BFC238330273 Vishay, BFC238330273 Datasheet - Page 21

• Manufacturer Part Number: BFC238330273
• Description: CAP FILM MMKP .027UF 1000VDC 5%
• Manufacturer: Vishay
• Series: MMKP 383r

Specifications of BFC238330273

• Voltage Rating: 1 KVolts
• Capacitance: 0.027µF
• Voltage - Ac: 350V
• Voltage - Dc: 1000V (1kV)
• Dielectric Material: Polypropylene, Metallized
• Tolerance: ±5%
• Operating Temperature: -55°C ~ 105°C
• Mounting Type: Through Hole
• Package / Case: Radial
• Size / Dimension: 0.689" L x 0.276" W (17.50mm x 7.00mm)
• Height: 0.532" (13.50mm)
• Termination: PC Pins
• Lead Spacing: 0.591" (15.00mm)
• Features: AC and Pulse
• Termination Style: Radial
• Product: AC Pulse / Snubber Metallized Polypropylene Capacitors
• Capacitor Dielectric Type: Polypropylene
• Capacitance Tolerance: ± 5%
• Capacitor Case Style: Radial Leaded
• No. Of Pins: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Esr (equivalent Series Resistance): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 2222 383 30273; 222238330273; BC1905; BFC2 383 30273; BFC2 383 30273

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”.
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 box.
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 graph 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
Document Number: 28124
Revision: 03-Mar-10
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”
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
Rdc
AC and Pulse Double Metallized Polypropylene
P
×
) shall not be greater than the rated DC voltage (U
Film Capacitors MMKP Radial Potted Type
⎛
⎝
dU
------- -
dt
⎞
⎠
rated
P-P
) shall not be greater than 2
C
- T
For technical questions, contact:
amb
amb
.
) and maximum loaded condition (T
√
2 x U
Rac
to avoid the ionisation inception level
[e-mail]
Thermocouple
Rdc
)
C
).
Vishay BCcomponents
MMKP 383
www.vishay.com
Rdc
and
207