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| PartNumber | KSD1621STF | KSD1621 | KSD1621RTF |
| Description | Bipolar Transistors - BJT NPN Epitaxial Transistor | TRANS NPN 25V 2A SOT-89 | |
| Manufacturer | ON Semiconductor | FSC | FAIRCHILD |
| Product Category | Bipolar Transistors - BJT | Transistors (BJT) - Single | Transistors (BJT) - Single |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SOT-89-3 | - | TO-243AA |
| Transistor Polarity | NPN | - | - |
| Configuration | Single | - | - |
| Collector Emitter Voltage VCEO Max | 25 V | - | - |
| Collector Base Voltage VCBO | 30 V | - | - |
| Emitter Base Voltage VEBO | 6 V | - | - |
| Collector Emitter Saturation Voltage | 0.18 V | - | - |
| Maximum DC Collector Current | 2 A | - | - |
| Gain Bandwidth Product fT | 150 MHz | - | - |
| Minimum Operating Temperature | - 55 C | - | - |
| Maximum Operating Temperature | + 150 C | - | - |
| Series | KSD1621 | - | - |
| DC Current Gain hFE Max | 560 | - | - |
| Height | 1.7 mm | - | - |
| Length | 4.7 mm | - | - |
| Packaging | Reel | - | Tape & Reel (TR) |
| Width | 2.7 mm | - | - |
| Brand | ON Semiconductor / Fairchild | - | - |
| Continuous Collector Current | 2 A | - | - |
| Pd Power Dissipation | 500 mW | - | - |
| Product Type | BJTs - Bipolar Transistors | - | - |
| Factory Pack Quantity | 4000 | - | - |
| Subcategory | Transistors | - | - |
| Part # Aliases | KSD1621STF_NL | - | - |
| Unit Weight | 0.004603 oz | - | - |
| Part Status | - | - | Obsolete |
| Transistor Type | - | - | NPN |
| Current Collector (Ic) (Max) | - | - | 2A |
| Voltage Collector Emitter Breakdown (Max) | - | - | 25V |
| Vce Saturation (Max) @ Ib, Ic | - | - | 400mV @ 75mA, 1.5A |
| Current Collector Cutoff (Max) | - | - | 100nA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | - | - | 100 @ 100mA, 2V |
| Power Max | - | - | 500mW |
| Frequency Transition | - | - | 150MHz |
| Operating Temperature | - | - | 150°C (TJ) |
| Mounting Type | - | - | Surface Mount |
| Supplier Device Package | - | - | SOT-89-3 |
| Base Part Number | - | - | KSD1621 |