HCV Series

 
CERAMIC ENCASED WIRE WOUND RESISTOR
FIRE RETARDANT
  • Very high degree of insulation
  • Low surface Temperature.
  • TCR as low as ± 100 ppm/°C available.
  • 7W to 20W
  • Fitted with heat sink mounting bracket.
Physical configuration


TYPE
POWER RATING at 70°C
DIMENSIONS (mm) 
RANGE 		 Wt Per PC (gms)
L1 L3 L4 H1 H2 H3 W1 W2 W3 d±0.1 MIN MAX
CV-7  7 60±1.5 5±0.5 7±1 2.1±0.15 11±1 9.5±1 10±1 2.1±0.15 10±1 0.8 R10 5K2 10.0
CV-10 10 67±1.5 5±0.5 7±1 2.1±0.15 11±1 9.5±1 10±1 2.1±0.15 10±1 0.8 R82 11K 13.3
CV-15 15 62.5±2 4.5±0.2 6.5±1 2.5±0.15 14±1 12.5±1.2 13±1.2 2.5±0.15 13±1 1.0 1R2 11K 22.1
CV-20 20 78±2 4.5±0.2 6.5±1 2.5±0.15 14±1 12.5±1.2 13±1.2 2.5±0.15 13±1 1.0 1R2 13K 26.4

 
Electrical and Environmental Characteristics / Data  
Test
Performance Requirements
Resistance tolerance ±10% [K]; ±5% [J]
[< 1ohms±0.05ohms]
Rated ambient temperature [ see derating curve] upto 10W, full power dissipation at 70°C
15W/20W, full power dissipation at 25°C
Di-electric withstanding voltage Max. D R±[2%+0.05ohms]
Temperature co-efficient ± 200 ppm/°C [> 10 ohms]
± 450 ppm/°C [< 10 ohms]
± 600 ppm/°C [< 1 ohms]
Short time overload Max DR±[ 2%+0.05 ohms]
Moisture Resistance Max DR± [5%+0.05 ohms]
Load life Max DR± [5%+0.05 ohms]
Ambient operating temperature range -25°C to +155°C
Flame Test Specifications laid down by UL have been met satisfactorily
NOTE:
Due to recent technological advances, the ceramic cases used may be steatite ceramic/corderite ceramic/high alumina ceramic depending on the nature of application. Hence the ceramic cases may be off-white/variations of brown and variations of grey; colours which are inherent to these ceramic materials.
 
Eurocap International Limited.   138 High Street,  Cheshunt,  Herts,  EN8 0AP  England.
Tel    +44 (0)1992 625407      Fax   +44 (0)1992 625420
Email eurocap@dial.pipex.com