TAP/TEP Technical Summary and
Application Guidelines
SECTION 4:
APPLICATION GUIDELINES FOR TANTALUM CAPACITORS
4.1 SOLDERING CONDITIONS AND
BOARD ATTACHMENT
4.2 RECOMMENDED SOLDERING
PROFILES
The soldering temperature and time should be the minimum
for a good connection.
Recommended wave soldering profile for mounting of
tantalum capacitors is shown below.
A suitable combination for wavesoldering is 230°C - 250°C
for 3 - 5 seconds.
After soldering the assembly should preferably be allowed to
cool naturally. In the event that assisted cooling is used, the
rate of change in temperature should not exceed that used
in reflow.
Small parametric shifts may be noted immediately after wave
solder, components should be allowed to stabilize at room
temperature prior to electrical testing.
AVX leaded tantalum capacitors are designed for wave
soldering operations.
Allowable range of peak temp./time combination for wave soldering
270
260
Dangerous Range
250
Temperature 240
o
(
C)
230
Allowable Range
with Care
220
210
200
Allowable Range
with Preheat
0
2
4
6
8
10
12
Soldering Time (secs.)
*See appropriate product specification
SECTION 5:
MECHANICAL AND THERMAL PROPERTIES, LEADED CAPACITORS
5.1 ACCELERATION
5.6 SOLDERING CONDITIONS
10 g (981 m/s)
Dip soldering permissible provided solder bath temperature
Ϲ270°C; solder time <3 sec.; circuit board thickness
м1.0 mm.
5.2 VIBRATION SEVERITY
10 to 2000 Hz, 0.75 mm or 98 m/s2
5.7 INSTALLATION INSTRUCTIONS
The upper temperature limit (maximum capacitor surface
temperature) must not be exceeded even under the most
unfavorable conditions when the capacitor is installed. This
must be considered particularly when it is positioned near
components which radiate heat strongly (e.g., valves and
power transistors). Furthermore, care must be taken, when
bending the wires, that the bending forces do not strain the
capacitor housing.
5.3 SHOCK
Trapezoidal Pulse 10 g (981 m/s) for 6 ms
5.4 TENSILE STRENGTH OF
CONNECTION
10 N for type TAR, 5 N for type TAP/TEP.
5.5 BENDING STRENGTH OF
CONNECTIONS
5.8 INSTALLATION POSITION
No restriction.
2 bends at 90°C with 50% of the tensile strength test loading.
5.9 SOLDERING INSTRUCTIONS
Fluxes containing acids must not be used.
158 ■ MAY 2013
KYOCERA AVX [ KYOCERA AVX ]
