| Part Number | Watch Dog Timer | Features | Functions | Power supply voltage (V) | Detection voltage (V) | Reset certified voltage (V) (Typ.) | Package |
| MB3771 | - | Accurate supply voltage drop detection, External add-on allows detection of any desired voltage drop | Supply voltage monitoring applications | +3.5 to +18 | Any voltage level in addition to 4.2 V | 0.8 | SOP-8P |
| MB3773 | Single system | Watchdog timer Accurate supply voltage drop detection | Supply voltage monitoring applications with watchdog timer | +3.5 to +16 |
| MB3793-27A | Double system | Watchdog timer
Accurate supply voltage drop detection | Supply voltage monitoring applications with dual watchdog timer systems | +4 (Max.) | 2.7 +/- 0.07 | SOP-8P,SSOP-8P |
| MB3793-28A | 2.8 +/- 0.07 |
| MB3793-30A | +6 (Max.) | 3.0 +/- 0.07 |
| MB3793-34A | 3.4 +/- 0.08 | SOP-8P,(Option: SSOP-8P) |
| MB3793-37A | 3.7 +/- 0.1 |
| MB3793-42 | 4.2 +/- 0.1 |
| MB3793-45 | 4.5 +/- 0.1 | SOP-8P,SSOP-8P |
