| PartNumber | KSD1222TU | KSD1273P | KSD1230 |
| Description | Bipolar Transistors - BJT NPN Epitaxial Sil | Bipolar Transistors - BJT NPN Si Transistor Epitaxial | Time Delay & Timing Relays DIGI-TIMER(D.O.M.) |
| Manufacturer | ON Semiconductor | ON Semiconductor | Littelfuse |
| Product Category | Bipolar Transistors - BJT | Bipolar Transistors - BJT | Time Delay & Timing Relays |
| RoHS | E | E | Y |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | TO-251-3 | TO-220F-3 | - |
| Transistor Polarity | NPN | NPN | - |
| Configuration | Single | Single | - |
| Collector Emitter Voltage VCEO Max | 40 V | 60 V | - |
| Collector Base Voltage VCBO | 60 V | 80 V | - |
| Emitter Base Voltage VEBO | 5 V | 6 V | - |
| Maximum DC Collector Current | 3 A | 3 A | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 150 C | + 150 C | - |
| Height | 6.1 mm | 9.19 mm | - |
| Length | 6.6 mm | 10.16 mm | - |
| Packaging | Tube | Bulk | Bulk |
| Width | 2.3 mm | 4.7 mm | - |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | Littelfuse |
| Continuous Collector Current | 3 A | 3 A | - |
| DC Collector/Base Gain hfe Min | 2000 | 500 | - |
| Pd Power Dissipation | 15 W | 2000 mW | - |
| Product Type | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors | Timing Relays |
| Factory Pack Quantity | 70 | 200 | 1 |
| Subcategory | Transistors | Transistors | Relays |
| Unit Weight | 0.139332 oz | 0.080072 oz | - |
| Collector Emitter Saturation Voltage | - | 1 V | - |
| Gain Bandwidth Product fT | - | 30 MHz | - |
| DC Current Gain hFE Max | - | 2500 | - |
| Display Type | - | - | None |
| Termination Style | - | - | Quick Connect Terminal |
| Timing Range | - | - | 0.1 s to 10 s |
| Series | - | - | KSD1 |
| Contact Form | - | - | SPDT (1 Form C) |
| Type | - | - | Delay On Make Timer |