FVR25W2.5KRK Datasheet, PDF (1/3 Pages) Token Electronics Industry Co., Ltd. – FVR Rheostat Variable Power Resistors

TOKEN FVR Rheostat Variable Power Resistors
Rheostat Variable
Power Resistors
C-shaped Wirewound Variable Resistors - FVR Series
Rheostat, Variable Resistors
Control The Speed of a Motor
Preview
Token’s Power Variable Resistor FVR Series is a C-shaped
ceramic rod and wound with copper or chromium-alloy wire
as a resistance element. Except for the slide contact surface,
the entire component is coated with a high-temperature,
non-flammable resin. After cooling and drying, insulation
is applied through a high-temperature process. Then, a
centered rotating adjuster component is installed, which
slides along the resistance element and varies the resistance
to the desired value.
Variable Resistors are often called potentiometers in books
and catalogues. Variable FVR may be used as a rheostat
with two connections (the wiper and just one end of the
track) or as a potentiometer with all three connections in use.
Applications :
● Motor controller also use FVR Series as rheostats or potentiometer to control the speed of a motor by
limiting the flow of current through them.
● They are used in many small appliances such as blenders, mixers, fans, and power tools.
● FVR Rheostats Series are also used as test instruments to provide an accurate resistance value.
● While FVR can be used to control electric ovens and cooktops, thermostats are preferred because they
have additional parts which automatically adjust the current flow to maintain a constant temperature.
Features :
● Standard resistance tolerance is K(±10%). Closer tolerances are available upon request.
● 3 Wattage Rating styles to choose: 25W, 50W, and 100W.
● Wide Max. Resistance range: 5Ω ~ 5KΩ.
The FVR Series is RoHS compliant and lead free. For non-standard technical requirements and custom special
applications, please contact us.
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