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Home > Resistors > VITROHM CRF0414-253-4/8R2-5 RESISTOR 8.2 OHM FUSIBLE

VITROHM CRF0414-253-4/8R2-5 RESISTOR 8.2 OHM FUSIBLE

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Vitrohm - Vit Crf0414-253-4/8R2-5 8 .2 Ohm Fusible Res Resistor

VITROHM CRF0414-253-4/8R2-5 RESISTOR 8.2 OHM FUSIBLE

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VITROHM CRF0414-253-4/8R2-5 Resistor 8.2 OHM FUSIBLE RES

Features

• Fusible resistors are triggered instantly on contact with mains voltage (230Veff), without flame or explosion.
• The resistor wire is wound around a capped ceramic carrier and fused to the caps.
• In case of vaporisation of the wire, a special varnish absorbs the metal vapour and prevents arcing and consequent short circuit.
• The winding wire is dimensioned in such a way that, for all resistance values between 10R and 330R (100R for the 251-4 model), vaporisation occurs with mains voltage.
• The resistor elements are encased in a silicon varnish and, in the classic sense, are not electrically insulated.
• For resistance values under 10R as well as for other voltages, it has been ensured that the resistor is flame retardant.
• The triggering function, however, has to be tested on an individual basis.
Technical Specifications
   
Resistance Tolerance: ±5%
Power Rating (70°C):
CRF253-4_: 2,0W
CRF254-4_: 2,5W
Operating Voltage, Max.: (PxR)1/2
Thermal Resistance:
CRF253-4_: 85K/W
CRF254-4_: 65K/W
Insulation Resistance: Not Insulated
Insulation Voltage (1Min.): 75V
Temperature Coefficient: +120 ±50x10-6/K
Temperature Range: -55...+350°C
Climatic Category: 55/350/56
Failure Rate (Value Dependent): Approx. 10x10-9 /h
Terminal Tensile Strength: 50N
Solderability:1) 2,5s
Derating: Linear 70°C to 350°C (0W)
1) Solderglobule Test, IEC60068-2-20
Labelling
Manufacturer logo, series, resistance value, tolerance
Terms of Delivery
Minimum order quantity: 1 PKU = 10 pieces
Form of delivery: Taped

Additional Information

CRF0414-253-4/8R2-5
Click here to Download Datasheet I
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