MKP1840268014 - 6.8nF 100Vdc PP Film Capacitor Radial | Vishay
MPN: MKP1840268014 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.45 | $0.45 |
| 10 | $0.38 | $3.80 |
| 100 | $0.32 | $32.00 |
| 500 | $0.29 | $145.00 |
| 1,000 | $0.26 | $260.00 |
MKP1840268014 Overview
A film capacitor (also called a plastic-film or polymer-film capacitor) is a passive component that stores electrical energy in a thin polymer film such as polypropylene (PP), polyester (PET), or polyethylene naphthalate (PEN). Metallized film capacitors use a vacuum-deposited metal layer as the electrode directly on the film surface, which gives them a graceful self-healing behavior under voltage stress and a smaller package than foil-electrode constructions. Within the broader capacitor taxonomy, MKP1840268014 sits under film capacitor -> plastic-film capacitor -> metallized polypropylene (MKP/PP) capacitor -> DC link/snubber/signal coupling capacitor -> passive component.
Key features include a ±5 % capacitance tolerance (EIA standard M-class), stable capacitance across temperature (PP dielectric has a temperature coefficient of roughly -250 ppm/K and very low dielectric absorption), a typical dissipation factor tan(δ) on the order of 0.001 at 1 kHz, and an insulated radial-leaded construction suitable for automated insertion or hand wiring. PP film inherently delivers high insulation resistance, low loss across capacitance, and excellent frequency response, making MKP1840268014 well-suited to applications where capacitance must not change with temperature, frequency, or applied voltage.
The MKP1840 series is widely specified as a drop-in PP film capacitor in switched-mode power supplies, electronic ballasts, and audio coupling/decoupling networks where the alternative polyester (PET, MKT) or epoxy-dipped ceramic would distort or drift. Polypropylene's very low dielectric absorption (~0.05 %) makes it preferable for sample-and-hold, AD/DC reference, and analog signal-path designs that must hold a charge accurately.
Typical applications include SMPS output filtering after the rectifier, high-frequency snubber networks across switching transistors and rectifiers, DC-blocking in audio signal paths, timing and oscillator circuits, and general-purpose coupling in analog front ends. The 5 mm pitch and 100 VDC rating make it convenient for 24 V and 48 V industrial rails where it functions as a Y-class-like bypass or X-class-like across-the-line filter capacitor (consult the datasheet for safety class certification).
When designing with this part, keep lead-forming stress to a minimum so the through-hole terminations do not crack the epoxy seal, and verify the operating AC ripple current and dV/dt against the manufacturer datasheet. For surface-mount designs the MKP1840 series is not the right choice - consider Vishay's MMKP or stacked SMD PP families instead.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond the manufacturer datasheet alone, giving buyers and engineers a single source of truth for the MKP1840268014.
Drop-in alternatives for MKP1840268014 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MKP1840310014
✅ Drop-In📋 Reference alternative (not in catalog)
MKP1840210014
✅ Drop-In📋 Reference alternative (not in catalog)
MKP1840222014
✅ Drop-In📋 Reference alternative (not in catalog)
MKP1840247014
✅ Drop-In📋 Reference alternative (not in catalog)
PHE426KF6680JR17T0
✅ Drop-In📋 Reference alternative (not in catalog)
FKP26800680100J00SSD
✅ Drop-In📋 Reference alternative (not in catalog)
MKP1840268014 Maximum Ratings & Electrical Characteristics
| Capacitance | 6800 pF (6.8 nF) |
| Capacitance Tolerance | ±5% |
| Rated DC Voltage (Vdc) | 100 V |
| Rated AC Voltage (Vac) | 63 V |
| Dielectric Type | Polypropylene (PP), Metallized |
| Package / Mounting | Radial Leaded, Through-Hole |
| Lead Pitch | 5 mm |
| Series | MKP1840 |
| Operating Temperature Range | -55 °C to +100 °C |
| Dielectric Absorption | ≈ 0.05 % (typical for PP) |
| Self-Healing | Yes (metallized construction) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Packaging (Default) | Loose in Box (Bulk) |
MKP1840268014 radial leaded, through-hole Pin Configuration Guide
Pin configuration for MKP1840268014 (radial leaded, through-hole package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for MKP1840268014.
Refer to the datasheet for full pin configuration.
Typical Applications
MKP1840268014 is suitable for 6 applications: SMPS Output Filtering, Switching Transistor Snubber, Audio Signal Coupling, Timing and Oscillator Circuits, DC-Blocking and Line Filtering, Sample-and-Hold and ADC Reference.
SMPS Output Filtering
The Vishay MKP1840268014 fits SMPS secondary-side output filtering because its 100 VDC rating covers the rectified rail of 24-48 V industrial SMPS designs, and its 6.8 nF capacitance complements the main bulk electrolytic to filter switching ripple above 100 kHz. The polypropylene dielectric's low dissipation factor (~0.001 at 1 kHz) keeps self-heating minimal under continuous ripple current, while the 5 mm radial pitch is compatible with standard through-hole PCB layouts for analog and power boards.
Recommended
Switching Transistor Snubber
Across switching transistors, IGBTs, and rectifiers the MKP1840268014 acts as a low-energy RC snubber. The PP dielectric tolerates the high dV/dt and repetitive voltage spikes that occur at turn-off of the switching device, and the 100 VDC rating covers secondary-side snubber positions in 24-48 V power converters. Compared with ceramic snubbers, the metallized PP construction self-heals after dielectric breakdown, improving field reliability in snubber service.
Recommended
Audio Signal Coupling
In audio signal-path coupling, the MKP1840268014's polypropylene film provides very low dielectric absorption (~0.05 %) and a near-flat frequency response across the 20 Hz to 20 kHz audio band. This preserves transient fidelity and tonal balance compared with polyester (MKT) alternatives, which introduce measurable phase distortion at high audio frequencies. The 6.8 nF value forms an effective -3 dB point well below 20 Hz with typical 10 kohm to 100 kohm source and load impedances used in line-level audio stages.
Recommended
Timing and Oscillator Circuits
In RC-based oscillator networks (e.g., 555 timer astable circuits, analog oscillator loops, or PLL filter positions), the MKP1840268014's stable ±5 % capacitance tolerance and PP dielectric's low temperature coefficient (~-250 ppm/K) keep the timing period predictable across operating temperature. The 100 VDC rating leaves generous headroom over typical 5-15 V timing-node voltages, and the through-hole radial package is convenient for breadboard and through-hole prototype assemblies.
Recommended
DC-Blocking and Line Filtering
The MKP1840268014 functions as a DC-blocking capacitor in series with signal paths or as a Y/X-class-like line filter in low-voltage industrial installations. The 100 VDC rating and 63 VAC rating cover 24 VAC and 48 VDC industrial rails, while the polypropylene dielectric maintains low leakage current across the operating temperature range. Its 5 mm pitch fits standard through-hole PCB layouts used in industrial controllers and PLC analog modules.
Recommended
Sample-and-Hold and ADC Reference
In sample-and-hold and ADC reference filtering, the MKP1840268014's very low dielectric absorption (~0.05 %) makes it preferable to ceramic or polyester alternatives for hold-capacitor duties where droop and feedthrough errors must be minimized. The 6.8 nF value combined with the low-leakage PP dielectric provides a stable reference voltage during the ADC acquisition window, improving ADC measurement accuracy in precision instrumentation.
Recommended
Recommended Products Summary
Engineering reference data for MKP1840268014 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MKP1840310014 | MKP1840210014 | MKP1840222014 | PHE426KF6680JR17T0 | FKP26800680100J00SSD |
|---|---|---|---|---|---|---|
| Brand | Vishay | Vishay | Vishay | Vishay | KEMET | WIMA |
| Package | Radial 5 mm pitch | Radial 5 mm pitch | Radial 5 mm pitch | Radial 5 mm pitch | Radial 5 mm pitch | Radial 5 mm pitch |
| Capacitance | 6.8 nF | 10 nF | 1 nF | 2.2 nF | 6.8 nF | 6.8 nF |
| Capacitance Tolerance | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% |
| Rated DC Voltage | 100 V | 100 V | 100 V | 100 V | 100 V | 100 V |
| Rated AC Voltage | 63 V | 63 V | 63 V | 63 V | 63 V | 63 V |
| Dielectric | PP (Metallized) | PP (Metallized) | PP (Metallized) | PP (Metallized) | PP (Metallized) | PP (Metallized) |
| Operating Temperature | -55 °C to +100 °C | -55 °C to +100 °C | -55 °C to +100 °C | -55 °C to +100 °C | -55 °C to +100 °C | -55 °C to +100 °C |
| RoHS / Lead-Free | Compliant / Yes | Compliant / Yes | Compliant / Yes | Compliant / Yes | Compliant / Yes | Compliant / Yes |
Key Differentiators
- Same-package capacitance variants in MKP1840 family for design tuning (vs MKP1840310014 (10 nF))
- Polypropylene dielectric with low dielectric absorption (vs MKT (polyester) capacitors)
- Cross-brand second source availability (vs KEMET PHE426 and WIMA FKP2)
Design Notes
Do not assume any Vishay MKP1840 series part is interchangeable on capacitance: the part-number suffix '014' identifies the 100 V DC / 5 mm pitch variant, while the '268' mid-section encodes 6.8 nF. For example, MKP1840310014 is 10 nF in the same 100 V / 5 mm package, which will change RC time constants and filter cutoff frequencies. Always verify both voltage rating and capacitance value before substituting MKP1840 family parts on the same PCB footprint.
When mounting the MKP1840268014, avoid bending the leads too close to the body of the capacitor. The recommended minimum bend distance is 1.5x the lead diameter away from the epoxy seal, and the bend radius should be at least 1 mm to prevent cracking the seal. Use lead-formation tools rather than pliers to avoid mechanical stress on the capacitor body, which can compromise the metallized-film construction.
Estimated: at a typical 100 kHz SMPS secondary ripple of 50 mA RMS applied to the MKP1840268014, the AC voltage across the part is approximately V = I / (2πfC) = 0.05 / (2π × 100000 × 6.8e-9) ≈ 11.7 V. This is well below the 63 V AC rating, leaving generous margin. For higher-frequency or higher-ripple applications, recalculate the AC voltage using the actual operating frequency and RMS ripple current to ensure margin against the AC rating.
Compliance Information
RoHS compliant per Vishay product page. Not AEC-Q100 qualified (passive component). Halogen-free marking not confirmed in provided web data - see Vishay datasheet for confirmation. Lead-free terminations confirmed.
