Vishay 193 PUR-SI 550V and 600V Snap-In Capacitors
Manufacturer: Vishay BCcomponents
Package / Case: Two- or three-terminal snap-in aluminum can, Ø22 × 25 mm to Ø35 × 60 mm
Description: 550 V and 600 V high-ripple-current aluminum electrolytic capacitors for inverter DC-link filtering
The Vishay 193 PUR-SI series consists of polarized, non-solid aluminum electrolytic capacitors designed for high-voltage power conversion. Vishay expanded the series with 550 V and 600 V ratings in January 2026, giving inverter designers additional voltage headroom in compact snap-in packages.
Compared with using several lower-voltage capacitors in series, the higher-voltage options may reduce capacitor count, balancing components and PCB area. The final configuration must still satisfy the DC-bus voltage, capacitance, ripple-current and lifetime requirements of the inverter.
Core Specifications
| Parameter | Vishay 193 PUR-SI |
| Capacitor type | Polarized aluminum electrolytic |
| Rated voltage range | 400 V to 600 V |
| Capacitance range | 47 µF to 820 µF |
| Capacitance tolerance | ±20% |
| 550 V capacitance range | 47 µF to 470 µF |
| 600 V capacitance range | 47 µF to 330 µF |
| Operating temperature | -40°C to +105°C |
| Useful life at +105掳C | More than 5000 hours |
| Endurance at +105掳C | 2000 hours |
| Maximum series ripple current | 3.27 A at 100 Hz and +105°C |
| Case dimensions | Ø22 × 25 mm to Ø35 × 60 mm |
| Terminal options | Two-terminal or three-terminal snap-in |
| Surge voltage | 1.1 × rated voltage |
| Typical ESL | 19 nH |
| Maximum ESL | 25 nH |
| Standard | IEC 60384-4 / EN 130300 |
| Compliance | RoHS |
550V Versus 600V Options
| Specification | 550 V Models | 600 V Models |
| Capacitance range | 47 µF to 470 µF | 47 µF to 330 µF |
| Case-size range | Ø22 × 25 to Ø35 × 60 mm | Ø22 × 30 to Ø35 × 55 mm |
| Rated ripple current | 0.58 A to 2.74 A | 0.63 A to 2.35 A |
| Maximum ESR at 100 Hz | 335 mΩ to 2950 mΩ | 540 mΩ to 3365 mΩ |
| Maximum impedance at 10 kHz | 220 mΩ to 2190 mΩ | 430 mΩ to 2700 mΩ |
| Surge-voltage rating | 605 V | 660 V |
Representative 550V and 600V Part Numbers
| Part Number | Voltage | Capacitance | Case Size | Ripple Current |
| MAL219350479E3 | 550 V | 47 µF | Ø22 × 25 mm | 0.58 A |
| MAL219350101E3 | 550 V | 100 µF | Ø22 × 45 mm | 1.00 A |
| MAL219350221E3 | 550 V | 220 µF | Ø30 × 45 mm | 1.68 A |
| MAL219350331E3 | 550 V | 330 µF | Ø35 × 45 mm | 2.26 A |
| MAL219350471E3 | 550 V | 470 µF | Ø35 × 60 mm | 2.74 A |
| MAL219351479E3 | 600 V | 47 µF | Ø22 × 30 mm | 0.63 A |
| MAL219351101E3 | 600 V | 100 µF | Ø25 × 45 mm | 1.16 A |
| MAL219351151E3 | 600 V | 150 µF | Ø30 × 40 mm | 1.41 A |
| MAL219351221E3 | 600 V | 220 µF | Ø35 × 40 mm | 1.75 A |
| MAL219351331E3 | 600 V | 330 µF | Ø35 × 55 mm | 2.35 A |
Typical Applications
Vishay 193 PUR-SI capacitors are suitable for smoothing, buffering and DC-link filtering in:
Solar PV inverters
Industrial motor drives
Small motor-control systems
EV and HEV chargers
Battery management and charging equipment
Switch-mode power supplies
Uninterruptible power supplies
Industrial air-conditioning systems
Medical power equipment
Welding, cutting and melting equipment
High-power LED and industrial lamp drivers
