Axial Leaded Glass Encapsulated NTC Thermistor for Temperature Sensing, Measurement, Detection, Indicator, Monitoring, Gauging, Control, and Compensation.
Axial Leaded Glass Encapsulated NTC Thermistor Description
AMF58 series NTC thermistor in glass encapsulated package (diode outline), with axial tinned Dumet ( Copper-Clad Ni-Fe) Wire. Widely applied in temperature measurement, detection, indicator, monitoring, gauging, control, calibration and compensation, etc.
Axial Leaded Glass Encapsulated NTC Thermistor dimension (Unit: mm)
Axial Glass Encapsulated NTC thermistor Features
¡¤Operation up to 300¡æ with excellent stability.
¡¤Nominal resistance @25C can be from 2k¦¸¡ª5000 k¦¸.
¡¤Tight tolerance on resistance and B value.
¡¤Glass body provides hermetic seal & voltage insulation, can operate in high temperature and
moisture environment.
¡¤Small dimension, solid, convenient for automatic installation.
¡¤Fast heat induction, high sensitivity.
Axial Glass Encapsulated NTC thermistor Application Examples:
In household electronics temperature measurement, detection and control: such as air-conditioners, micro-wave ovens, electric fans, and electric heaters, electric cookers, induction cooker, hair driers, etc.
Temperature detection and compensation of automatic office equipment, such as copiers and printers.
In heating and air conditioning (HVAC): in heating cost distributors, for room temperature monitoring, in under-flooring heating and gas boilers, for determining exhaust gas or burner temperature, outdoor temperature sensor.
Industrial electronics: for temperature stabilization of laser diodes and photo-elements, for temperature compensation in copper coils or reference point compensation of thermo-elements, etc. Also for temperature measurement and compensation of meters, instruments, integrated circuits, quartz crystal oscillators and thermocouples.
In telecommunication: for temperature measurement, compensation and control and protection of mobile phones, battery pack and battery charger, etc.
Glass encapsulated package NTC thermistor can also be used in temperature measurement, monitoring, detection and control of medical equipment, food processing equipment, climate, etc.
AMWEI Axial Glass Encapsulated NTC thermistor Data Sheet
| Part number |
Resistance
@ 25¡æ
R25 |
Beta value
(K) |
Dissipation coefficient (mW/¡æ) |
Thermal time constant (S) |
Operating temperature (¡æ) |
Rated Power
(mW) |
Resistance
£¨K¦¸£© |
Tolerance
£¨%£© |
| AMF58-202¡õ3600 |
2 |
¡À1
¡À2
¡À3
¡À5 |
3600 |
¡Ý2.0
in still air |
¡Ü10
in still air |
-45~+250 |
¡Ü50 |
| AMF58-103¡õ3380 |
10 |
3380 |
| AMF58-103¡õ3950 |
10 |
3950 |
| AMF58-203¡õ3950 |
20 |
3950 |
| AMF58-223¡õ3950 |
22 |
3950 |
| AMF58-473¡õ3950 |
47 |
3950 |
| AMF58-503¡õ3950 |
50 |
3950 |
| AMF58-98.63k¡õ4016 |
98.63 |
4016 |
-30~+300 |
| AMF58-104¡õ3930 |
100 |
3930 |
| AMF58-104¡õ3950 |
100 |
3950 |
| AMF58-104¡õ3990 |
100 |
3990 |
| AMF58-104¡õ4016 |
100 |
4016 |
| AMF58-204¡õ3899 |
200 |
3899 |
| AMF58-204¡õ4200 |
200 |
4200 |
| AMF58-504¡õ4250 |
500 |
4250 |
| AMF58-1.388M¡õ4500 |
1388 |
4500 |
| AMF58-3.78M¡õ4700 |
3780 |
4700 |
Notes£º¡õ in the part number for filling in resistance tolerance.
Alternative rating can be made upon customer specific requirements.
Axial Leaded Glass Encapsulated NTC thermistor Reliability Data
| Test |
Standard |
Test Conditions |
¦¤R25/R25 (typical) |
Remarks |
| Low temeprature storage |
IEC 60068-2-1 |
Storage at low category temperature: -30 oC, Time: 1000hours |
¡Ü2% |
No visible damage |
| Storage in dry heat |
IEC 60068-2-2 |
Storage at upper category temperature: 200 oC, Time: 1000hours |
¡Ü2% |
No visible damage |
| Storage in damp heat, steady state (Humidity test) |
IEC 60068-2-3 |
Temperature: 40oC,
Humidity:90%-95% RH,
Duration:1000 hours |
¡Ü2% |
No visible damage |
| Temperature cycling |
IEC 60068-2-14 |
1. -30C/30 minutes
2. 80C/5minutes
3. 200C/30 minutes
4. 80C/5minutes.
Number of cycles: 5 Cycles |
¡Ü2% |
No visible damage |
Axial Leaded Glass Encapsulated NTC thermistor Mechanical Test
| Test |
Standard |
Test Conditions and methods |
Requirements |
| Soldering & Solderability |
IEC60068-2-20
Test Ta |
Temperature: 230¡À5 ¡æ£¬
2-2.5mm away from ceramic body£¬On: 2¡À0.5Seconds. |
The terminations shall be evenly tinned |
| Resistant to soldering heat |
IEC60068-2-20
Test Tb |
Temperature: 260¡À5¡æ,
2-2.5mm away from ceramic body£¬On£º10¡À1 Seconds. |
No visible damage,
¦¤R25/R25¡Ü2% |
| Lead wire tensile |
IEC60068-2-21
Test U |
Test Ua: Force 10N, On 10S;
Test Ub: Bending 90C, Force 5N, Twice. |
No break off,
¦¤R25/R25¡Ü2% |
Axial Leaded Glass Encapsulated NTC thermistor Application Precaution
¡¤Minimum lead wire length tailored to shall be ¡Ý8mm.
¡¤In lead wire bending, bending point shall be more than 2mm away from glass body part.
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