Continued from the preceding page.
Continued on the following page.
First, repeat the following temperature/time cycle 5
times:
lowest operating temperature ±3˚C/30±3 min.
ordinary temperature/3 min. max.
highest operating temperature ±3˚C/30±3 min.
ordinary temperature/3 min. max.
Next, repeat twice the successive cycles of immersion,
each cycle consisting of immersion in a fresh water at
65
+5
–0
˚C for 15 min. and immersion in a saturated
aqueous solution of salt at 0±3˚C for 15 min.
The capacitor is then promptly washed in running
water, dried with a drying cloth, and allowed to sit at
room temperature for 24±2 hrs. (temperature
compensating type) or 48±4 hrs. (high dielectric type).
• Initial measurement for high dielectric constant type
The capacitors are heat treated for 1 hr. at
150
+ 0
–10
˚C, allowed to sit at room temperature for 48
±4 hrs., and given an initial measurement.
14
Temperature
and
Immersion
Cycle
Appearance
No defects or abnormalities
Capacitance
Change
Within ±5% or ±0.5pF
(whichever is larger) Char. X7R : Within ±12.5%
Char. Y5V : Within ±30%
Q/D.F.
30pF min. : Q U 350
10pF to 30pF : Q U 275+5C/2
10pF max. : Q U 200+10C
C : Nominal capacitance (pF)
Char. X7R : 0.05 max.
Char. Y5V : 0.075 max.
Insulation
Resistance 1,000MΩ or 50MΩ • µF min.
(whichever is smaller)
Dielectric
Strength
(Between
Terminals)
No defects or abnormalities
The lead wire is immersed in the melted solder 1.5mm
to 2mm from the main body at 350±10˚C for 3.5±0.5
sec. The specified items are measured after 24±2 hrs.
(temperature compensating type) or 48±4 hrs. (high
dielectric type).
• Initial measurement for high dielectric constant type
The capacitors are heat treated for 1 hr. at 150
+ 0
–10
˚C,
allowed to set at room temperature for 48±4 hrs., and
given an initial measurement.
13
Resistance
to
Soldering
Heat
Appearance
No defects or abnormalities
Capacitance
Change
Within ±2.5% or ±0.25pF
(whichever is larger) Char. X7R : Within ±7.5%
Char. Y5V : Within ±20%
Dielectric
Strength
(Between
Terminals)
No defects
The terminal of a capacitor is dipped into a 25% ethanol
(JIS-K-8101) solution of rosin (JIS-K-5902) and
then into molten solder for 2±0.5 sec. In both cases the
depth of dipping is up to about 1.5mm to 2mm from the
terminal body.
Temp. of solder: 245±5˚C Lead Free Solder (Sn-3.0Ag-0.5Cu)
235±5˚C H60A or H63A Eutectic Solder
12 Solderability of Leads Lead wire should be soldered with uniform coating on the axial
direction over 3/4 of the circumferential direction.
The capacitor is soldered securely to a supporting
terminal and a 10 to 55Hz vibration of 1.5mm peak-
peak amplitude is applied for 6 hrs. total, 2 hrs. in each
mutually perpendicular direction. Allow 1 min. to cycle
the frequency from 10Hz to 55Hz and the converse.
11 Vibration
Resistance
Appearance
No defects or abnormalities
Capacitance
Within the specified tolerance
Q/D.F. 30pF min. : Q U 1,000
30pF max. : Q U 400+20C
C : Nominal capacitance (pF)
Char. X7R : 0.025 max.
Char. Y5V : 0.05 max.
As in the figure, fix the capacitor body, apply the force
gradually to each lead in the radial direction of the
capacitor until reaching 10N and then keep the force
applied for 10±1 sec.
10 Terminal
Strength
Tensile
Strength Termination not to be broken or loosened
Bending
Strength Termination not to be broken or loosened
Each lead wire should be subjected to a force of 2.5N
and then bent 90˚ at the point of egress in one
direction. Each wire is then returned to the original
position and bent 90˚ in the opposite direction at the
rate of one bend per 2 to 3 sec.
No. Test Method
Specifications
Temperature Compensating Type
High Dielectric Constant Type
Item
F