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| Part Number | ALF20C391DF450 | ALF20C331DF450 | ALF20C391DF400 |
|---|---|---|---|
| Manufacturer | KEMET | KEMET | KEMET |
| Product Status | Active | Active | Active |
| Capacitance | 390 µF | 330 µF | 390 µF |
| Tolerance | ±20% | ±20% | ±20% |
| Voltage - Rated | 450 V | 450 V | 400 V |
| ESR (Equivalent Series Resistance) | 240mOhm @ 100Hz | 373mOhm @ 100Hz | 377mOhm @ 100Hz |
| Lifetime @ Temp. | 15000 Hrs @ 85°C | 15000 Hrs @ 85°C | 15000 Hrs @ 85°C |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Polarization | Polar | Polar | Polar |
| Ratings | - | - | - |
| Applications | General Purpose | General Purpose | General Purpose |
| Ripple Current @ Low Frequency | 2.6 A @ 100 Hz | 2.41 A @ 100 Hz | 2.19 A @ 100 Hz |
| Ripple Current @ High Frequency | 4.41 A @ 10 kHz | 4.38 A @ 10 kHz | 3.96 A @ 10 kHz |
| Impedance | 166 mOhms | 253 mOhms | 226 mOhms |
| Lead Spacing | 0.886" (22.50mm) | 0.886" (22.50mm) | 0.886" (22.50mm) |
| Size / Dimension | 1.378" Dia (35.00mm) | 1.378" Dia (35.00mm) | 1.378" Dia (35.00mm) |
| Height - Seated (Max) | 2.047" (52.00mm) | 2.047" (52.00mm) | 2.047" (52.00mm) |
| Surface Mount Land Size | - | - | - |
| Mounting Type | Through Hole, Press-Fit | Through Hole, Press-Fit | Through Hole, Press-Fit |
| Package / Case | Radial, Can - Press-Fit - 4 Lead | Radial, Can - Press-Fit - 4 Lead | Radial, Can - Press-Fit - 4 Lead |
