| Horizontal Symbol | Vertical Symbol | Description |
 HDI1 |
 VDI1 |
Diode |
 HDI1R |
 VDI1R |
Diode 180 |
 HDI1B4 |
 VDI1B4 |
Diode Photosensitive |
 HDI1B5 |
 VDI1B5 |
Diode Photosensitive 2 |
 HDI1V2 |
 VDI1V2 |
Zener Diode - One Way |
 HDI1V3 |
 VDI1V3 |
Diac Diode - Two Way |
 HDV1B6 |
 VDV1B6 |
Photosensitive PNP Transistor |
 HDI1BR |
 VDI1BR |
Bridge rectifier |
 HDI1V5 |
 VDI1V5 |
3 Phase Bridge Rectifier |
 HDI1V4 |
 VDI1V4 |
SCR |
 HDI1_S00648 |
 VDI1_S00648 |
Backward (Unitunnel) Diode |
 HDI1_S00645 |
 VDI1_S00645 |
Tunnel Diode |
 HDI1_S00647 |
 VDI1_S00647 |
Breakdown Diode, Bidirectional |
 HDI1_S00651 |
 VDI1_S00651 |
Reverse Conducting Diode Thyristor |
 HDI1_S00650 |
 VDI1_S00650 |
Reverse Blocking Diode Thyristor |
 HDI1_S00659 |
 VDI1_S00659 |
Bidirectional Triode Thyristor, Triac |
 HDI1_S00654 |
 VDI1_S00654 |
Reverse Blocking Triode Thyristor, P-gate |
 HDI1_S00657 |
 VDI1_S00657 |
Turn-off Triode Thyristor,P-gate |
 HDI1_S00652 |
 VDI1_S00652 |
Bidirectional Diode Thyristor, Diac |
 HCA1_S00644 |
 VCA1_S00644 |
Variable Capacitance Diode |