The MSMT125-ST-550R0K-G from Epak Electronics is a Space Qualified Resistor with Resistance 80 Ohms to 2 Kohms, Power Rating 250 mW, Voltage 100 V, Tolerance ±5%, ±10%, Operating Temperature -55 to 150 Degree C. More details for MSMT125-ST-550R0K-G can be seen below.