DKF503B5

Series:	DKF503
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance in Ohms @ 25°C:	50k
Resistance Tolerance:	±5%
B Value Tolerance:	±1%
B0/50:	--
B25/50:	--
B25/75:	--
B25/85:	3960K
B25/100:	--
Operating Temperature:	-40°C ~ 250°C
Length - Lead Wire:	1.06" (27.00mm)
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial

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DKF503B5 is a type of thermistor which falls under the temperature sensors category. It is especially designed to detect the changes in temperature as the temperature variations in any environment changes it senses them and reports it. This thermistor has been designed using a negative temperature coefficient design that gives a steep change in resistance with respect to temperature. This thermal sensor is suitable for use in industries such as HVAC systems, fabric calenders, grain dryers, heating elements, and medical equipment.The working principle of DKF503B5 is based on the change in resistance in response to a change in temperature. This thermistor comprises of a bead-like element that is made of a ceramic material. This material has its own resistivity which changes as the temperature changes. In simpler words, the temperature causes the ceramic in the bead-like element to either expand and contract. This expansion or contraction of the ceramic material causes the resistance of the thermistor to change with respect to the temperature variations.The DKF503B5 thermistors are designed to operate in a wide temperature range from -40℃ to 200℃ so it can accurately detect temperature variations. It is capable of detecting temperature changes in a wide dynamic range with a response time of 0.4sec to 8 sec depending on the application conditions. The nominal resistance of the thermistor at 25℃ is related to its temperature coefficient. The power dissipation of the thermistor is also very low and it can be up to 90mW when operated at 70℃.The DKF503B5 can be used for a wide variety of applications and it is suitable for all environmental conditions. It can be used in HVAC systems for temperature control in residential and commercial centers. It can also be used to monitor the temperature in fabric calenders, ovens, and other industrial applications. Furthermore, it can be used in the medical field for body temperature monitoring, infrared therapy, and smart bandage applications.In conclusion, the DKF503B5 is an NTC thermistor which is capable of detecting temperature variations by its self-heating effect. It features a wide operating temperature range of up to 200℃ and it is suitable for a wide range of applications such as HVAC systems, fabric calenders, grain dryers, and medical equipment. It has a fast response time of 0.4 to 8 sec and requires very low power dissipation, making it an ideal choice for temperature sensing applications.

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