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Product Description
70J 0.4W Metal Oxide Varistor MOV 10D471K For Line-Line , Surge Protection
Varistor
Quick Detail:
ITEM
VALUE
Description
Metal Oxide Varistor 10D471K
Max. Vm(ac)
300V
Max. Vm(dc)
385V
Energy (2ms)(J)
70
Rated Watt.(W)
0.4W
Max. Clamping V/A
775V
Varistor Volt.(VlmA)
470Vdc
Weight
1.35g/pc
• Wide voltage range selection - from 14 VRMS to 680 VRMS.This allows easy selection of the correct
component for the specific application.
• High energy absorption capability with respect to size of component.
• Response time of less than 20 ns, clamping the transient the instant it occurs.
• Low stand-by power - virtually no current is used in the stand-by condition.
• Low capacitance values, making the varistors suitable for the protection of digital switching
circuitry.
• High body insulation - an ochre coating provides protection up to 2500 V, preventing short circuits
to
adjacent components or tracks.
• Available on tape with accurately defined dimensional tolerances, making the varistors ideal for
automatic
insertion.
• Approved to UL 1449 edition 3 (file number: E332800) and manufactured using UL approved flame
retardant materials.
• Completely non flammable, in accordance with IEC, even under severe loading conditions.
• Non porous lacquer making the varistors safe for use in humid or toxic environments. The lacquer is also
resistant to cleaning solvents in accordance with IEC 60068-2-45.
Description:
Varistors provide reliable and economical protection against high voltage transients and surges which may
be produced,for example, by lightning, switching or electrical noise on
AC or DC power lines. They have the advantage over transient suppressor diodes in as much as they can absorb much higher transient energies and can suppress positive and negative transients.When a transient occurs, the varistor resistance changes from a very
high stand-by value to a very low conducting value. The transient is thus absorbed and
clamped to a safe level, protecting sensitive circuit
components.Varistors are manufactured from a non-homogeneous material, giving a rectifying action at the contact points of two particles. Many series and parallel connections determine the voltage rating and the current capability of the varistor
Applications:
Varistors may be used in many applications, including:
• Computers
• Timers
• Amplifiers
• Oscilloscopes
• Medical analysis equipment
• Street lighting
• Tuners
• Televisions
• Controllers
• Industrial power plants
• Telecommunications
• Automotive
• Gas and petrol appliances
• Electronic home appliances
• Relays
• Broadcasting
• Traffic facilities
• Electromagnetic valves
• Railway distribution/vehicles
• Agriculture
• Power supplies
• Line ground (earth protection)
• Microwave ovens
• Toys, etc.