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| PartNumber | 1SMB5939HR4 | 1SMB5939HR4G | 1SMB5939HM4G |
| Description | Zener Diodes 3W,39V,5%,ZENER,SMB | Zener Diodes 3W,39V,5%,ZENER,SMB | Zener Diodes DO-214AA (SMB) 3000mW 5% Znr Diode |
| Manufacturer | Taiwan Semiconductor | Taiwan Semiconductor | Taiwan Semiconductor |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| RoHS | Y | Y | - |
| Qualification | AEC-Q101 | AEC-Q101 | AEC-Q101 |
| Packaging | Reel | Reel | - |
| Series | 1SMBxxxx | 1SMBxxxx | 1SMB5939H |
| Brand | Taiwan Semiconductor | Taiwan Semiconductor | Taiwan Semiconductor |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 3000 | 3000 | - |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Vz Zener Voltage | - | - | 39 V |
| Mounting Style | - | - | SMD/SMT |
| Package / Case | - | - | SMB-2 |
| Pd Power Dissipation | - | - | 3 W |
| Voltage Tolerance | - | - | 5 % |
| Zener Current | - | - | 38 mA |
| Zz Zener Impedance | - | - | 45 Ohms |
| Minimum Operating Temperature | - | - | - 55 C |
| Maximum Operating Temperature | - | - | + 150 C |
| Configuration | - | - | Single |
| Test Current | - | - | 9.6 mA |
| Height | - | - | 2.65 mm |
| Length | - | - | 4.6 mm |
| Width | - | - | 3.95 mm |
| Ir Reverse Current | - | - | 1 uA |