| ST3232E | RS 232, 422, 485, 644, X21, V35 |
| ST3237E | RS 232, 422, 485, 644, X21, V35 |
| ST3232 | RS 232, 422, 485, 644, X21, V35 |
| ST3237 | RS 232, 422, 485, 644, X21, V35 |
| ST3230C16R0L | SCRs |
| ST3230C10R1L | SCRs |
| ST3230C16R3 | SCRs |
| ST3230C10R2 | SCRs |
| ST3230C12R3 | SCRs |
| ST3230C18R3L | SCRs |
| ST3230C14R0L | SCRs |
| ST3230C12R1 | SCRs |
| ST3230C12R2L | SCRs |
| ST3230C12R0L | SCRs |
| ST3230C10R3 | SCRs |
| ST3230C10R3L | SCRs |
| ST3230C12R2 | SCRs |
| ST3230C10R0 | SCRs |
| ST3230C16R2 | SCRs |
| ST3230C16R1 | SCRs |
| ST3230C10R1 | SCRs |
| ST3230C16R0 | SCRs |
| ST3230C18R0L | SCRs |
| ST3230C14R1 | SCRs |
| ST3230C18R1 | SCRs |
| ST3230C12R3L | SCRs |
| ST3230C16R3L | SCRs |
| ST3230C14R0 | SCRs |
| ST3230C18R2 | SCRs |
| ST3230C14R2 | SCRs |
| ST3230C18R2L | SCRs |
| ST3230C12R1L | SCRs |
| ST3230C14R1L | SCRs |
| ST3230C12R0 | SCRs |
| ST3230C14R2L | SCRs |
| ST3230C14R3L | SCRs |
| ST3230C18R1L | SCRs |
| ST3230C10R0L | SCRs |
| ST3230C14R3 | SCRs |
| ST3230C10R2L | SCRs |
| ST3230C16R2L | SCRs |
| ST3230C16R1L | SCRs |
| ST3230C18R3 | SCRs |
| ST3230C18R0 | SCRs |