The HSP series from Ohmite is an axial terminated precision wirewound resistor. The HSP series is extremely stable with a temperature coefficient to 3ppm. This stability is obtained using a hermetically sealed design. This design can be either empty or filled with oil. The HSP is offered in 9 power ratings up to 1.5 watts and all sizes carry a low thermal EMF as well as low voltage coefficients. For extreme precision and stability look no further than the Ohmite HSP series.