WIREWOUND RESISTORS SILICONE COATED 2 W TO 15 W
Easy replacement of vitreous enamel resistors with no cost increase and no performance loss. The whole assembly is coated with multi-layer silicone coating to give maximum wire protection form -55°C to +350°C.
Performance improvement is obtained by close tolerance, very low temperature coefficient and excellent stability in operation under severe environmental conditions.
High level reliability due to ceramic core chemically inert and centerless ground for uniformity, selected wire element and completely welded construction terminal to terminal.
- Ohmic values
E24 Series. For out of range or not standard ohmic values, consult ATE Technical Dept.
Standard 5%. Available on request up to 1% (for values >R047).
- Temperature coefficient
Typical values: ±100 to ±30 ppm from R10 to Rmax Consult factory for special applications
- Dielectric strength
500 Vdc da 2CS a 6CS
700 Vdc da 7CS a 12CS
- Insulation resistance
1000 MOhm minimo
100 MOhm dopo le prove di umidità
5 secondi a 10 volte la potenza nominale
5 secondi a 5 volte la potenza nominale per i tipi 2CS e 3CS
- Non inductive
Models of equivalent physical and electrical specifications are also available with non inductive Ayrton-Perry winding
- Terminal strength
10 lb. pull test.
Continuous, satisfactory coverage when tested in accordance to MIL-PRF-26 H.
Ceramic steatite or alumina centerless ground
- Resistive element
Copper-nickel alloy or nickel-chrome alloy with specific temperature coefficient
- End caps
Special high temperature silicone
- Standard terminals
LF tinned copper or LF tinned copperweld
Point of measure: L + 20mm
These resistors can be used in a temperature range form -55°C to +350°C To use these components in applications with working temp. higher +25°C You have to make a power reduction with linear derating from nominal power to zero at 350°C.