RT is a thermistor that begins with D. DB hasn't seen it. R is the resistor, C is the capacitor, D is the diode, Q is the transistor, the field effect tube, IGBT, etc., T is the transistor, U or IC is the integrated circuit. PC generally means optocoupler, and Z means diode. J or CN indicates the terminal.
RT is a thermistor that begins with D. DB hasn't seen it. R is the resistor, C is the capacitor, D is the diode, Q is the transistor, the field effect tube, IGBT, etc., T is the transistor, U or IC is the integrated circuit. PC generally means optocoupler, and Z means diode. J or CN indicates the terminal.