Radial Leaded Epoxy Resin Coated NTC Thermistor  Temperature Sensor, 2K ohm, Beta 3470K, Operting temperature -40C to +125C.

AMWEI Product Number: AMF52-202F3470

Appearance and Dimension

Radial Resin NTC Thermistor Temperature Sensor

Unit: mm

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: 2K ohm+/-1%
  • Beta Value B(25/50): 3470K+/-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 2K Ohm 3470K Resistance vs. Temperature RT Data

(K Ohm)
(K Ohm)
(K Ohm)
-40C 33.9626 KΩ 20C 2.4289 KΩ 80C 0.3175 KΩ
-35C 26.1098 KΩ 25C 2.0000 KΩ 85C 0.2752 KΩ
-30C 20.2004 KΩ 30C 1.6513 KΩ 90C 0.2394 KΩ
-25C 15.8016 KΩ 35C 1.3689 KΩ 95C 0.2090 KΩ
-20C 12.5094 KΩ 40C 1.1412 KΩ 100C 0.1830 KΩ
-15C 10.0111 KΩ 45C 0.9586 KΩ 105C 0.1607 KΩ
-10C 8.0827 KΩ 50C 0.8128 KΩ 110C 0.1416 KΩ
-5C 6.5685 KΩ 55C 0.6877 KΩ 115C 0.1251 KΩ
0C 5.3619 KΩ 60C 0.5843 KΩ 120C 0.1108 KΩ
5C 4.3893KΩ 65C 0.4986 KΩ 125C 0.0984 KΩ
10C 3.5992 KΩ 70C 0.4273 KΩ
15C 2.9549 KΩ 75C 0.3676 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,
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,

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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