| PartNumber | 1N748A TR | 1N748A | 1N748A BK |
| Description | Zener Diodes Std Zener Diode 3.9V .5W | Zener Diodes Zener Diodes | Zener Diodes 3.9V .5W |
| Manufacturer | Central Semiconductor | Microchip | Central Semiconductor |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| RoHS | Y | N | Y |
| Vz Zener Voltage | 3.9 V | - | 3.9 V |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | DO-35 | DO-35-2 | DO-35 |
| Pd Power Dissipation | 500 mW | - | 500 mW |
| Voltage Tolerance | 5 % | - | 5 % |
| Voltage Temperature Coefficient | - | - | - |
| Zener Current | 10 uA | - | 95 mA |
| Zz Zener Impedance | 23 Ohms | - | 23 Ohms |
| Minimum Operating Temperature | - 65 C | - | - 65 C |
| Maximum Operating Temperature | + 200 C | - | + 200 C |
| Configuration | Single | - | Single |
| Packaging | Reel | Bulk | Bulk |
| Series | 1N748 | - | 1N748 |
| Diameter | 2.29 mm | - | - |
| Height | - | - | 2.29 mm |
| Length | 5.08 mm | - | 5.08 mm |
| Width | - | - | 2.29 mm |
| Brand | Central Semiconductor | Microchip / Microsemi | Central Semiconductor |
| Voltage Regulation Accuracy | - | - | - |
| Ir Reverse Current | 10 uA | - | 10 uA |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 10000 | 1 | 2500 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Vf Forward Voltage | 1.5 V | - | - |
| Part # Aliases | 1N748A PBFREE TR | - | 1N748A BK PBFREE |
| Unit Weight | 0.007055 oz | 0.004833 oz | 0.004833 oz |
| Test Current | - | - | 20 mA |
| Termination Style | - | - | Axial |