Description
ELECTRICAL SPECIFICATIONS
Ohmic values
Series E24. For out of range or not standard ohmic values, consult UPE Technical Department.
Tolerance
Standard 5%. Available on request up to 1%.
Temperature coefficient
30 ppm R > 20 Ohm
50 ppm 1 Ohm < R < 20 Ohm
100 ppm 0.1 Ohm < R < 1 Ohm
Dielectric strength
2500 Vac for RB25
Insulation resistance
10000 MOhm minimum
1000 MOhm after moisture test
Overload
5s at 5 times rated power
Non inductive
Models of equivalent physical and electrical specifications are also available with non inductive Ayrton-Perry winding
MECHANICAL SPECIFICATIONS
Terminal strength
10 lb. pull test; 3 Nm x RB100 and 4 Nm x RB250 max torque
Solderability
Satisfactory when tested in accordance with method 208 of MIL-STD-202. The use of high temperature solder is recommended when resistors work near the maximum specified ratings
MATERIALS
Core
Ceramic steatite or alumina centerless ground
Resistive Element
Copper-nickel alloy or nickel-chrome alloy with specific temperature coefficient
End caps
Stainless steel
Encapsulant
High temperature thermosetting compound
Housing
Aluminium with hard anodic finish
Standard terminals
Copperweld
DERATING
ATE RB resistors have and operative temperature range from -55C to +250C
Derating is required for reduced chassis area and for high ambient temperature
Manufacturer Part Number: RB25/6-1K3-J
Manufacturer: ATE Electronics
