W3F900-RD-10 Datasheet, PDF (5/6 Pages) Superworld Electronics – WIREWOUND TYPE COMMON MODE FILTER

WIREWOUND TYPE COMMON MODE FILTER
W3 SERIES
9. SOLDERING AND MOUNTING :
9-1. Recommended PC Board Pattern
1
2
4
3
1.10
2.60
PC board should be designed so that products are not sufficient
under mechanical stress as warping the board.
Products shall be positioned in the sideway direction against
the mechanical stress to prevent failure.
9-2. Soldering
Mildly activated rosin fluxes are preferred. The minimum amount of solder can lead to damage from the stresses caused
by the difference in coefficients of expansion between solder, chip and substrate. Our terminations are suitable for all
wave and re-flow soldering systems. If hand soldering cannot be avoided, the preferred technique is the utilization of hot
air soldering tools.
9-2.1 Solder Re-flow :
Recommended temperature profiles for re-flow soldering in Figure 1.
9-2.2 Soldering Iron (Figure 2) :
Products attachment with soldering iron is discouraged due to the inherent process control limitations. In the event that
a soldering iron must be employed the following precautions are recommended.
Note :
a) Preheat circuit and products to 150°C.
d) 1.0mm tip diameter (max)
b) 280°C tip temperature (max)
e) Use a 20 watt soldering iron with tip diameter of 1.0mm
c) Never contact the ceramic with the iron tip
f) Limit soldering time to 3 secs.
Preheating
TP(260°C/10s max.)
Soldering
20~40s
Natural
cooling
217
200
150
60~150s
60~180s
480s max.
25
Time(sec.)
Figure 1. Re-flow Soldering
Preheating
260
245
150
Soldering Natural
cooling
Preheating
350
330
150
Soldering
3s
(max.)
10s
(max.)
Natural
cooling
Over 2min.
Gradual
Cooling
Within 3s
Figure 2. Wave Soldering
Over 1min.
Gradual
Cooling
Figure 3. Hand Soldering
NOTE : Specifications subject to change without notice. Please check our website for latest information.
14.04.2009
SUPERWORLD ELECTRONICS (S) PTE LTD
PG. 5