| D44C8 | Fairchild Semiconductor | NPN Power Amplifier |
| D44H8 | Fairchild Semiconductor | Power Transistor |
| D44H | ON Semiconductor | Complementary Silicon Power Transistors |
| D44VH | ON Semiconductor | Complementary Silicon Power Transistors |
| D45C11 | Fairchild Semiconductor | Power Transistor |
| D45C12 | ON Semiconductor | Complementary Silicon Power Transistor |
| D45C8 | Fairchild Semiconductor | NPN Power Amplifier |
| D45H2A | Fairchild Semiconductor | PNP Power Amplifier |
| D45H8 | Fairchild Semiconductor | Power Transistor |
| DA108S1 | STMicroelectronics | Diode array |
| DA121TT1 | ON Semiconductor | Silicon Switching Diode |
| DAC-08_SERIES | NXP Semiconductors | 8-bit high-speed multiplying D/A converter |
| DAC1003D160 | NXP Semiconductors | Dual 10 bits DAC, up to 160 MHz, 2 x interpolation |
| DAC1203D160 | NXP Semiconductors | Dual 12 bits DAC, up to 160 MHz, 2 x interpolation |
| DAC1403D160 | NXP Semiconductors | Dual 14 bits DAC, up to 160 MHz, 2 x interpolating |
| DALC112 | STMicroelectronics | LOW CAPACITANCE DIODE ARRAY FOR ESD PROTECTION |
| DALC208 | STMicroelectronics | Low capacitance diode array |
| DAN222 | ON Semiconductor | Common Cathode Dual Switching Diode |
| DAP222 | ON Semiconductor | Common Anode Dual Switching Diode |
| DB3TG | STMicroelectronics | DIAC |
| DB3 | STMicroelectronics | DIAC |
| DF005M | Fairchild Semiconductor | 1.5A Bridge Rectifier |
| DF005S | Fairchild Semiconductor | 1.5A Bridge Rectifier |
| DF01M | Fairchild Semiconductor | 1.5A Bridge Rectifier |
| DF01S | Fairchild Semiconductor | 1.5A Bridge Rectifier |
| DF02M | Fairchild Semiconductor | 1.5A Bridge Rectifier |
| DF02S | Fairchild Semiconductor | 1.5A Bridge Rectifier |
| DF04M | Fairchild Semiconductor | 1.5A Bridge Rectifier |
| DF04S | Fairchild Semiconductor | 1.5A Bridge Rectifier |
| DF06M | Fairchild Semiconductor | 1.5A Bridge Rectifier |
