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| PartNumber | BD437 | BD437 (PB) | BD437,BDX53B,BDX53BFP,BD |
| Description | Bipolar Transistors - BJT NPN Medium Power | ||
| Manufacturer | STMicroelectronics | - | - |
| Product Category | Bipolar Transistors - BJT | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SOT-32-3 | - | - |
| Transistor Polarity | NPN | - | - |
| Configuration | Single | - | - |
| Collector Emitter Voltage VCEO Max | 45 V | - | - |
| Collector Base Voltage VCBO | 45 V | - | - |
| Emitter Base Voltage VEBO | 5 V | - | - |
| Collector Emitter Saturation Voltage | 0.2 V | - | - |
| Maximum DC Collector Current | 4 A | - | - |
| Gain Bandwidth Product fT | 3 MHz | - | - |
| Minimum Operating Temperature | - 65 C | - | - |
| Maximum Operating Temperature | + 150 C | - | - |
| Series | BD437 | - | - |
| DC Current Gain hFE Max | 130 | - | - |
| Height | 10.8 mm | - | - |
| Length | 7.8 mm | - | - |
| Packaging | Tube | - | - |
| Width | 2.7 mm | - | - |
| Brand | STMicroelectronics | - | - |
| Continuous Collector Current | 4 A | - | - |
| DC Collector/Base Gain hfe Min | 30 | - | - |
| Pd Power Dissipation | 36 W | - | - |
| Product Type | BJTs - Bipolar Transistors | - | - |
| Factory Pack Quantity | 2000 | - | - |
| Subcategory | Transistors | - | - |
| Unit Weight | 0.002116 oz | - | - |