4.7k Ohm Bead Thermistor

Code: FX21X

Product details

4.7k Ohm Bead Thermistor

Bead type thermistor for general applications including temperature measurement and compensation.
Tolerance: ±5%
Power (max): 250mW
Dissipation factor: 7mW/°C
Response time: 1.2 secs
Thermal time constant: 11 secs
Temperature range: -40°C to +125°C
reducing to 0° to 55°C
at max power
R at 100°C R at 0°C
R at 25°C B(°K) (approx) (approx)
4k7 3977 318.4Ω 15.28kΩ
Colour code
R at 25°C Band 1 Band 2 Band 3 Band 4
4k7 Yellow Violet Red Gold

Hi I hope you can help me. The thermistor in my old Iomega UltraMax Desktop 2-bay caddy has died, which thermistor would you replace it with? The current one is all green apart from the tip which is white. Thanks for your help.
Asked by: Anonymous
Unfortunately we would be unable to advise on this.
Answered by: DH
Date published: 2015-07-17

What is the temperature measurment range of the FX42V ?
Asked by: Anonymous
-40c to +125c
Answered by: LC
Date published: 2015-07-17

Can you explain what the 7 means in the resistance 4K7? Many thanks
Asked by: Anonymous
4700 ohms is the overall resistance (4.7K ohms)
Answered by: JK
Date published: 2017-01-26

Are these NTC or PTC?
Asked by: Anonymous
these are negative temperature coefficient
Answered by: SG
Date published: 2015-07-17

Hi, what is the diameter of the bead? cheers.
Asked by: Anonymous
Approx 3.8mm
Answered by: JK
Date published: 2015-07-17
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Bulk Prices

Item code Item name Quantity Price
FX21X 4.7k Ohm Bead Thermistor (10+) £0.44
FX21X 4.7k Ohm Bead Thermistor (1+) £0.49

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