B32521 EPCOS [EPCOS], B32521 Datasheet - Page 36

• Manufacturer Part Number: B32521
• Description: Film Capacitors Metallized Polyester Film Capacitors (MKT)
• Manufacturer: EPCOS [EPCOS]

Mounting guidelines
1
1.1
The solderability of terminal leads is tested to IEC 60068-2-20, test Ta, method 1.
Before a solderability test is carried out, terminals are subjected to accelerated ageing (to
IEC 60068-2-2, test Ba: 4 h exposure to dry heat at 155 C). Since the ageing temperature is far
higher than the upper category temperature of the capacitors, the terminal wires should be cut off
from the capacitor before the ageing procedure to prevent the solderability being impaired by the
products of any capacitor decomposition that might occur.
Solder bath temperature
Soldering time
Immersion depth
Evaluation criteria:
Visual inspection
1.2
Resistance to soldering heat is tested to IEC 60068-2-20, test Tb, method 1A.
Conditions:
Series
MKT boxed (except 2.5
MFP
MKP (lead spacing > 7.5 mm)
MKT boxed (case 2.5
MKP
MKT
Please read Important notes
at the end of this document.
coated
uncoated (lead spacing > 10 mm)
(lead spacing
uncoated (lead spacing
insulated (B32559)
Soldering
Solderability of leads
Resistance to soldering heat
B32520 ... B32529
General purpose (stacked/wound)
7.5 mm)
6.5
6.5
7.2 mm)
235 5 C
2.0 0.5 s
2.0 +0/ 0.5 mm from capacitor body or seating plane
Wetting of wire surface by new solder 90%, free-flowing solder
10 mm)
7.2 mm)
Solder bath temperature Soldering time
260 5 C
Page 36 of 46
10 1 s
5 1 s
< 4 s
recommended soldering
profile for MKT uncoated
(lead spacing
insulated (B32559)
10 mm) and