As demand for compact, high-accuracy temperature sensors grows in IoT and automotive applications, the TN10-3V682JT NTC Thermistor from Mitsubishi Materials emerges as a top-tier solution. This 6.8kΩ surface-mount thermistor combines a miniature 0603 footprint with ±5% resistance tolerance and a wide operating range (-40°C to 125°C), making it ideal for space-constrained designs. Below, we analyze its technical specifications, compare alternatives, and provide actionable selection guidance to help engineers optimize thermal management systems.
Product Overview
The TN10-3V682JT is a negative temperature coefficient (NTC) thermistor in a 0603 (1608 metric) surface-mount package. Key attributes include:
Resistance: 6.8kΩ @ 25°C (±5%)
B Value: 3900K (B25/50, ±3% tolerance)
Temperature Range: -40°C to +125°C
Package Options: Tape & Reel (TR), Cut Tape (CT), Digi-Reel®
Figure 1: 0603 package dimensions (Source: Mitsubishi Materials datasheet)
Core Technical Parameters
| Parameter | Value | Standard |
|---|---|---|
| Resistance @25°C | 6.8kΩ ±5% | IEC 60539-1 |
| B25/50 Value | 3900K ±3% | JIS C2570-1 |
| Operating Temperature | -40°C to +125°C | Mitsubishi DS-1023E |
| Dissipation Constant | 1.8mW/°C (typical) | Mitsubishi test data |
Selection Guide
Follow this decision flowchart when choosing thermistors:
Define Requirements: Temperature range, accuracy, response time
Package Constraints: 0603 ideal for high-density PCBs
Resistance Value: 6.8kΩ balances sensitivity and power consumption
B Value: Higher B = steeper R/T curve (3900K offers good linearity)
Why choose TN10-3V682JT over alternatives?
Compared to Murata NXFT15XH103FA (10kΩ), this 6.8kΩ variant provides better signal-to-noise ratio in low-voltage circuits commonly found in battery-powered devices.
Typical Applications
Battery Management Systems: Temperature monitoring in Li-ion packs
Automotive Electronics: Cabin climate control sensors
Medical Devices: Wearable vital sign monitors
Industrial IoT: Equipment overheating protection
Figure 2: Typical voltage divider circuit for temperature measurement
Market Analysis
According to MarketsandMarkets™ (2023), the NTC thermistor market will grow at 6.2% CAGR through 2028, driven by:
Expansion of 5G infrastructure requiring thermal management
EV battery demand (60% of automotive NTC use)
Miniaturization trends favoring 0603/0402 packages
Frequently Asked Questions
Q1: What's the self-heating effect of this thermistor?
A: At 1.8mW/°C dissipation constant, keep current below 100µA for minimal error.
Q2: Can it withstand reflow soldering?
A: Yes, compatible with JEDEC J-STD-020 reflow profiles (peak 260°C).
Q3: How does humidity affect performance?
A: Epoxy coating provides moisture resistance per IEC 60068-2-78.
Q4: Are custom B values available?
A: Mitsubishi offers B25/85=4100K variants (contact [email protected]).
Q5: What's the typical response time?
A: 3-5 seconds in still air (faster with thermal paste).
Future Trends
Emerging developments impacting NTC selection:
Higher B Values: 4000K+ for improved resolution
Flexible Substrates: Stretchable thermistors for wearables
Digital Output: Integrated ADC thermistors gaining traction
Conclusion
The TN10-3V682JT delivers reliable temperature sensing in a compact 0603 package, with parameters optimized for modern electronics. For volume pricing or technical support, contact our team at [email protected].
