TMP102AIDRLTG4 Equivalent & Substitute Parts

Part Overview

The TMP102AIDRLTG4 is a digital temperature sensor manufactured by Texas Instruments, designed for local temperature measurement across the -40°C to 125°C range with 12-bit resolution. This component operates via I2C/SMBus interface and is packaged in SOT-563 surface mount configuration. The part is currently classified as obsolete, necessitating identification of equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

TMP102AIDRLTG4

Texas InstrumentsIn Stock: 759TMP102AIDRLTG4 Datasheet

Current PartRFQ

TMP102AIDRLR

Texas InstrumentsIn Stock: 129399TMP102AIDRLR Datasheet

MFR RecommendedRFQ

TMP102AIDRLT

Texas InstrumentsIn Stock: 6125TMP102AIDRLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMP102AIDRLTG4 is determined by the following critical parameters:

• Sensor type and measurement capability (Digital, Local)
• Temperature sensing range (-40°C ~ 125°C)
• Communication interface (I2C/SMBus)
• Supply voltage range (1.4V ~ 3.6V)
• Package type (SOT-563)
• Mounting configuration (Surface Mount)
• Base product series (TMP102)

The identified substitute parts maintain compatibility across these core parameters. Variations in resolution (12-bit vs. 11-bit) and product status (Active vs. Obsolete) are noted but do not preclude functional substitution within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

For applications currently utilizing the TMP102AIDRLTG4, the TMP102AIDRLR is the primary substitute option. This part maintains full electrical and mechanical compatibility while offering the advantage of Active product status, ensuring long-term availability and supply chain stability. Both parts are ROHS3 compliant and carry identical accuracy specifications across the operational temperature range.

The TMP102AIDRLT provides an alternative with matching 12-bit resolution to the original part; however, its Obsolete status presents similar procurement constraints as the primary component.

Selection between TMP102AIDRLR (11-bit resolution) and TMP102AIDRLT (12-bit resolution) depends on application requirements for measurement precision. Both maintain the specified accuracy tolerance and are functionally compatible within the defined electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can TMP102AIDRLR replace TMP102AIDRLTG4 directly?

A: Yes. The TMP102AIDRLR maintains electrical compatibility across supply voltage, temperature range, communication protocol, and accuracy specifications. The 11-bit resolution differs from the original 12-bit specification but operates within the same accuracy tolerance. Pin configuration and package footprint are identical (SOT-563).

Q: What is the significance of the resolution difference between 12-bit and 11-bit variants?

A: Resolution determines the granularity of temperature measurement. The 12-bit variant provides finer incremental steps compared to the 11-bit variant. Both maintain the specified accuracy tolerance of ±2°C to ±3°C across the operational range, making the resolution difference a design consideration rather than a compatibility barrier.

Q: Why is product status (Active vs. Obsolete) important for substitution?

A: Active status indicates ongoing manufacturing and supply availability. Obsolete status signals end-of-life status, which may result in limited inventory and eventual unavailability. For long-term applications, Active status parts provide superior procurement continuity.

Q: Are packaging and mounting configurations identical across all three parts?

A: Yes. All three parts use SOT-563 surface mount packaging with identical pin configuration and mechanical footprint, enabling direct PCB-level substitution without layout modifications.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. TMP102AIDRLR, TMP102AIDRLT, and TMP102AIDRLTG4 are all ROHS3 compliant and carry identical REACH and ECCN classifications, meeting equivalent regulatory requirements for industrial and commercial applications.