Radial Leaded Epoxy Resin Coated NTC Thermistor Temperature Sensor, 4027 ohm, Beta B(25/85):3979K, 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: 40.27K ohm+/-2%
- Beta Value B(25/85): 3979K+/-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 | 1282.4698 KΩ | 20C | 50.2806 KΩ | 80C | 5.0664 KΩ |
| -35C | 932.0947 KΩ | 25C | 40.2700 KΩ | 85C | 4.3050 KΩ |
| -30C | 684.0718 KΩ | 30C | 32.4609 KΩ | 90C | 3.6737 KΩ |
| -25C | 507.2131 KΩ | 35C | 26.3293 KΩ | 95C | 3.1449 KΩ |
| -20C | 379.5959 KΩ | 40C | 21.4835 KΩ | 100C | 2.7002 KΩ |
| -15C | 286.8914 KΩ | 45C | 17.6296 KΩ | 105C | 2.3277 KΩ |
| -10C | 218.804 KΩ | 50C | 14.5456 KΩ | 110C | 2.0132 KΩ |
| -5C | 168.4057 KΩ | 55C | 12.0862 KΩ | 115C | 1.7466 KΩ |
| 0C | 130.683 KΩ | 60C | 10.0825 KΩ | 120C | 1.5195 KΩ |
| 5C | 101.8851 KΩ | 65C | 8.4424 KΩ | 125C | 1.3253 KΩ |
| 10C | 79.9700 KΩ | 70C | 7.0951 KΩ | ||
| 15C | 63.1971KΩ | 75C | 5.9845 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 40KΩ B3979 Application
NTC 40KΩ B3979 Electric Data
Resistance vs. Temperature RT Data
NTC 40KΩ B3979 Mechanical Test
NTC 40KΩ B3979 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
