Manufacturers

fusible wirewound resistors, 2 W

* by Vitrohm
* CRF253-4
* taped
* 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 v...

fusible wirewound resistors, 2 W

* by Vitrohm
* CRF253-4
* taped
* 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 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
* resistance tolerance: ±5%
* power rating (70°C): 2W
* operating voltage, max.: (PxR)1/2
* thermal resistance: 85K/W
* insulation resistance: not insulated
* insulation voltage (1 min.): 75V
* temperature coefficient: +120 ±50x10-6/K
* temperature range: -55 to +350°C
* climatic category: 55/350/56
* failure rate (value dependent) approx. 10x10-9/h
* terminal tensile strenght: 50N
* solderability: 2.5s
* derating: linear 70°C to 350°C (0W)


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Data Sheet
Showing 1 - 4 of 4 products
  • Product Stock Unit price Volume discounts
  • Vitrohm
    CRF253-4 5% 8,2 R
    0,245 €
    35354 CRF253-4 5% 8,2 R CRF250JT-73-8R2YY CRF250JT-73-8R2YY
    0,245 €
    Stock: 3970
  • Vitrohm
    CRF253-4 5% 10 R
    0,245 €
    35350 CRF253-4 5% 10 R CRF250JT-73-10RYY CRF250JT-73-10RYY
    0,245 €
    Stock: 4010
  • Vitrohm
    CRF253-4 5% 100 R
    0,269 €
    35349 CRF253-4 5% 100 R CRF250JT-73-100RYY CRF250JT-73-100RYY
    0,269 €
    Stock: 6490
  • Vitrohm
    CRF253-4 5% 330 R
    0,269 €
    35353 CRF253-4 5% 330 R CRF250JT-73-330RYY CRF250JT-73-330RYY
    0,269 €
    Stock: 5490
Showing 1 - 4 of 4 products