Electrical Engineering Abbreviations
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
'Pa' to 'Pl', 'Pm' to 'Pq', 'Pr' to 'Pz'
| PR | - | pulse rate |
| PRBS | - | Pseudo Random Binary Sequence [PRBS Definition] |
| PRF | - | pulse-repetition frequency |
| PRI | - | primary rate interface |
| PRM | - | pulse-rate modulation |
| PRN | - | Pseudo Random Noise |
| PROM | - | programmable read-only memory [PROM IC Manufacturers] |
| PRR | - | pulse repetition rate |
| PRSL | - | primary area switch locator |
| PS | - | permanent signal |
| PSB | - | Packet Switching Backplane, Parallel System Bus |
| PSCB | - | Programmable Skew Clock Buffer |
| PSE | - | Power Sourcing Equipment [PoE] |
| psi | - | pounds [force] per square inch |
| PSK | - | phase-shift keying |
| PSM | - | Phase Shift Modulation |
| PSN | - | public switched network |
| PSoC | - | Programmable System-on-Chip |
| PSOP | - | Plastic Small-Outline Package [PSOP description] |
| PSRR | - | Power Supply Rejection Ratio |
| p-static | - | precipitation static |
| PSTN | - | public switched telephone network |
| PTF | - | patch and test facility |
| PTFE | - | PolyTetraFluoroEthylene |
| PTH | - | plated through hole |
| PTM | - | pulse-time modulation |
| PTMC | - | PCI Telcom Mezzanine Card [PTMC Description] |
| PTT | - | postal, telephone, and telegraph |
| PTT | - | push-to-talk [Voice communication operation] |
| PTTC | - | paper tape transmission code |
| PTTI | - | precise time and time interval |
| PTZ | - | pan, tilt, zoom |
| PU | - | power unit |
| PUT | - | Programmable Unijunction Transistor [Manufacturers] |
| PVC | - | polyvinyl chloride [insulation], permanent virtual circuit |
| pW | - | picowatt |
| PW | - | Pulse Width [PW definitions] |
| PWB | - | Printer Wiring Board [Printed Circuit Card] [PWB Terms] |
| PWC | - | Pulse Width Coded |
| PWM | - | pulse-width modulation |
| pWp | - | picowatt, psophometrically weighted |
| pWp0 | - | picowatts, relative to a 0TLP |
| PWTN | - | Paper White Twisted Nematic [Display Manufacturers] |
| pX | - | peak envelope power [in dB] |
| PX | - | peak envelope power, private exchange |
| PXI | - | PCI eXtensions for Instrumentation [PXI Description] |
| pY | - | mean power [in dB] |
| PY | - | mean power [in watts] |
| pZ | - | carrier power [in dB] |
| PZ | - | carrier power [in watts] |
