MF58
MF51
PRECISION GLASS ENCAPSULATED
NTC THERMISTORS (MF58 & MF51)
MF58
Glass Shell Precision NTC Thermistors
The MF58 is a NTC thermistor which is manufactured
using a combination of ceramic and semiconductor
techniques. It is equipped with tinned axial leads and
then wrapped with purified glass.
Applications
Dimensions (mm)
Temperature compensation and detection for:
• Household appliances (air conditioners, micrwave
ovens, electric fans, electric heaters etc.)
• Office equipment (copiers, printers etc.)
• Industrial, medical, environmental, weather and
food processing equipment
• Liquid level detection and flow rate measurement
• Mobile phone battery
• Apparatus coils, integrated circuits, quartz crystal
oscillators and thermocouples.
Features
• Good stability and repeatability
• High reliability
• Wide range of resistance: 0.1~1000KΩ
• Tight tolerance on resistance and Beta values
• Usable in high-temperature and high-moisture
environments
• Small, light, strong package,
• Suitable for automatic insertion on thru-hole PCBs
• Rapid response
• High sensitivity
Specifications
Main Techno-Parameter
• Zero power resistance range (R25): 0.1~1000KΩ
• Available tolerances of R25:
F=±1% G=±2% H=±3% J=±5% K=±10%
• B value (B25/50°C) range: 3100~4500K
• Available tolerances of B value: ±0.5%, ±1%, ±2%
• Dissipation factor: ≥2mW/°C (In Still Air)
• Thermal time constant: ≤20S (In Still Air)
• Operating temperature range: -55°C ~ +200°C
• Rated Power: ≤50mW
MF51-B
Precision Glass
Encapsulated NTC Thermistor
for Temperature Measurement
The MF51 NTC thermistor is a small chip thermistor
encased in glass with bare radial copper leads.
The chip is made from a new material using new
techniques which provide benefits such as high
precision, fast response, reliable stability, no aging
effect and improved moisture resistance.
Applications
Dimensions (mm)
It can be used in applications such as refrigeration,
HVAC, heating equipment, electronic thermostats,
liquid level sensing, automotive electronics, electronic dashboards, etc.
Specifications
The fourth pane shows the Beta value (B25/50C)
The third pane shows the tolerance code of rated resistance.
The second pane shows the rated resistance at 25C (R25).
The first pane holds the dimensional code.
Type high precision temp. measurement chip in glass NTC thermisor
Note: Specifications can change without notice.
MF51 Continued >
MF51-B Physical Characteristics
Model
Dissi. Coef
(mW/ºC)
Thermal Time
Constant (S)
In still air
In still air
≥ 1.0
≤ 12
MF51-B
Model
B Value
(25/50ºC)
Rated Resistance R25
KΩ
MF51B _ _3380
2 - 10
MF51B _ _3950
10 - 50
MF51B _ _3950
50 -100
MF51B _ _4150
100 - 350
Tolerance
± 1%
± 2%
± 3%
± 5%
K
Tolerance
3380
3950
3950
4150
*
± 2%
± 3%
Operating
Temp.
(ºC)
-50ºC–260ºC
* If the tolerance of R25 is ±1%, the tolerance of B25/50 = ±1%.
If the tolerance of R25 is ±2% or greater, the tolerance of B25/50 = ±2%.
8415 Mountain Sights Avenue • Montreal (Quebec), H4P 2B8, Canada
Tel: (514) 739-3274 • 1-800-561-7207 • Fax: (514) 739-2902 • E-mail: sales@cantherm.com
Website: www.cantherm.com | Division of Microtherm
2011/Jan MF51/MF58
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