TMP6331DYAR Texas Instruments Integrated Circuit (Other) In Stock
TMP6331DYAR is a Texas Instruments 100 kΩ linear PTC thermistor with ±1% tolerance rated for -40°C to 150°C operation in a 2-pin SOT-5X3 (1.3x0.85x0.7 mm) surface-mount package. Its positive temperature coefficient and linear response simplify temperature sensing circuit design. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- TMP6331DYAR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0894(MOQ 250)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100 kΩ nominal resistance with ±1% tolerance and positive temperature coefficient providing linear resistance-temperature response for accurate analog temperature sensing
- Rated -40°C to 150°C operating range in a ultra-compact 1.3x0.85 mm SOT-5X3 surface-mount package for space-constrained PCB temperature monitoring
- Linear PTC characteristic eliminates complex linearization firmware, enabling direct ADC-based temperature measurement with minimal calibration in battery and industrial systems
Applications
The TMP6331DYAR is used in battery management systems, industrial sensors, and portable electronics where a compact surface-mount thermistor must sense temperatures from -40°C to 150°C with minimal circuit overhead. Its linear PTC response allows a simple resistor divider and ADC input to compute temperature without lookup tables or polynomial correction. The 1.3x0.85 mm footprint fits adjacent to power MOSFETs, Li-ion cells, or motor drivers for localized thermal monitoring on densely populated PCBs.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| Date Of Intro | 2020-06-13 |
| YTEOL | 15 |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 0.7mm |
| Package Length | 1.3mm |
| Package Style | SOT-5X3 |
| Package Width | 0.85mm |
| Packing Method | TR, 7 INCH |
| Resistance | 100000Ω |
| Resistor Type | PTC THERMISTOR |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | FLAT |
| Thermistor Application | TEMPERATURE SENSING |
| Tolerance | 1% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the TMP6331DYAR linear PTC characteristic simplify firmware compared to NTC thermistors in ADC-based temperature designs?
Unlike NTC thermistors that exhibit an exponential resistance-temperature curve requiring a Steinhart-Hart equation or multi-point lookup table, the TMP6331DYAR has a linear positive temperature coefficient. Over its -40°C to 150°C range, firmware needs only a single-slope linear equation to convert ADC counts to temperature, reducing both flash consumption and calibration effort while maintaining ±1% tolerance accuracy.
What physical dimensions and mounting style does the TMP6331DYAR offer, and why does that matter for thermal monitoring near power components?
The TMP6331DYAR measures 1.3 mm x 0.85 mm x 0.7 mm in the SOT-5X3 surface-mount package, comparable to an 0402 passive. This ultra-compact footprint allows placement within 2 mm to 3 mm of heat-generating components such as MOSFETs or inductors, providing localized thermal sensing that better reflects component junction temperature than a distant board-mounted thermistor.
For a battery charger design, at what resistance value does the TMP6331DYAR read at 25°C, and how does the ±1% tolerance affect charge cutoff accuracy?
The TMP6331DYAR has a nominal resistance of 100 kΩ at 25°C with ±1% tolerance, meaning actual resistance falls between 99 kΩ and 101 kΩ. In a resistor-divider thermistor circuit with a 100 kΩ reference resistor, this ±1% spread introduces approximately ±0.25°C error at 25°C, which is well within the ±5°C temperature accuracy required by most Li-ion charge termination specifications.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.1148 | $28.71 |
| 500+ | $0.1087 | $54.37 |
| 1000+ | $0.1037 | $103.73 |
| 15000+ | $0.0913 | $1369.65 |
| 21000+ | $0.0903 | $1896.93 |
| 30000+ | $0.0894 | $2681.40 |
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