| Компонент | Описание | Производитель | PDF | Buy |
| C503 | 250 WATTS (AC) DC/D CSINGLE OUTPUT | Powerbox |  |  |
| ZC503 | TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR | List of Unclassifed Manufacturers | | |
| CLC503 | Comlinear CLC503 180MHz, Differential-Output Amplifier | National Semiconductor | | |
| IRC503 | Power MOSFET(Vdss=100V, Rds(on)=0.16ohm, Id=14A) | International Rectifier | | |
| X9C503 | Digitally Controlled Potentiometer | Intersil Corporation | | |
| X9C503 | E2POT Nonvolatile Digital Potentiometer | Xicor Inc. | | |
| X9C503 | DIGITAL POTENTIOMETERS | Intersil Corporation | | |
| CGRC503 | SMD Genenal Purpose Rectifier | Comchip Technology | | |
| SAFC503 | 8-Bit CMOS Microcontroller | Siemens Semiconductor Group | | |
| SABC503 | 8-Bit CMOS Microcontroller | Siemens Semiconductor Group | | |
| 3386C503 | 9.6‡9.6 Square/ Single Turn /Trimming Potentiometer | DB Lectro Inc | | |
| SAF-C503 | 8-Bit CMOS Microcontroller | Siemens Semiconductor Group | | |
| SAB-C503 | 8-Bit CMOS Microcontroller | Siemens Semiconductor Group | | |
| BA90263AC503 | Power Electronics, Softstarter with softstop ministart | List of Unclassifed Manufacturers | | |
| SAF-C503-1R20N | 8-Bit CMOS Microcontroller | Siemens Semiconductor Group | | |
| SAB-C503-1R20N | 8-Bit CMOS Microcontroller | Siemens Semiconductor Group | | |
| SAB-C503-1RN | 8-Bit CMOS Microcontroller | Siemens Semiconductor Group | | |
| SAF-C503-1RN | 8-Bit CMOS Microcontroller | Siemens Semiconductor Group | | |
| CGRC503-G | SMD General Purpose Rectifiers | Comchip Technology | | |
| CGRC503-G | SMD General Purpose Rectifiers | Comchip Technology | | |
