The MSTF-121AN-10001F-GB from Epak Electronics is a Space Qualified Resistor with Resistance 1 Ohms to 70 MOhms, Power Rating 150 mW to 6 W, Voltage 100 V, Tolerance ±0.01%, ±0.05%, ±0.1%, ±0.5%, ±1%, ±2%, ±5%, ±10%, Operating Temperature -55 to 150 Degree C. Tags: Chip. More details for MSTF-121AN-10001F-GB can be seen below.