| Series | FSFR-US |
| Package | Tube |
| Part Status | Not For New Designs |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 500V |
| Topology | Half-Bridge |
| Voltage - Start Up | 12.5 V |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 25V |
| Duty Cycle | 50% |
| Frequency - Switching | Up to 300kHz |
| Power (Watts) | 400 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 130°C (TJ) |
| Package / Case | 10-SSIP Module, 9 Leads, Formed Leads |
| Supplier Device Package | 9-SIP |
| Mounting Type | Through Hole |
