PTMP6331DYAT Texas Instruments Integrated Circuit (Small Outline Diode Flat Lead) In Stock
PTMP6331DYAT is a precision 100 kΩ linear thermistor from Texas Instruments with ±1% resistance tolerance in a compact 0402 (1.2 mm x 0.8 mm) surface-mount package, rated for up to 0.4 mA operating current. It offers accurate, predictable temperature sensing for space-constrained PCB designs. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Diode Flat Lead
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- PTMP6331DYAT Datasheet PDF
- Category
- Integrated Circuit
- 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 PTMP6331DYAT?
- ±1% resistance tolerance at 25°C ensuring high-accuracy temperature measurement without individual calibration in production
- 100 kΩ nominal resistance at 25°C with linear output characteristic simplifying ADC interface and firmware temperature calculation
- Compact 0402 package measuring 1.2 mm x 0.8 mm enabling temperature sensing in the smallest IoT, wearable, and portable device PCB designs
- Low operating current rating of 0.4 mA maximum minimizing self-heating error for precise ambient temperature monitoring
What is PTMP6331DYAT used for?
The PTMP6331DYAT is designed for precision temperature sensing in IoT nodes, wearable health devices, and battery management systems where PCB space is constrained to 0402 component footprints. Its ±1% tolerance and linear characteristic allow direct connection to microcontroller ADC inputs without complex compensation firmware, making it suitable for environmental monitoring modules, HVAC controllers, and portable medical thermometers. The surface-mount plastic package is compatible with standard pick-and-place assembly processes, supporting high-volume automated manufacturing.
What are the specifications of PTMP6331DYAT?
| Date Of Intro | 2020-04-18 |
| YTEOL | 0 |
| Body Breadth | 0.8mm |
| Body Height | 0.77mm |
| Body Length or Diameter | 1.2mm |
| Housing | PLASTIC |
| Mounting Feature | SURFACE MOUNT |
| Operating Current-Max | 0.4mA |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape/Style | RECTANGULAR |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SINGLE TRIP POINT |
| Supply Voltage-Max | 5.5V |
| Surface Mount | YES |
| Temperature Coefficient | POSITIVE ppm/°C |
| Termination Type | SOLDER |
| Package | Small Outline Diode Flat Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the PTMP6331DYAT datasheet?
PTMP6331DYAT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTMP6331DYAT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does PTMP6331DYAT linear response simplify temperature calculation compared to standard NTC thermistors?
Unlike NTC thermistors that require Steinhart-Hart or Beta equation compensation due to their exponential resistance-temperature characteristic, PTMP6331DYAT provides a linear resistance change with temperature. This means a simple two-point linear interpolation in firmware is sufficient for temperature calculation, reducing software complexity by eliminating floating-point Steinhart-Hart computations and allowing 8-bit or 12-bit ADC readings to map directly to temperature values with errors below 1°C across typical ranges.
What self-heating error should be expected when biasing PTMP6331DYAT at its maximum 0.4 mA current?
At maximum operating current of 0.4 mA through a 100 kΩ thermistor, the self-heating power dissipation is P = I² × R = 0.16 mA² × 100 kΩ = 16 mW. This level of self-heating can introduce temperature measurement errors of several degrees Celsius depending on thermal resistance to ambient. Designers should bias the PTMP6331DYAT at 0.01 mA to 0.05 mA where self-heating is below 0.25 mW, limiting self-heating temperature rise to under 0.1°C in still air.
How does the 0402 package size of PTMP6331DYAT compare to 0603 thermistors for density-critical PCB layouts?
The PTMP6331DYAT 0402 package measures 1.2 mm x 0.8 mm with a body height of 0.77 mm, occupying approximately 40% less board area than a standard 0603 component measuring 1.6 mm x 0.8 mm. This size advantage allows placement in wearable PCB layouts where component spacing is below 0.5 mm, and enables temperature sensing directly adjacent to heat-generating components such as battery cells, power MOSFETs, or wireless transceiver ICs in IoT module designs.
For battery management applications, why is a ±1% tolerance thermistor like PTMP6331DYAT preferred over lower-accuracy types?
In lithium-ion battery management systems, temperature thresholds for charge termination, over-temperature protection, and cold-temperature derating are typically set within ±3°C accuracy bands. Using a ±1% tolerance thermistor like PTMP6331DYAT ensures that the thermistor resistance error at 25°C stays within ±1 kΩ on a 100 kΩ nominal value, contributing less than ±0.5°C of systematic temperature error, leaving the remaining error budget for ADC quantization and layout thermal gradients rather than component tolerance.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 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
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
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