Radial Leaded Epoxy Resin Coated NTC Thermistor Temperature Sensor, 4.7K ohm, Beta B(25/50):3950K, 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: 4700 ohm+/-2%
- Beta Value B(25/50): 3950K+/-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 | 139.4303 KΩ | 20C | 5.8680 KΩ | 80C | 0.5849 KΩ |
| -35C | 102.5132 KΩ | 25C | 4.7000 KΩ | 85C | 0.4990 KΩ |
| -30C | 76.7813 KΩ | 30C | 3.7943 KΩ | 90C | 0.4278 KΩ |
| -25C | 58.1606 KΩ | 35C | 3.0757 KΩ | 95C | 0.3683 KΩ |
| -20C | 44.3531 KΩ | 40C | 2.5046 KΩ | 100C | 0.3185 KΩ |
| -15C | 33.9643 KΩ | 45C | 2.0499 KΩ | 105C | 0.2765 KΩ |
| -10C | 26.0869 KΩ | 50C | 1.6865 KΩ | 110C | 0.2409 KΩ |
| -5C | 20.0937 KΩ | 55C | 1.3950 KΩ | 115C | 0.2107 KΩ |
| 0C | 15.5300 KΩ | 60C | 1.1601 KΩ | 120C | 0.1849 KΩ |
| 5C | 12.0556 KΩ | 65C | 0.9700 KΩ | 125C | 0.1628 KΩ |
| 10C | 9.4117 KΩ | 70C | 0.8153 KΩ | ||
| 15C | 7.3998 KΩ | 75C | 0.6888 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 4.7KΩ B3950 Application
NTC 4.7KΩ B3950 Electric Data
Resistance vs. Temperature RT Data
NTC 4.7KΩ B3950 Mechanical Test
NTC 4.7KΩ B3950 Reliability Data
NTC 4.7KΩ B3950 Application
NTC 4.7KΩ B3950 Electric Data
Resistance vs. Temperature RT Data
NTC 4.7KΩ B3950 Mechanical Test
NTC 4.7KΩ B3950 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
