0.25W Precision Wirewound Resistors UPW 25 Series
TE Connectivity UPW Series ultra high stability resistors specially wound to minimise inductance and sealed in epoxy resin. The UPW series is suitable for many applications where close tolerance and low temperature coefficient are advantageous, i.e. actuators, gain setting networks, comparators, strain gauge bridges, etc
Resistance tolerance
±0.1%
Power at 125°C
0.25W (UPW 25), 0.5W (UPW 50)
Derate to zero power
at 145°C
Limiting element voltage
300V (UPW 25), 400V (UPW 50)
Temp. coefficient, typ.
±3ppm/°C (0 → +85°C)
Temp. coefficient, max.
±5ppm/°C (-55 → 125°C)
Full load stability
No load stability
±25ppm / 10000 hours
Thermal e.m.f.
Operating Temperature
-55 → +145°C
Dimensions
Ø4.75 x 9.53 mm