Radial Leaded Epoxy Resin Coated NTC Thermistor Temperature Sensor, 2750 ohm, Beta B(25/85):3977K, Temperature -40C to +125C.
Unit: mm
Temperature sensing, control and compensation. E.g. inlet air temperature sensing thermistors or ECT in
automotive applications, sensor elements in industrial and commercial applications, heating systems and industrial
systems, medical equipment.
- Resistance at 25C R25: 2750 ohm+/-3%
- Beta Value B(25/85): 3977K+/-1%
- Optional R25 resistance tolerance, ±1%(F), ±2%(G), ±3%(H), or ±5%(J)
- Dissipation Factor: δ≥3mW/℃.
- Thermal Time Constant (in still air): ≤12 seconds.
- Rated Powerwatt (below 25C): ≤50mW
- Insulation resistance: room temperature, 500V, 60 Seconds, ≥100MΩ.
- Operating temperature range: -40 to +125C.
| Temperature Centigrade |
Resistance (K Ohm) |
Temperature Centigrade |
Resistance (K Ohm) |
Temperature Centigrade |
Resistance (K Ohm) |
|---|---|---|---|---|---|
| -40C | 94.316 KΩ | 20C | 3.435 KΩ | 80C | 0.348 KΩ |
| -35C | 67.423 KΩ | 25C | 2.750 KΩ | 85C | 0.297 KΩ |
| -30C | 48.961 KΩ | 30C | 2.208 KΩ | 90C | 0.254 KΩ |
| -25C | 36.025 KΩ | 35C | 1.789 KΩ | 95C | 0.218 KΩ |
| -20C | 26.808 KΩ | 40C | 1.460 KΩ | 100C | 0.188 KΩ |
| -15C | 20.149 KΩ | 45C | 1.200 KΩ | 105C | 0.162 KΩ |
| -10C | 15.282 KΩ | 50C | 0.991 KΩ | 110C | 0.141 KΩ |
| -5C | 11.688 KΩ | 55C | 0.824 KΩ | 115C | 0.123 KΩ |
| 0C | 9.011 KΩ | 60C | 0.688 KΩ | 120C | 0.108 KΩ |
| 5C | 7.001 KΩ | 65C | 0.576 KΩ | 125C | 0.095 KΩ |
| 10C | 5.481 KΩ | 70C | 0.485 KΩ | ||
| 15C | 4.323 KΩ | 75C | 0.410 KΩ |
| Test | Standard | Test Conditions and methods | Requirements |
|---|---|---|---|
| Soldering & Solderability | IEC60068-2-20 Test Ta |
Temperature: 230±5 ℃， 2-2.5mm away from ceramic body On: 2±0.5 Seconds. |
The terminations shall be evenly tinned |
| Resistant to soldering heat | IEC60068-2-20 Test Tb |
Temperature: 260±5℃, 2-2.5mm away from ceramic body On：10±1 Seconds. |
No visible damage, ΔR25/R25≤3% |
| Lead wire tensile | IEC60068-2-21 Test U |
Test Ua: Force 10N, On 10 Seconds; Test Ub: Bending 90C, Force 5N, Twice. |
No break off, ΔR25/R25≤3% |
| Test | Standard | Test Conditions | ΔR25/R25 (typical) | Remarks |
|---|---|---|---|---|
| Low temperature storage | IEC 60068-2-1 | Storage at low category temperature. Temperature: -40 oC Time: 1000hours | ≤3% | No visible damage |
| Storage in dry heat | IEC 60068-2-2 | Storage at upper category temperature. Temperature: 100 oC Time: 1000hours | ≤3% | No visible damage |
| Storage in damp heat, steady state (Humidity test) | IEC 60068-2-3 | Temperature: 40oC, Humidity:90%-95% RH, Duration:1000 hours |
≤3% | No visible damage |
| Rapid temperature cycling | IEC 60068-2-14 | 1. -40C/30 minutes 2. 30C/5minutes 3. 100C/30 minutes 4. 30C/5minutes. Number of cycles: 5 Cycles |
≤3% | No visible damage |
Other Related AMWEI NTC thermistors Products for Temperature Sensing
Content Headline
Appearance & Dimension
NTC 2750Ω B3977 Application
NTC 2750Ω B3977 Electric Data
Resistance vs. Temperature RT Data
NTC 2750Ω B3977 Mechanical Test
NTC 2750Ω B3977 Reliability Data
NTC 2750Ω B3977 Application
NTC 2750Ω B3977 Electric Data
Resistance vs. Temperature RT Data
NTC 2750Ω B3977 Mechanical Test
NTC 2750Ω B3977 Reliability Data
Technical Knowledge
NTC Thermistor Glossary and Definition
How NTC thermistor beta value is calculated?
NTC Thermistor Manufacturing Process and Quality Control
Applications Articles
NTC thermistor for temperature measurement and control selecting reference information.
Charging Control with AMWEI NTC Thermistor
Reliable limiting of current surges by AMWEI NTC and PTC thermistor
How to Select NTC Thermistor for Inrush Current Limiting?
How to Select Packaged Thermistor Temperature Sensor Probe Assembly ? 6 Steps
