Features 
Very good ratio Power / Volume
Easy mounting and wiring with significant cost advantages.
Non inductive performance for high frequency applications.
One models for power applications up to 500W.
Suited to ULV94-V0 application.
Electrical Specifications
– Power rating:
250W (heatsink at 100°C)
– Resistance range:
From 1R0 to 1MOhm, E12 series
– Tolerance
Standard 10%, up to 1% on request
– Temperature coefficient
±100 ppm/°C
– Max Work. Voltage
5000 Vac
-Work Temp. Range
From -55°C to +155°C
– Dielectric Strength
7000 Vac (12000 Vac x PR254T)
– Insulation resistance
> 105 MOhm a 500V
– Creep distance
42 mm (65 mm x PR254T)
– Air gap distance
16 mm (29mm x PR254T)
– Partial discharge
< 10 pC @ 5000 Vac
– Self inductance:
80 nH
– Capacità parallela
40 pF
– Parallel capacitance
< 120 pF
– Overload
4 Pn x 10 s
– Thermal resistance:
0.15 °C/W
– Heatsink flatness:
0.05 mm Max
– Heatsink surface finish
6.3μm Max
– Thermal grease
Required
– Max torque for contacts
2 Nm (static)
– Max torque for mounting:
2 Nm (static)
– Weight:
125 g (155 g x PR254T)
– Options
Cable terminals PR254C / PR254TC
