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| Part Number | KA3843B | KA3844B | KA3843BD | KA3845B | KA3842B |
|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | onsemi | Fairchild Semiconductor |
| Product Status | Active | Active | Obsolete | Obsolete | Obsolete |
| Output Isolation | - | - | - | - | - |
| Internal Switch(s) | No | No | No | No | No |
| Voltage - Breakdown | - | - | - | - | - |
| Topology | - | - | - | - | - |
| Voltage - Start Up | 8.4 V | 16 V | 8.4 V | 8.4 V | 16 V |
| Voltage - Supply (Vcc/Vdd) | 12V ~ 25V | 12V ~ 25V | 12V ~ 25V | 12V ~ 25V | 12V ~ 25V |
| Duty Cycle | 97% | 48% | 97% | 48% | 97% |
| Frequency - Switching | Up to 500kHz | Up to 500kHz | Up to 500kHz | Up to 500kHz | Up to 500kHz |
| Power (Watts) | - | - | - | - | - |
| Fault Protection | - | - | - | - | - |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Frequency Control |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Package / Case | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) | 14-SOIC (0.154", 3.90mm Width) | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-DIP | 8-DIP | 14-SOIC | 8-DIP | 8-DIP |
| Mounting Type | Through Hole | Through Hole | Surface Mount | Through Hole | Through Hole |
