The document provides technical specifications and applications of the MKP 1840 capacitors manufactured by Vishay Roederstein. These capacitors feature polypropylene film dielectric, vacuum deposited aluminum electrodes, and a flame retardant plastic case. They are suitable for pulse operations, deflection circuits in TV sets (S-correction), SMPS and thyristor circuits, storage, filter, timing, sample and hold circuits. The capacitors are available in rated voltages (UR) ranging from 100 VDC to 630 VDC, with capacitance range from 4700pF to 10µF and tolerances of ± 20% (M), ± 10% (K), ± 5% (J).
The MKP 1840 series are metallized polypropylene film capacitors designed for pulse operations, TV set deflection circuits, SMPS, thyristor circuits, storage, filter, timing, and sample‑and‑hold applications. The document lists the dielectric material, electrode type, and construction details, along with marking conventions and environmental classifications.
Key specifications include an operating temperature range of –55 °C to +100 °C, capacitance values from 4.7 nF to 10 µF, rated DC voltages up to 630 V, self‑inductance around 6 nH, and a reliability rating of over 300 000 h operational life. Packaging options such as ammo and reel formats are also described.
| Operating Temperature Range | -55 °C to +100 °C |
|---|---|
| Capacitance Range | 4.7 nF to 10 µF |
| Rated DC Voltages | 100 VDC, 160 VDC, 250 VDC, 400 VDC, 630 VDC |
| Self Inductance | ~6 nH (2 mm leads) |
| Insulation Resistance | Measured at 100 VDC after 1 min |
| Operational Life | >300 000 h |
| Failure Rate | <5 FIT (40 °C, 0.5 × Up) |
| Dielectric Material | Polypropylene film |
The capacitor can operate from –55 °C up to +100 °C.
Rated DC voltages are 100 VDC, 160 VDC, 250 VDC, 400 VDC, and 630 VDC.
The self‑inductance is approximately 6 nH when the leads are 2 mm long.
The capacitor is rated for an operational life of more than 300 000 hours.