| PartNumber | NCP1251ASN100T1G | NCP1251ASN65T1G |
| Description | Switching Controllers OCP LATCH OVP VCC LATCH | Switching Controllers OCP OVP VCC LATCH |
| Manufacturer | ON Semiconductor | ON Semiconductor |
| Product Category | Switching Controllers | Switching Controllers |
| RoHS | Y | Y |
| Switching Frequency | 100 kHz | 65 kHz |
| Duty Cycle Max | 84 % | 84 % |
| Mounting Style | SMD/SMT | SMD/SMT |
| Package / Case | TSOP-6 | TSOP-6 |
| Packaging | Reel | Reel |
| Series | NCP1251 | NCP1251 |
| Type | Current Mode PWM Controllers | Current Mode PWM Controllers |
| Brand | ON Semiconductor | ON Semiconductor |
| Fall Time | 30 ns | - |
| Operating Supply Voltage | 28 V | - |
| Product Type | Switching Controllers | Switching Controllers |
| Rise Time | 40 ns | - |
| Factory Pack Quantity | 3000 | 3000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.000705 oz | 0.000705 oz |
| Topology | - | Flyback |
| Number of Outputs | - | 1 Output |
| Output Current | - | 300 mA |
| Minimum Operating Temperature | - | - 40 C |
| Maximum Operating Temperature | - | + 125 C |
| Isolation | - | Isolated |
| Operating Temperature Range | - | - 40 C to + 125 C |
| Product | - | Current Mode |
| Operating Supply Current | - | 2.1 mA |