| PartNumber | JAN1N4944 | JAN1N4942 | JAN1N4942/TR |
| Description | TVS Diodes / ESD Suppressors D MET 1A FAST 400V | TVS Diodes / ESD Suppressors D MET 1A FAST 200V | Rectifiers Rectifier |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | Rectifiers | Rectifiers | Rectifiers |
| RoHS | N | N | N |
| Mounting Style | Through Hole | SMD/SMT | Through Hole |
| Package / Case | A-Package-2 | Package-A-2 | A-Package-2 |
| Packaging | Bulk | Bulk | Reel |
| Diameter | 2.79 mm | 2.79 mm | - |
| Length | 5.21 mm | 5.21 mm | - |
| Product | Rectifiers | Rectifiers | Rectifiers |
| Termination Style | Axial | Axial | - |
| Brand | Microchip / Microsemi | Microchip / Microsemi | Microchip / Microsemi |
| Product Type | Rectifiers | Rectifiers | Rectifiers |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Unit Weight | 0.017637 oz | 0.017637 oz | - |
| Vr Reverse Voltage | - | 200 V | 200 V |
| If Forward Current | - | 1 A | 1 A |
| Type | - | Fast Recovery Rectifiers | Fast Recovery Rectifiers |
| Configuration | - | Single | Single |
| Vf Forward Voltage | - | 1 V | 1.3 V |
| Max Surge Current | - | 15 A | 15 A |
| Ir Reverse Current | - | 1 uA | 1 uA |
| Recovery Time | - | 150 ns | 150 ns |
| Minimum Operating Temperature | - | - 65 C | - 65 C |
| Maximum Operating Temperature | - | + 175 C | + 175 C |