| PartNumber | JAN1N4491 | JAN1N4491C | JAN1N4491CUS |
| Description | Zener Diodes Zener Diodes | Zener Diodes Zener Diodes | Zener Diodes Zener Diodes |
| Manufacturer | Semtech | Microchip | Microchip |
| Product Category | TVS Diodes / ESD Suppressors | Zener Diodes | Zener Diodes |
| Series | JAN1N449 | - | - |
| Product Type | TVS Diodes | Zener Diodes | Zener Diodes |
| Brand | Semtech | Microchip / Microsemi | Microchip / Microsemi |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | TVS Diodes / ESD Suppression Diodes | Diodes & Rectifiers | Diodes & Rectifiers |
| RoHS | - | N | N |
| Vz Zener Voltage | - | 120 V | 120 V |
| Mounting Style | - | Axial | SMD/SMT |
| Package / Case | - | DO-41-2 | D-5A-2 |
| Pd Power Dissipation | - | 1.5 W | 1.5 W |
| Voltage Tolerance | - | 2 % | 2 % |
| Zener Current | - | 12 mA | 12 mA |
| Zz Zener Impedance | - | 400 Ohms | 400 Ohms |
| Minimum Operating Temperature | - | - 65 C | - 65 C |
| Maximum Operating Temperature | - | + 175 C | + 175 C |
| Configuration | - | Single | Single |
| Test Current | - | 2 mA | 2 mA |
| Packaging | - | Foil Bag | Foil Bag |
| Diameter | - | 2.16 mm | - |
| Length | - | 4.06 mm | 5.08 mm |
| Ir Reverse Current | - | 0.25 uA | 0.25 uA |
| Vf Forward Voltage | - | 1.5 V | 1.5 V |
| Height | - | - | 2.62 mm |
| Width | - | - | 2.62 mm |