:

• Output interface compatibility: The substitute employs I2C/SMBus protocol instead of SensorPath™
• Supply voltage adjustment: The substitute operates on 1.4V to 3.6V, requiring circuit redesign if the original design utilized the full 2.7V to 5.5V range
• Package footprint change: Migration from SOT-23-6 to SOT-563 necessitates PCB layout modification
• Resolution enhancement: The 11-bit resolution of the substitute provides improved measurement granularity compared to the 9-bit original

The TMP102AIDRLR's active product status ensures long-term availability and ongoing manufacturer support, addressing supply chain continuity concerns associated with the obsolete TMP141AIDBVR.

Frequently Asked Questions (FAQ)

Q: Can the TMP102AIDRLR directly replace the TMP141AIDBVR without circuit modifications?

A: No. While both devices share identical temperature sensing ranges and accuracy specifications, the output interface differs fundamentally. The TMP141AIDBVR uses SensorPath™ output, whereas the TMP102AIDRLR employs I2C/SMBus protocol. Firmware and signal conditioning circuit modifications are required.

Q: What are the package differences between these two parts?

A: The TMP141AIDBVR uses SOT-23-6 packaging, while the TMP102AIDRLR uses SOT-563 packaging. These are physically distinct packages requiring separate PCB footprints and layout designs.

Q: Are both parts RoHS compliant?

A: Yes. Both the TMP141AIDBVR and TMP102AIDRLR are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What is the supply voltage difference between these sensors?

A: The TMP141AIDBVR operates on 2.7V to 5.5V, while the TMP102AIDRLR operates on 1.4V to 3.6V. Designs utilizing the full voltage range of the original part require power supply circuit redesign.

Q: Does the TMP102AIDRLR offer any performance advantages?

A: The TMP102AIDRLR provides 11-bit resolution compared to the 9-bit resolution of the TMP141AIDBVR, offering improved measurement precision. The substitute also extends the maximum operating temperature to 150°C versus 127°C for the original part.

Q: Why is the TMP141AIDBVR classified as obsolete?

A: The TMP141AIDBVR has reached end-of-life status with Texas Instruments. The TMP102AIDRLR represents the active product line continuation for local digital temperature sensing applications in this performance class.