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| PartNumber | PZTA28 | PZTA29 | PZTA27 |
| Description | Darlington Transistors NPN Transistor Darlington | Darlington Transistors NPN Transistor Darlington | Darlington Transistors NPN Transistor Darlington |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Darlington Transistors | Darlington Transistors | Darlington Transistors |
| RoHS | Y | Y | T |
| Configuration | Single | Single Dual Collector | Single |
| Transistor Polarity | NPN | NPN | NPN |
| Collector Emitter Voltage VCEO Max | 80 V | 100 V | 60 V |
| Emitter Base Voltage VEBO | 12 V | 12 V | 10 V |
| Collector Base Voltage VCBO | 80 V | 100 V | 60 V |
| Maximum DC Collector Current | 0.8 A | 0.8 A | 0.8 A |
| Maximum Collector Cut off Current | 0.1 uA | 0.1 uA | 0.1 uA |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOT-223 | SOT-223 | SOT-223 |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 150 C | + 150 C | + 150 C |
| Series | PZTA28 | PZTA29 | PZTA27 |
| Packaging | Reel | Reel | Reel |
| Height | 1.6 mm | 1.6 mm | 1.6 mm |
| Length | 6.5 mm | 6.5 mm | 6.5 mm |
| Width | 3.56 mm | 3.56 mm | 3.56 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| DC Collector/Base Gain hfe Min | 10000 | 10000 | 10000 |
| Product Type | Darlington Transistors | Darlington Transistors | Darlington Transistors |
| Factory Pack Quantity | 4000 | 4000 | 2500 |
| Subcategory | Transistors | Transistors | Transistors |
| Part # Aliases | PZTA28_NL | - | - |
| Unit Weight | 0.003951 oz | 0.003951 oz | 0.003951 oz |