TMP451AQDQFRQ1 Texas Instruments Integrated Circuit (WSON-8) In Stock
The TMP451AQDQFRQ1 is an automotive-qualified 12-bit digital temperature sensor from Texas Instruments with a 2-wire SMBus/I2C-compatible serial interface, 1°C maximum accuracy, and AEC-Q100 qualification in a compact 8-pin WSON package (2mm x 2mm x 0.75mm). It measures local and remote junction temperatures for thermal management in automotive and industrial systems. Available from authorized distributors worldwide with in-stock inventory and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- WSON-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMP451AQDQFRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7648(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TMP451AQDQFRQ1?
- AEC-Q100 automotive-qualified 12-bit digital temperature sensor for reliable operation in harsh automotive environments
- 1°C maximum accuracy for both local and remote diode-connected transistor temperature measurements
- 2-wire SMBus/I2C-compatible interface for seamless integration with automotive SoCs, MCUs, and application processors
- Compact 8-pin WSON package (2mm x 2mm x 0.75mm) for space-constrained automotive module designs
- Remote temperature measurement capability supports monitoring of CPU/GPU junction temperatures via diode-connected transistors
What is TMP451AQDQFRQ1 used for?
The TMP451AQDQFRQ1 is designed for thermal management in automotive infotainment systems, ADAS processors, and powertrain control units where precise CPU and ambient temperature monitoring is required for dynamic thermal throttling and fan control. Its AEC-Q100 qualification and extended automotive temperature range make it suitable for under-hood and cabin electronics in passenger vehicles. The device is also used in industrial computing modules, server management controllers, and battery management systems requiring accurate remote junction temperature monitoring over SMBus.
What are the specifications of TMP451AQDQFRQ1?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Accuracy-Max (Cel) | 1Cel |
| Body Breadth | 2mm |
| Body Height | 0.75mm |
| Body Length or Diameter | 2mm |
| Housing | PLASTIC |
| JESD-609 Code | e4 |
| Mounting Feature | SURFACE MOUNT |
| Number of Bits | 12 |
| Operating Current-Max | 0.04mA |
| Output Interface Type | 2-WIRE INTERFACE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape/Style | SQUARE |
| Screening Level | AEC-Q100 |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 1.7V |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Termination Type | SOLDER |
| ## TMP451AQDQFRQ1 Alternates Showing results | Image |
| Package | WSON-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TMP451AQDQFRQ1 datasheet?
TMP451AQDQFRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TMP451AQDQFRQ1?
Compatible alternatives and drop-in replacements for TMP451AQDQFRQ1:
suggested
suggested
suggested
suggested
suggested
Serial Switch/Digital Sensor, 12 Bit(s), 1Cel, Rectangular, 8 Pin, Surface Mount
Frequently Asked Questions
What are the key specifications of the TMP451AQDQFRQ1 temperature sensor?
The TMP451AQDQFRQ1 is a 12-bit resolution digital temperature sensor with a maximum accuracy of ±1°C. It communicates over a 2-wire SMBus/I2C interface and is AEC-Q100 automotive-qualified, making it suitable for accurate thermal management in automotive and industrial systems operating across wide temperature ranges.
What does the TMP451AQDQFRQ1 measure and how does remote sensing work?
The TMP451AQDQFRQ1 measures both local (on-chip) temperature and remote temperature via an external diode-connected NPN transistor or the built-in thermal diode of a processor or FPGA. The remote sensing feature allows the device to accurately measure the junction temperature of a CPU, GPU, or FPGA die, which is critical for thermal throttling and cooling control in high-performance computing and automotive systems.
What package does the TMP451AQDQFRQ1 come in?
The TMP451AQDQFRQ1 is housed in an 8-pin WSON (Very Very Thin Small Outline No-Lead) package measuring 2mm x 2mm x 0.75mm. This ultra-compact surface-mount package is ideal for space-constrained automotive modules, ADAS compute boards, and infotainment units where PCB area and height clearance are at a premium.
Is the TMP451AQDQFRQ1 AEC-Q100 qualified for automotive use?
Yes, the TMP451AQDQFRQ1 carries AEC-Q100 automotive qualification (indicated by the 'Q' in the part number). It meets the stringent reliability testing requirements of the Automotive Electronics Council standard, making it approved for use in passenger vehicle systems including infotainment, ADAS, body electronics, and powertrain control modules.
What interface does the TMP451AQDQFRQ1 use and how does it connect to a host processor?
The TMP451AQDQFRQ1 uses a 2-wire SMBus/I2C-compatible serial interface for communication with a host microcontroller or SoC. It supports standard SMBus protocols including Alert Response Address (ARA) for interrupt-driven thermal event handling, simplifying integration into system management controllers and thermal monitoring software in automotive and industrial platforms.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.3564 | $135.64 |
| 230+ | $0.8825 | $202.97 |
| 295+ | $0.8531 | $251.66 |
| 395+ | $0.7648 | $302.10 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit