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| Part Number | NCP1237BD65R2G | NCP1239BD65R2G | NCP1238BD65R2G | NCP1234BD65R2G | NCP1236BD65R2G | NCP1237AD65R2G |
|---|---|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | onsemi | onsemi | Fairchild Semiconductor |
| Product Status | Obsolete | Active | Obsolete | Active | Active | Active |
| Output Isolation | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated |
| Internal Switch(s) | No | No | No | No | No | No |
| Voltage - Breakdown | - | - | - | - | - | - |
| Topology | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback |
| Voltage - Start Up | 12 V | 12 V | 12 V | 12 V | 12 V | 12 V |
| Voltage - Supply (Vcc/Vdd) | 9.5V ~ 28V | 8.8V ~ 35V | 9.5V ~ 28V | 9.5V ~ 28V | 9.5V ~ 28V | 9.5V ~ 28V |
| Duty Cycle | 80% | 80% | 80% | 80% | 80% | 80% |
| Frequency - Switching | 65kHz | 65kHz | 65kHz | 65kHz | 65kHz | 65kHz |
| Power (Watts) | - | - | - | - | - | - |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | Current Limiting, Over Load, Over Temperature, Over Voltage | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit | Current Limiting, Over Load, Over Temperature | Over Load, Over Power, Over Temperature, Over Voltage | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit |
| Control Features | - | - | - | - | - | - |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SOIC (0.154", 3.90mm Width), 7 Leads |
| Supplier Device Package | 7-SOIC | 7-SOIC | 7-SOIC | 7-SOIC | 7-SOIC | 7-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
