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| Part Number | ALF20C271DC450 | ALF20C271DD450 | ALF20C271EC450 | ALF20C221DC450 | ALF20C271DC400 |
|---|---|---|---|---|---|
| Manufacturer | KEMET | KEMET | KEMET | KEMET | KEMET |
| Product Status | Active | Active | Active | Active | Active |
| Capacitance | 270 µF | 270 µF | 270 µF | 220 µF | 270 µF |
| Tolerance | ±20% | ±20% | ±20% | ±20% | ±20% |
| Voltage - Rated | 450 V | 450 V | 450 V | 450 V | 400 V |
| ESR (Equivalent Series Resistance) | 470mOhm @ 100Hz | 458mOhm @ 100Hz | 427mOhm @ 100Hz | 559mOhm @ 100Hz | 547mOhm @ 100Hz |
| Lifetime @ Temp. | 15000 Hrs @ 85°C | 15000 Hrs @ 85°C | 18000 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 | -40°C ~ 85°C | -40°C ~ 85°C |
| Polarization | Polar | Polar | Polar | Polar | Polar |
| Ratings | - | - | - | - | - |
| Applications | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Ripple Current @ Low Frequency | 1.68 A @ 100 Hz | 1.78 A @ 100 Hz | 2.07 A @ 100 Hz | 1.56 A @ 100 Hz | 1.61 A @ 100 Hz |
| Ripple Current @ High Frequency | 2.91 A @ 10 kHz | 3.27 A @ 10 kHz | 4.22 A @ 10 kHz | 2.89 A @ 10 kHz | 2.88 A @ 10 kHz |
| Impedance | 322 mOhms | 311 mOhms | 259 mOhms | 379 mOhms | 376 mOhms |
| Lead Spacing | 0.886" (22.50mm) | 0.886" (22.50mm) | 0.886" (22.50mm) | 0.886" (22.50mm) | 0.886" (22.50mm) |
| Size / Dimension | 1.378" Dia (35.00mm) | 1.378" Dia (35.00mm) | 1.575" Dia (40.00mm) | 1.378" Dia (35.00mm) | 1.378" Dia (35.00mm) |
| Height - Seated (Max) | 1.457" (37.00mm) | 1.654" (42.00mm) | 1.457" (37.00mm) | 1.457" (37.00mm) | 1.457" (37.00mm) |
| Surface Mount Land Size | - | - | - | - | - |
| Mounting Type | Through Hole, Press-Fit | Through Hole, Press-Fit | 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 | Radial, Can - Press-Fit - 4 Lead | Radial, Can - Press-Fit - 4 Lead |
