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| PartNumber | R3111H491C-T1-FE | R3111H491A-T1-FE | R3111H491C-T1-F |
| Description | Supervisory Circuits Low Voltage Detector | Supervisory Circuits Low Voltage Detector | |
| Manufacturer | Ricoh Electronics | Ricoh Electronics | - |
| Product Category | Supervisory Circuits | Supervisory Circuits | - |
| RoHS | Y | Y | - |
| Type | Voltage Supervisory | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SOT-89-3 | SOT-89-3 | - |
| Threshold Voltage | 4.9 V | - | - |
| Number of Inputs Monitored | 1 Input | - | - |
| Output Type | CMOS | - | - |
| Manual Reset | No Manual Reset | - | - |
| Watchdog Timers | No Watchdog | - | - |
| Battery Backup Switching | Backup | - | - |
| Supply Voltage Max | 10 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Accuracy | 2 % | - | - |
| Series | R3111H | - | - |
| Packaging | Reel | Reel | - |
| Brand | Ricoh Electronic Devices Company | Ricoh Electronic Devices Company | - |
| Overvoltage Threshold | 4.998 V | - | - |
| Undervoltage Threshold | 4.802 V | - | - |
| Chip Enable Signals | No Chip Enable | - | - |
| Operating Supply Current | 1.3 uA | - | - |
| Pd Power Dissipation | 900 mW | - | - |
| Power Fail Detection | Yes | - | - |
| Product Type | Supervisory Circuits | Supervisory Circuits | - |
| Factory Pack Quantity | 1000 | 1000 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |
| Supply Voltage Min | 700 mV | - | - |