Radial Leaded Epoxy Resin Coated NTC Thermistor  Temperature Sensor, 5K ohm, Beta B(25/50): 3950K,  Temperature -40C to +125C.

AMWEI Product Code: AMF52-502G3950

Appearance and Dimension

Unit:mm

Radial Resin NTC Thermistor Temperature Sensor

Radial  Leaded Epoxy Resin Coated  NTC Thermistor Application

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.

Radial Leaded Epoxy Resin Coated NTC Thermistor Electric Perfomance

  • Resistance at 25C R25: 5000 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.

NTC 5K Ohm 3950K Resistance vs. Temperature RT Data

Temperature
Centigrade
Resistance
(K Ohm)
Temperature
Centigrade
Resistance
(K Ohm)
Temperature
Centigrade
Resistance
(K Ohm)
-40C 148.330 KΩ 20C 6.243 KΩ 80C 0.622 KΩ
-35C 109.057 KΩ 25C 5.000 KΩ 85C 0.531 KΩ
-30C 81.682 KΩ 30C 4.037 KΩ 90C 0.455 KΩ
-25C 61.873 KΩ 35C 3.272 KΩ 95C 0.392 KΩ
-20C 47.184 KΩ 40C 2.665 KΩ 100C 0.339 KΩ
-15C 36.132 KΩ 45C 2.181 KΩ 105C 0.294 KΩ
-10C 27.752KΩ 50C 1.794 KΩ 110C 0.256 KΩ
-5C 21.376 KΩ 55C 1.484 KΩ 115C 0.224 KΩ
0C 16.521KΩ 60C 1.234 KΩ 120C 0.197 KΩ
5C 12.825KΩ 65C 1.032 KΩ 125C 0.173 KΩ
10C 10.012 KΩ 70C 0.867 KΩ
15C 7.872 KΩ 75C 0.733 KΩ

Radial Leaded Epoxy Resin Coated NTC Thermistor Mechanical Test

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%

Radial Leaded Epoxy Resin Coated NTC Thermistor Reliability Data

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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