The BAS21/A/C/S is a plastic-encapsulated switching diode designed for general-purpose switching applications. It features a fast switching speed and a surface mount package ideally suited for automatic insertion. The diode offers high conductance.
| Parameter | Symbol | Test Conditions | Limit | Unit |
| Maximum Ratings | VRRM | 250 | V | |
| VRWM | 250 | V | ||
| VR | 250 | V | ||
| IFM | 400 | mA | ||
| IO | 200 | mA | ||
| Surge Current | IFSM (@ t = 1.0s) | 2.5 | A | |
| IFSM (@ t = 1.0s) | 0.5 | A | ||
| IFRM | 625 | mA | ||
| Power Dissipation | PD | 225 | mW | |
| Thermal Resistance | RJA | 55 | /W | |
| Junction Temperature | TJ | 150 | ||
| Storage Temperature Range | TSTG | -55~+150 | ||
| Electrical Ratings | V(BR) | IR= 100A | 250 | V |
| IR | VR=200V | 0.1 | A | |
| VF (@ IF=100mA) | 1000 | mV | ||
| VF (@ IF=200mA) | 1250 | mV | ||
| Diode Capacitance | CD | VR=0V, f=1MHz | 5 | pF |
| Reveres Recovery Time | trr | IF=IR=30mA,Irr=0.1IR,RL=100 | 50 | ns |