Type 418P
Vishay Sprague
Polyester Capacitors
Filmite® “E”, ORANGE DROP®, Radial Lead
FEATURES
• Identical performance characteristics to Type
225P pressed polyester capacitors through 600
WVDC ratings
RoHS
• Wound from PETP polyester film and thin gauge
foil under carefully controlled atmospheric
conditions
COMPLIANT
• Protected against moisture by a conformal coating of
epoxy
• Specifically designed for printed wiring board applications
• Widely used in computers, instrumentation and
telecommunications equipment
PERFORMANCE CHARACTERISTICS
Operating Temperature: - 55 °C to + 85 °C, standard; up to
+ 105 °C when WVDC is reduced to 70 % of + 85 °C rating.
To + 125 °C when WVDC is 50 % of + 85 °C rating.
for not more than 5 seconds. Capacitance rated 1000 volts
and above shall withstand a DC potential of 200 % of rated
voltage applied between the terminals for not more than 5
seconds. The test voltage must be applied and discharged
through a resistor of 1 ohm per volt.
Insulation Resistance: After a 2 minute charge at rated
voltage or 500 V, whichever is less.
Humidity Test:
At + 25 °C: 100 000 Megohm for C ≤ 0.25 Microfarads
25000 Megohm - Microfarads for C > 0.25 Microfarads
At + 85 °C: 10 000 Megohm for C ≤ 0.15 Microfarads
1500 Megohm - Microfarads for C > 0.15 Microfarads
At + 105 °C: 1500 Megohm for C ≤ 0.17 Microfarads
250 Megohm - Microfarads for C > 0.17 Microfarads
At + 125 °C: 200 Megohm for C ≤ 0.13 Microfarads
25 Megohm - Microfarads for C > 0.13 Microfarads
Condition capacitors with no voltage applied for 72 hours at
95 % relative humidity and + 75 °C. Remove capacitors from
humidity chamber, wipe surface dry of moisture and dry in
circulating air for 4 hours. Measure insulation resistance after
a 2 minute charge at 25 °C and rated voltage or 500 VDC,
whichever is less. Minimum product of insulation resistance
and capacitance shall be 5000 Megohm - Microfarads after
test but need not exceed 10 000 Megohm. Not more than
one failure allowed in 12 units tested.
Capacitance Tolerance and Dissipation Factor:
Capacitors shall be measured at a frequency for 1000 Hz at
+ 25 °C or else be referred to measurements made at that
frequency and temperature. The maximum dissipation factor
shall be 0.75 %.
DC Life Test:
Capacitance are capable of withstanding a 500 hour life test
at + 85 °C at 150 % of rated working voltage. After test,
capacitance shall not have changed by more than 5 % of
initial value, insulation resistance shall not have decreased
by more than 50 % of the initial limit and dissipation factor
shall not have increased to more than 1 %.
Dielectric Withstanding Voltage:
Capacitors rated below 1000 volts shall withstand a DC
potential of 250 % of rated voltage applied between terminals
DIMENSIONS in inches [millimeters]
L
Max.
L
Max.
D
Max.
L
Max.
0.237
[6.019]
Max.
0.237
[6.019]
Max.
0.237
[6.019]
Max.
1.250
[31.750]
Min.
Lead
Length
Lead
Length
0.032 [0.813] Dia.
(No. 20 AWG)
Tinned Copper-Clad Steel
S
S
S
0.030 [0.762]
0.060 [1.524]
0.030 [0.762]
Terminal A
Terminal B
Terminal D
S
Case
Code
L
(Max.)
Terminal A and B
0.500 [12.700]
0.688 [17.475]
0.969 [24.613]
1.344 [34.138]
Terminal D
0.375 [9.525]
0.375 [9.525]
0.719 [18.263]
1.094 [27.788]
J
K
L
0.70 [17.78]
0.90 [22.86]
1.20 [30.48]
1.60 [40.64]
M
Document Number: 42017
Revision: 16-Feb-07
For technical questions, contact: spresale@vishay.com
www.vishay.com
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