The PHR 0603 from Vishay is a Space Qualified Resistor with Resistance 10 Ohms to 500 KOhms, Power Rating 0.1 W, Voltage 35 V, Tolerance 0.01 %, 0.02 %, 0.05 %, 0.1 %, Operating Temperature -65 to 155 Degree C. Tags: Surface Mount, Chip. More details for PHR 0603 can be seen below.