Radial Leaded Epoxy Resin Coated NTC Thermistor Temperature Sensor, 2252 ohm, Beta B(25/50):3935K, Temperature -40C to +125C.
Unit:mm
Temperature sensing, control and compensation. E.g. HVAC air conditioner, refrigerator, deep freezer, inlet air temperature sensing thermistors, ECT in automotive applications, sensor elements in industrial and commercial applications, heating systems and industrial systems, medical equipment, battery pack and battery charger etc.
- Resistance at 25C R25: 2252 ohm+/-1%
- Beta Value B(25/50): 3935K+/-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 | 77.2359 KΩ | 20C | 2.8130 KΩ | 80C | 0.2851 KΩ |
| -35C | 55.2134 KΩ | 25C | 2.2520 KΩ | 85C | 0.2429 KΩ |
| -30C | 40.0948 KΩ | 30C | 1.8080 KΩ | 90C | 0.2077 KΩ |
| -25C | 29.5013 KΩ | 35C | 1.4646 KΩ | 95C | 0.1783 KΩ |
| -20C | 21.9533 KΩ | 40C | 1.1955 KΩ | 100C | 0.1537 KΩ |
| -15C | 16.5002 KΩ | 45C | 0.9823 KΩ | 105C | 0.1331 KΩ |
| -10C | 12.5144 KΩ | 50C | 0.8119 KΩ | 110C | 0.1156 KΩ |
| -5C | 9.5715 KΩ | 55C | 0.6745 KΩ | 115C | 0.1008 KΩ |
| 0C | 7.3794 KΩ | 60C | 0.5630 KΩ | 120C | 0.0882 KΩ |
| 5C | 5.7335 KΩ | 65C | 0.4720 KΩ | 125C | 0.0776 KΩ |
| 10C | 4.4885 KΩ | 70C | 0.3974 KΩ | ||
| 15C | 3.5402 KΩ | 75C | 0.3359 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 |
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Content Headline
Appearance & Dimension
NTC 2252Ω B3935 Application
NTC 2252Ω B3935 Electric Data
Resistance vs. Temperature RT Data
NTC 2252Ω B3935 Mechanical Test
NTC 2252Ω B3935 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
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