TMP512AIRSAT Equivalent & Substitute Parts

Part Overview

The TMP512AIRSAT is a temperature monitoring system sensor with dual remote sensing capability, manufactured by Texas Instruments. This device integrates an internal temperature sensor, external sensor interface, and watchdog functionality in a 16-QFN package. The component features I2C/SMBUS serial output with alarm capability and operates across an extended temperature range of -40°C to 125°C.

The TMP512AIRSAT is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term product availability for applications requiring temperature monitoring and system watchdog functions.

Substiute Parts

TMP512AIRSAT

Texas InstrumentsIn Stock: 1411TMP512AIRSAT Datasheet

Current PartRFQ

TMP513AIRSAT

Texas InstrumentsIn Stock: 1335TMP513AIRSAT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMP512AIRSAT is determined by the following critical parameters:

• Manufacturer: Texas Instruments (same manufacturer ensures design compatibility and register-level compatibility)
• Function: Temp Monitoring System (Sensor), Watchdog (identical functional requirement)
• Sensor Type: Internal and External (same sensing architecture)
• Sensing Temperature Range: -40°C ~ 125°C (identical operating range)
• Accuracy: ±2.5°C Local (Max), ±5°C Remote (Max) (identical measurement precision)
• Output Type: 2-Wire Serial, I2C/SMBUS (identical communication protocol)
• Output Alarm: Yes (identical alarm capability)
• Voltage Supply: 3V ~ 26V (identical supply voltage range)
• Package / Case: 16-VQFN Exposed Pad (identical physical footprint and pinout)
• Mounting Type: Surface Mount (identical assembly method)

The TMP513AIRSAT meets all substitution criteria as a parametric equivalent. The primary distinction between these parts is the number of remote sensor channels: the TMP512AIRSAT supports dual remote sensing, while the TMP513AIRSAT supports triple remote sensing. Both devices share identical electrical specifications, communication protocols, accuracy ratings, and physical packaging.

Parameter Comparison

Engineering Selection Recommendations

Both the TMP512AIRSAT and TMP513AIRSAT are classified as obsolete products. Selection between these parts should be based on the specific application requirements for remote sensor channels:

• TMP512AIRSAT: Suitable for applications requiring dual remote temperature sensing capability
• TMP513AIRSAT: Suitable for applications requiring triple remote temperature sensing capability

Both devices maintain identical electrical performance, accuracy specifications, communication protocols, and physical packaging. Both are ROHS3 compliant and carry identical moisture sensitivity ratings. The choice between these parts depends solely on whether the application design requires two or three external temperature sensor inputs.

Frequently Asked Questions (FAQ)

Q: Can the TMP513AIRSAT directly replace the TMP512AIRSAT in existing designs?

A: The TMP513AIRSAT is electrically and physically compatible with the TMP512AIRSAT. Both devices share identical pinout, package dimensions, supply voltage requirements, communication protocols, and accuracy specifications. However, the TMP513AIRSAT provides three remote sensor channels instead of two. Designs utilizing only two remote sensors will function correctly with the TMP513AIRSAT, with the third channel remaining unused.

Q: Are there any firmware or software modifications required when substituting these parts?

A: Both devices use identical I2C/SMBUS communication protocols and register architectures. Software compatibility depends on whether the application firmware explicitly addresses the third remote sensor channel present in the TMP513AIRSAT. Applications designed for dual-channel operation will operate without modification.

Q: What is the significance of the packaging difference between Cut Tape (CT) and Tape & Reel (TR)?

A: Cut Tape and Tape & Reel represent different supply formats for the same physical component. Cut Tape is supplied in individual strips, while Tape & Reel is supplied on continuous reels for automated assembly. The actual component specifications, pinout, and electrical performance are identical. Packaging format selection depends on manufacturing volume and assembly equipment capabilities.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the TMP512AIRSAT and TMP513AIRSAT operate across the identical temperature range of -40°C to 125°C with identical accuracy specifications of ±2.5°C for local sensing and ±5°C for remote sensing.

Q: What compliance certifications apply to both parts?

A: Both devices are ROHS3 compliant, carry REACH Unaffected status, and are classified under ECCN EAR99. Both maintain Moisture Sensitivity Level 2 with a 1-year shelf life rating.