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TMP6331DYAR
Texas Instruments
IC POWER
6264 Pcs New Original In Stock
PTC Thermistor 100 kOhms SC-79, SOD-523
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TMP6331DYAR
Product Overview
10415212
DiGi Electronics Part Number
TMP6331DYAR-DGManufacturer
Texas Instruments
TMP6331DYAR
Description
IC POWERInventory
6264 Pcs New Original In Stock
PTC Thermistor 100 kOhms SC-79, SOD-523
Quantity
Minimum 1
Minimum 1
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TMP6331DYAR Technical Specifications
Category
Temperature Sensors, PTC Thermistors
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Resistance @ 25°C
100 kOhms
Resistance Tolerance
±1%
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
SC-79, SOD-523
Supplier Device Package
SOT-5X3
Datasheet & Documents
HTML Datasheet
TMP6331DYAR-DG
Environmental & Export Classification
RoHS Status
Not applicable
Moisture Sensitivity Level (MSL)
3 (168 Hours)
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-TMP6331DYARTR
296-TMP6331DYARCT
296-TMP6331DYARDKR
Standard Package
3,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
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SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
고품질 제품과 세심한 사후 지원이 인상적입니다.
грудня 02, 2025
Speedy shipping options allowed me to receive products sooner than I thought.
грудня 02, 2025
Their consistent product performance and honest prices make them a highly trusted brand.
грудня 02, 2025
Their customer service was outstanding—friendly, responsive, and professional.
грудня 02, 2025
The support after my purchase has exceeded my expectations.
грудня 02, 2025
The quality control processes at DiGi Electronics ensure all products meet high standards.
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Frequently Asked Questions (FAQ)
Can the TMP6331DYAR PTC thermistor be used as a direct replacement for a 10kΩ NTC thermistor like the Murata NCP15XH103J03RC in a battery temperature monitoring circuit?
No, the TMP6331DYAR is a 100 kΩ PTC thermistor with a positive temperature coefficient, meaning its resistance increases sharply above a certain temperature threshold, while the Murata NCP15XH103J03RC is a 10 kΩ NTC (negative temperature coefficient) device whose resistance decreases gradually with temperature. This fundamental difference in behavior makes them non-interchangeable in standard linear temperature sensing applications. Using the TMP6331DYAR in place of an NTC would result in incorrect readings and potential system malfunction. If overcurrent or overtemperature protection is the goal, the TMP6331DYAR may be suitable, but for analog temperature measurement, an NTC or digital sensor is required.
What are the reliability risks of using the TMP6331DYAR in high-humidity environments given its MSL 3 rating, and how should it be handled during PCB assembly?
The TMP6331DYAR has a Moisture Sensitivity Level (MSL) of 3, which allows it to be exposed to ambient conditions for up to 168 hours (7 days) before soldering without requiring dry baking. However, in high-humidity environments—especially during reflow—moisture absorption can lead to popcorning or delamination if not properly managed. To mitigate risk, store the TMP6331DYAR in a dry cabinet (<10% RH) after opening the sealed bag, and ensure the total floor life does not exceed 168 hours. If exposure exceeds this window, bake the components at 125°C for 24 hours per J-STD-033 guidelines before reflow to prevent moisture-induced damage.
How does the switching behavior of the TMP6331DYAR compare to a resettable PTC fuse like the Bourns MF-R010, and can it provide overcurrent protection in a 500mA power rail?
The TMP6331DYAR is a ceramic PTC thermistor designed primarily for temperature sensing or thermal protection, not current limiting. Unlike a resettable PTC fuse such as the Bourns MF-R010—which is engineered to trip at specific current thresholds and limit fault current—the TMP6331DYAR’s resistance change is gradual and temperature-driven, not current-driven. It will not respond quickly or predictably to overcurrent events. Using it for overcurrent protection on a 500mA rail is inappropriate and risky; instead, use a dedicated PTC resettable fuse rated for the application’s voltage, current, and trip characteristics.
Is the TMP6331DYAR suitable for surface-mount assembly on flexible PCBs or high-vibration automotive applications, considering its SC-79 (SOD-523) package?
The TMP6331DYAR in its SC-79 (SOD-523) package is a small, lightweight surface-mount component, but its suitability for flexible PCBs or high-vibration environments depends on solder joint integrity and mechanical anchoring. The tiny footprint increases susceptibility to cracking under repeated flexing or shock. For automotive or high-reliability applications, consider adding conformal coating to reinforce solder joints and avoid placing the TMP6331DYAR near board edges or high-stress zones. Alternatively, evaluate more robust packages like SOT-23 or through-hole thermistors if mechanical stress is a primary concern.
What design considerations should I account for when integrating the TMP6331DYAR into a compact IoT sensor node with limited PCB real estate and strict thermal management requirements?
When integrating the TMP6331DYAR into a space-constrained IoT node, leverage its small SC-79 package for minimal footprint, but be mindful of thermal coupling. Avoid placing heat-generating components (e.g., power regulators, RF modules) too close, as self-heating or ambient thermal gradients can skew readings. Use thermal relief pads and isolate the TMP6331DYAR with ground plane cutouts if necessary to improve thermal accuracy. Additionally, since it’s a passive analog sensor, ensure your ADC input has sufficient resolution to detect small resistance changes near the switching region. For best results, calibrate the system at multiple temperature points to account for hysteresis and non-linear response.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
TMP6331DYAR CAD Models
Texas Instruments TMP6331DYAR PCB symbols & footprints
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