W1225F-492J Datasheet, PDF (6/8 Pages) Superworld Electronics – PHONE LINE FILTER

PHONE LINE FILTER
W1225 SERIES
8. SOLDERING AND MOUNTING :
8-1. Attention regarding P.C.B. bending :
The following shall be considered when designing and laying out P.C.B.’S
(1)P.C.B. shall be designed so that products are not subjected to the mechanical stress for board warpage.
<Products direction>
a
Products shall be located in the sideways direction
(Length:a<b) to against the mechanical stress.
(Poor example)
(Good example)
(2) Products location on P.C.B
Products (A,B,C,D) shall be located carefully
to prevent mechanical stress when warping the board.
Products may be subjected to the mechanical
stress in the order of A>C>B≒D.
Seam ^B
C
A _Slit
D
a
Length : a<b
8-2. Soldering
Mildly activated rosin fluxes are preferred. 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.
8-2.1 Solder Re-flow :
Recommended temperature profiles for re-flow soldering in Figure 1.
8-2.2 Soldering Iron (Figure 2) :
Products attachment with a 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℃
b) 355℃ tip temperature (max)
c) Never contact the ceramic with the iron tip
d) 1.0mm tip diameter (max)
e) Use a 20 watt soldering iron with tip diameter of 1.0mm
f) Limit soldering time to 4~5 sec.
P rehe ating
S olde ring
Natu ral
cooling
TP(26 0° C/10 s max.)
TP(2 45° C/2 0~4 0s)
217
200
150
25
60~150s
60~180s
4 80s max.
Time(sec.)
Figure 1. Re-flow Soldering: 3 times max.
P rehe ating
350
S olde ring
Natu ral
cooling
150
O ver 60s
G rad ual
Cooling
Within 4-5s
Figure 2. Iron Soldering times : 1 times max.
NOTE : Specifications subject to change without notice. Please check our website for latest information.
07.10.2014
SUPERWORLD ELECTRONICS (S) PTE LTD
PG. 6