| PartNumber | 1N5543BUR-1 | 1N5543B/TR | 1N5543B |
| Description | Zener Diodes Zener Diodes | Zener Diodes Zener Diodes | Zener Diodes Zener Diodes |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| RoHS | N | N | N |
| Mounting Style | SMD/SMT | Through Hole | Through Hole |
| Package / Case | DO-213AA-2 | DO-204AH-2 | DO-35-2 |
| Packaging | Foil Bag | Reel | Foil Bag |
| Brand | Microchip / Microsemi | Microchip / Microsemi | Microchip / Microsemi |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 1 | 100 | 1 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Vz Zener Voltage | - | 25 V | - |
| Pd Power Dissipation | - | 0.5 W | - |
| Voltage Tolerance | - | 5 % | - |
| Zener Current | - | 15 mA | - |
| Zz Zener Impedance | - | 100 Ohms | - |
| Minimum Operating Temperature | - | - 65 C | - |
| Maximum Operating Temperature | - | + 175 C | - |
| Configuration | - | Single | - |
| Test Current | - | 1 mA | - |
| Diameter | - | 2.29 mm | - |
| Length | - | 5.08 mm | - |
| If Forward Current | - | 200 mA | - |
| Ir Reverse Current | - | 0.01 uA | - |
| Vf Forward Voltage | - | 1.1 V | - |
| Unit Weight | - | - | 0.004833 oz |