 | |  | |
| PartNumber | DS1961S-F5+ | DS1961S-F3+ | DS1961S |
| Description | iButtons & Accessories 1kb Protected EEPROM iButton w/SHA-1 Eng | iButtons & Accessories 1kb Protected EEPROM iButton w/SHA-1 Eng | |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | iButtons & Accessories | iButtons & Accessories | Specialized |
| RoHS | Y | Y | - |
| Product | iButtons | iButtons | - |
| Type | Password Protected | Password Protected | - |
| Memory Type | EEPROM | EEPROM | EEPROM |
| Memory Size | 1 kbit | 1 kbit | 128B |
| Operating Supply Voltage | 2.8 V to 5.25 V | 2.8 V to 5.25 V | - |
| Interface Type | 1-Wire | 1-Wire | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Dimensions | 17.35 mm x 5.89 mm | 17.35 mm x 3.1 mm | - |
| Package / Case | F5 MicroCan | F3 MicroCan | - |
| Packaging | Bulk | Bulk | - |
| Organization | 256 x 4 | 256 x 4 | - |
| Series | DS1961 | DS1961 | iButtonR |
| Brand | Maxim Integrated | Maxim Integrated | - |
| Product Type | iButtons & Accessories | iButtons & Accessories | - |
| Factory Pack Quantity | 100 | 1 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Tradename | iButton | iButton | - |
| Part # Aliases | 90-1961S+F50 DS1961S | 90-1961S+F30 DS1961S | - |
| Technology | - | - | * |
| Operating Temperature | - | - | * |
| Speed | - | - | * |