Ceramic Capacitors
Middle and High Voltage
Page <10> 20/03/12 V1.1
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Item Test Condition Requirements
Resistance to
Soldering Heat
Solder temperature : 260 ±5°C
Dipping time : 10 ±1 s
Preheating : 120 to 150°C for 1 minute
before immerse the capacitor in a eutectic solder
Before initial measurement (Class II only) : Perform
150 + 0 / -10°C for 1 hour and then set for 48 ±4
hours at room temperature
Measurement to be made after keeping at room
temperature for 24 ±2 hours (Class I) or 48 ±4 hours
(Class II)
No remarkable damage
Cap change :
NP0 : Within ±2.5% or ±0.25 pF whichever is larger
X7R : Within ±7.5%
Q / D.F., I.R. and dielectric strength : To meet initial
requirements
25% maximum leaching on each edge
Temperature
Cycle
Conduct the five cycles according to the
temperatures and time
Before initial measurement (Class II only) : Perform
150+0 / -10°C for 1 hour and then set for 48 ±4 hours
at room temperature
Measurement to be made after keeping at room
temperature for 24 ±2 hours (Class I) or 48 ±4 hours
(Class II)
No remarkable damage
Cap change :
NP0 : Within ±2.5% or ±0.25 pF whichever is larger
X7R : Within ±7.5%
Q / D.F., I.R. and dielectric strength : To meet initial
requirements
Humidity
(Damp Heat)
Steady State
Test temperature : 40 ±2°C
Humidity : 90 to 95% RH
Test time : 500 +24 / -0 hrs
Measurement to be made after keeping at room
temperature for 24 ±2 hours (Class I) or 48 ±4 hours
(Class II)
No remarkable damage
Cap change :
NP0 : within ±5% or ±0.5 pF whichever is larger
X7R : within ±12.5%
Q / D.F. value :
NP0 : Cap ≥30 pF, Q ≥350; 10 pF ≤Cap <30 pF,
Q ≥275 + 2.5 C
Cap <10 pF; Q ≥200 + 10 C
X7R : ≤3%
I.R. : ≥1 GΩor R × C ≥50 Ω-F whichever is smaller
Humidity
(Damp Heat) Load
Test temperature : 40 ±2°C
Humidity : 90 to 95% RH
Test time : 500 +24 / -0 hrs
To apply voltage : Frated voltage
(Maximum 500 V)
Measurement to be made after keeping at room
temperature for 24 ±2 hours (Class I) or 48 ±4 hours
(Class II)
No remarkable damage
Cap change :
NP0 : within ±7.5% or ±0.75 pF whichever is larger
X7R : within ±12.5%
Q / D.F. value :
NP0 : Cap ≥30 pF, Q ≥200; Cap <30 pF,
Q ≥100 + 10 / 3 C
X7R : ≥3%
I.R. : ≥500 MΩor R × C ≥25 Ω-F whichever is
smaller
Step Temperature (°C) Time
(Min.)
1Minimum operating temperature +0 / -3 30 ±3
2Room temperature 2 to 3
3Maximum operating temperature +3 / -0 30 ±3
4Room temperature 2 to 3