MKP1839 410 084HQ Vishay, MKP1839 410 084HQ Datasheet - Page 8

• Manufacturer Part Number: MKP1839 410 084HQ
• Description: CAPACITOR, AXIAL, MKP, 850V, 100NF
• Manufacturer: Vishay
• Series: MKP 1839 HQr

Specifications of MKP1839 410 084HQ

• Capacitor Dielectric Type: Polypropylene
• Capacitance: 0.1µF
• Capacitance Tolerance: ± 5%
• Voltage Rating: 850V
• Life Time @ Temperature: 2000 Hours @ 100°C
• Capacitor Case: RoHS Compliant

POWER DISSIPATION AND MAXIMUM COMPONENT TEMPERATURE RISE
The power dissipation must be limited in order not to exceed the maximum allowed component temperature rise as a function of
the free air ambient temperature.
The power dissipation can be calculated according type detail specification “HQN-384-01/101: Technical information film
capacitors with the typical tgd of the curves”.
The component temperature rise (ΔT) can be measured (see section “Measuring the component temperature” for more details)
or calculated by ΔT = P/G:
MEASURING THE COMPONENT TEMPERATURE
A thermocouple must be attached to the capacitor body as in:
The temperature is measured in unloaded (T
The temperature rise is given by ΔT = T
To avoid radiation or convection, the capacitor should be tested in a wind-free.
APPLICATION NOTE AND LIMITING CONDITIONS
These capacitors are not suitable for mains applications as across-the-line capacitors without additional protection, as described
hereunder. These mains applications are strictly regulated in safety standards and therefore electromagnetic interference
suppression capacitors conforming the standards must be used.
To select the capacitor for a certain application, the following conditions must be checked:
1. The peak voltage (U
2. The peak-to-peak voltage (U
3. The voltage pulse slope (dU/dt) shall not exceed the rated voltage pulse slope in an RC-circuit at rated voltage and without
4. The maximum component surface temperature rise must be lower than the limits (see figure max. allowed component
5. Since in circuits used at voltages over 280 V peak-to-peak the risk for an intrinsically active flammability after a capacitor
6. When using these capacitors as across-the-line capacitor in the input filter for mains applications or as series connected with
Document Number: 28162
Revision: 21-Oct-08
ringing. If the pulse voltage is lower than the rated DC voltage, the rated voltage pulse slope may be multiplied by U
divided by the applied voltage.
For all other pulses following equation must be fulfilled:
T is the pulse duration.
temperature rise).
breakdown (short circuit) increases, it is recommended that the power to the component is limited to 100 times the values
mentioned in the table “Heat conductivity”.
an impedance to the mains the applicant must guarantee that the following conditions are fulfilled in any case (spikes and
surge voltages from the mains included).
2
• ΔT = Component temperature rise (°C)
• P = Power dissipation of the component (mW)
• G = Heat conductivity of the component (mW/°C)
×
T
∫
0
⎛
⎝
dU
------- -
dt
⎞
⎠
2
×
dt U
<
AC and Pulse Metallized Polypropylene Film Capacitors
Rdc
P
) shall not be greater than the rated DC voltage (U
×
⎛
⎝
dU
------- -
dt
⎞
⎠
P-P
rated
) shall not be greater than the maximum (U
C
- T
For technical questions, contact: [e-mail]
amb
amb
MKP Axial Type
.
) and maximum loaded condition (T
Thermocouple
Rdc
P-P
)
) to avoid the ionisation inception level
C
).
Vishay Roederstein
MKP 1839 HQ
www.vishay.com
Rdc
and
8