Letter symbols used for DIODES:
| VRRM | Repetitive peak reverse voltage | V |
| IFAV | Mean forward current | A |
| IFRMS | RMS forward current | A |
| IFSM | Surge forward current | kA |
| Tstg | Storage temperature | oC |
| Tj | Operating junction temperature | oC |
| Tc | Case temperature | oC |
| VFM | Peak forward voltage | V |
| V(T0) | Threshold voltage | V |
| Rthjc | Thermal resistance junction to case | oC/W |
| IRRM | Repetitive peak reverse current, max | mA |
| trr | Reverse recovery time | ms |
| Qrr | Reverse recovery charge | ms |
| Krr | Coefficient of reverse recovery current | |
| rT | Slope resistance | mW |
| F | Mounting force | kN |
| M | Tightening force | Nm |
| VBR | Breakdown voltage | V |
| PRSM | Surge reverse power dissipation | kW |