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| PartNumber | 1SMB5931 R4 | 1SMB5931 M4G | 1SMB5931 |
| Description | Zener Diodes 18 Volt 3 Watt 5% | Zener Diodes DO-214AA (SMB) 3000mW 5% Znr Diode | Zener Diodes 18 Volt 3 Watt 5% |
| Manufacturer | Taiwan Semiconductor | Taiwan Semiconductor | Taiwan Semiconductor |
| Product Category | Zener Diodes | Zener Diodes | Diodes - Zener - Single |
| RoHS | Y | - | - |
| Vz Zener Voltage | 18 V | 18 V | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | DO-214AA-2 | SMB-2 | - |
| Pd Power Dissipation | 3 W | 3 W | - |
| Voltage Tolerance | 5 % | 5 % | 5 % |
| Zener Current | 1 uA | 83 mA | 83 mA |
| Zz Zener Impedance | 12 Ohms | 12 Ohms | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - 65 C |
| Maximum Operating Temperature | + 150 C | + 150 C | + 150 C |
| Configuration | Single | Single | Single |
| Test Current | 20.8 mA | 20.8 mA | - |
| Packaging | Reel | - | Reel |
| Series | 1SMBxxxx | 1SMB5931 | - |
| Height | 2.65 mm | 2.65 mm | 2.41 mm |
| Length | 4.6 mm | 4.6 mm | 4.75 mm |
| Width | 3.95 mm | 3.95 mm | 3.73 mm |
| Brand | Taiwan Semiconductor | Taiwan Semiconductor | - |
| Ir Reverse Current | 1 uA | 1 uA | - |
| Product Type | Zener Diodes | Zener Diodes | - |
| Factory Pack Quantity | 3000 | - | - |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | - |
| Unit Weight | 0.003527 oz | - | 0.006349 oz |
| Part Aliases | - | - | R4 |
| Package Case | - | - | SMB |
| Pd Power Dissipation | - | - | 550 mW |
| Vz Zener Voltage | - | - | 18 V |
| Zz Zener Impedance | - | - | 12 Ohms |
| Ir Reverse Current | - | - | 1 uA |