| PartNumber | KSP25BU | KSP25TA |
| Description | Darlington Transistors NPN Si Transistor Epitaxial Darlington | Darlington Transistors NPN Si Transistor Epitaxial Darlington |
| Manufacturer | ON Semiconductor | ON Semiconductor |
| Product Category | Darlington Transistors | Darlington Transistors |
| RoHS | T | Y |
| Configuration | Single | Single |
| Transistor Polarity | NPN | NPN |
| Collector Emitter Voltage VCEO Max | 40 V | 40 V |
| Emitter Base Voltage VEBO | 10 V | 10 V |
| Maximum DC Collector Current | 0.5 A | 0.5 A |
| Maximum Collector Cut off Current | 0.1 uA | 0.1 uA |
| Mounting Style | Through Hole | Through Hole |
| Package / Case | TO-92 | TO-92 Kinked Lead |
| Maximum Operating Temperature | + 150 C | + 150 C |
| Packaging | Bulk | Ammo Pack |
| Height | 4.58 mm | 4.58 mm |
| Length | 4.58 mm | 4.58 mm |
| Width | 3.86 mm | 3.86 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| DC Collector/Base Gain hfe Min | 10000 | 10000 |
| Product Type | Darlington Transistors | Darlington Transistors |
| Factory Pack Quantity | 1000 | 2000 |
| Subcategory | Transistors | Transistors |
| Unit Weight | 0.007090 oz | - |